Page 1 of 3 123 LastLast
Results 1 to 50 of 118
  1. #1
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688

    Winter Project - Niner Air 9 RDO

    Brown Santa dropped off the first parts of my winter project yesterday! I'll be building this up over the next few months, and hope to have it on the trail by the first weekend in March!

    The (medium) frame, as most of you already know, is a work of art! I threw it on my (Park Tool) scale last night, and it weighed in a 2.5 pounds. Wow! I knew it was light, but I was honestly expecting it to be little heavier!

    I'll post updates and pics (and probably stupid questions) as I get it built up!
    Attached Thumbnails Attached Thumbnails Winter Project - Niner Air 9 RDO-486254_10200368759128448_1072948151_n.jpg  


  2. #2
    mtbr member
    Reputation: bridger's Avatar
    Join Date
    Dec 2010
    Posts
    245
    Quote Originally Posted by chrisgardner73 View Post
    Brown Santa dropped off the first parts of my winter project yesterday! I'll be building this up over the next few months, and hope to have it on the trail by the first weekend in March!

    The (medium) frame, as most of you already know, is a work of art! I threw it on my (Park Tool) scale last night, and it weighed in a 2.5 pounds. Wow! I knew it was light, but I was honestly expecting it to be little heavier!

    I'll post updates and pics (and probably stupid questions) as I get it built up!
    How can you wait until March? I built my licorice RDO up on Halloween & I've got nearly 400 miles on it now. THE most grin inducing bike I've ever owned. You will love it!
    Attached Thumbnails Attached Thumbnails Winter Project - Niner Air 9 RDO-2012-11-04-14.17.43.jpg  

    Last edited by bridger; 11-30-2012 at 08:51 PM.
    "Prollyisnotprobably"

  3. #3
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    I'm looking at an Air9 RDO build myself, so I'll have to follow your build and see if I can learn anything Do you already know exact specs you'll go with, or still researching parts?

  4. #4
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by bridger View Post
    How can you wait until March? I built my licorice RDO up on Halloween & I've got nearly 400 miles on it now. THE most grin inducing bike I've ever owned. You will love it!
    Nice looking bike! I'm just taking my time with it...and trying to stay in the green with the boss. I still have two other mountain bikes to ride in the meantime! I can't wait to get it built up though! I demo'd one a few months ago, and couldn't believe how great the ride was. And the acceleration felt like my road bike.

  5. #5
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by kfb66 View Post
    I'm looking at an Air9 RDO build myself, so I'll have to follow your build and see if I can learn anything Do you already know exact specs you'll go with, or still researching parts?
    Yep! Here's how I will be building it up. I've already received the frame, bar, stem, and saddle. The post, fork, and grips are currently on the way. I'll slowly acquire the rest of the parts over the next couple of months.

    FRAME: Niner Air 9 RDO
    FORK: Rock Shox SID XX
    RIMS: Stan's No Tubes ZTR Crest 29er
    HUBS: DT Swiss 240s
    TIRE - FRONT: Maxxis IKON
    TIRE - REAR: Maxxis IKON
    SHIFTERS: SRAM XX1
    FRONT DERAILLEUR: N/A
    REAR DERAILLEUR: SRAM XX1
    CRANKS: SRAM XX1
    BOTTOM BRACKET: Truvativ PF30 Ceramic
    CASSETTE: SRAM XX1
    CHAIN: SRAM XX1
    DERAILLUER CABLE: Jagwire Ripcord
    PEDALS: Shimano XTR
    BRAKES: Magura MT-8
    BRAKE ROTORS: Magura Storm SL
    HANDLEBAR: Niner Flat Top 9 RDO
    STEM: Niner RDO
    HEADSET: KSA that came with the frame
    GRIPS: Ergon GA1 EVO
    SADDLE: Ergon SM3 Carbon Pro
    SEAT POST: Niner RDO
    BOTTLE CAGES: Bontrager RL
    Last edited by chrisgardner73; 12-26-2012 at 08:03 PM. Reason: Changed my mind on the drive train...going with XX1.

  6. #6
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Very Nice! What do you expect the weight to come in at ... 20'ish lbs?

    I'm hoping to build a h/t at 22lbs or less (including everything). Still researching bikes and parts, but if I do go with the Air9 RDO frame I've got a few things picked out already:


    FRAME: Niner Air 9 RDO (licorice)
    FORK: Rock Shox SID XX, 15mm maxle (remote lockout)???
    RIMS: Crest, Arch EX, maybe carbon???
    HUBS: Hope Pro II Evo
    TIRE - FRONT: Conti Race King 2.2 ???
    TIRE - REAR: Conti Race King 2.2
    SHIFTERS: SRAM XO/X9 (probably trigger)
    FRONT DERAILLUER: E13 chain guide ???
    REAR DERAILLUER: SRAM XO/X9
    CRANKS: SRAM XO/X9 (1x10 w/ bashguard)
    BOTTOM BRACKET:
    CASSETTE: SRAM XO/X9
    CHAIN: SRAM PC 1091R
    DERAILLUER CABLE: ???
    PEDALS: Shimano XT
    BRAKES: SRAM XO/X9
    HANDLEBAR: Niner RDO
    STEM: Niner RDO
    HEADSET: ???
    GRIPS: ESI Chunky
    SADDLE: WTB Rocket V
    SEAT POST: Niner RDO



    XO or X9 parts will come down to budget vs weight advantage. I currently have a full X9 1x10 setup on my Jet9 and it works great, but I'd really like to go lighter with an Air9 if I can afford it. Still undecided on wheels, and while I'd like to go light here, I don't want to give up too much durability as I do some longer races too. Keep hearing about these "Chinese" carbon wheels and wonder how they compare? For tires I'll probably go with Race Kings but I've also had great luck with Specialized XC tires (FastTrak, Renegade) ... which are especially easy to set up tubeless!





    Quote Originally Posted by chrisgardner73 View Post
    Yep! Here's how I will be building it up. I've already received the frame, bar, stem, saddle, and cassette. The post, fork, headset, and grips are currently on the way. I'll slowly acquire the rest of the parts over the next couple of months.

    This build will match most of the kit that I used on my R.I.P. 9, which has been solid, lightweight, and very reliable!

    FRAME: Niner Air 9 RDO
    FORK: Rock Shox SID XX
    RIMS: Stan's No Tubes ZTR Crest 29er
    HUBS: DT Swiss 240s
    TIRE - FRONT: Maxxis IKON
    TIRE - REAR: Maxxis IKON
    SHIFTERS: SRAM XO
    FRONT DERAILLUER: SRAM XO
    REAR DERAILLUER: SRAM XO
    CRANKS: Truvativ XO
    BOTTOM BRACKET: Truvativ PF30 Ceramic
    CASSETTE: SRAM XG-1099
    CHAIN: SRAM PowerChain 1091
    DERAILLUER CABLE: Jagwire Ripcord
    PEDALS: Shimano XT
    BRAKES: Magura MT-8
    BRAKE ROTORS: Magura Storm SL
    HANDLEBAR: Niner Flat Top 9 RDO
    STEM: Niner RDO
    HEADSET: Cane Creek 110
    GRIPS: Ergon GA1 EVO
    SADDLE: Ergon SM3 Carbon Pro
    SEAT POST: Niner RDO
    BOTTLE CAGES: Bontrager RL

  7. #7
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by kfb66 View Post
    Very Nice! What do you expect the weight to come in at ... 20'ish lbs?

    I'm hoping to build a h/t at 22lbs or less (including everything). Still researching bikes and parts, but if I do go with the Air9 RDO frame I've got a few things picked out already:


    FRAME: Niner Air 9 RDO (licorice)
    FORK: Rock Shox SID XX, 15mm maxle (remote lockout)???
    RIMS: Crest, Arch EX, maybe carbon???
    HUBS: Hope Pro II Evo
    TIRE - FRONT: Conti Race King 2.2 ???
    TIRE - REAR: Conti Race King 2.2
    SHIFTERS: SRAM XO/X9 (probably trigger)
    FRONT DERAILLUER: E13 chain guide ???
    REAR DERAILLUER: SRAM XO/X9
    CRANKS: SRAM XO/X9 (1x10 w/ bashguard)
    BOTTOM BRACKET:
    CASSETTE: SRAM XO/X9
    CHAIN: SRAM PC 1091R
    DERAILLUER CABLE: ???
    PEDALS: Shimano XT
    BRAKES: SRAM XO/X9
    HANDLEBAR: Niner RDO
    STEM: Niner RDO
    HEADSET: ???
    GRIPS: ESI Chunky
    SADDLE: WTB Rocket V
    SEAT POST: Niner RDO



    XO or X9 parts will come down to budget vs weight advantage. I currently have a full X9 1x10 setup on my Jet9 and it works great, but I'd really like to go lighter with an Air9 if I can afford it. Still undecided on wheels, and while I'd like to go light here, I don't want to give up too much durability as I do some longer races too. Keep hearing about these "Chinese" carbon wheels and wonder how they compare? For tires I'll probably go with Race Kings but I've also had great luck with Specialized XC tires (FastTrak, Renegade) ... which are especially easy to set up tubeless!
    I don't (personally) know anyone running the Chinese rims, but from what I've read here and there on MTBR, some people seem to like them. Me personally, I MIGHT pick up a set of Roval's once the dust settles on me making it rain for this build. I'll have to see how the Crest's do first before I spend the money though.

    I'm also a big fan of Specialized tires! I run The Captain (F) and Fast Trak (R) on both my RIP 9 and SIR 9. That combo has worked really well for me all along the Front Range here in Colorado! I will likely run that same setup on the Air 9 RDO for everyday use...and swap to the IKON's (or second set of wheels with IKON's mounted) for racing...which has also worked really well for me.

  8. #8
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Quote Originally Posted by chrisgardner73 View Post
    I don't (personally) know anyone running the Chinese rims, but from what I've read here and there on MTBR, some people seem to like them. Me personally, I MIGHT pick up a set of Roval's once the dust settles on me making it rain for this build. I'll have to see how the Crest's do first before I spend the money though.

    I'm also a big fan of Specialized tires! I run The Captain (F) and Fast Trak (R) on both my RIP 9 and SIR 9. That combo has worked really well for me all along the Front Range here in Colorado! I will likely run that same setup on the Air 9 RDO for everyday use...and swap to the IKON's (or second set of wheels with IKON's mounted) for racing...which has also worked really well for me.
    When I built up my Jet9 in 2010, my first choice for tires were Ikons, but none were available (local or online). Went with the Conti Race Kings and I was pleasantly surprised! Fast rolling and MUCH better traction then I expected with the low-profile treads (especially as a rear tire). Not completely sold on the RK's as front tire though? Captain front with Fast Trak rear is a nice combo, but probably too heavy for racing? I've heard nothing but good about the Renegades too and this year they added 2.3's to the mix, so might try them as a light race tire? So tell me about the Ikons ... how do they compare to a tire like the Fast Trak (front and/or rear)?

    I'm also looking hard at the Crest wheels but I see a lot of posts about them being too flexy? Arch EX would be an easy choice for me, albeit heavier then I prefer for xc racing? I assume the Rovals would be VERY pricey to purchase individually ... not sure I can justify the cost?

  9. #9
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    The first piece of the drive train has arrived, a SRAM XX 11-36 cassette. This thing is a work of art.
    Attached Thumbnails Attached Thumbnails Winter Project - Niner Air 9 RDO-530460_10200377145058091_1069411408_n.jpg  


  10. #10
    mtbr member
    Reputation:
    Join Date
    Jun 2010
    Posts
    170
    Could you please check if the frame has a drain hole at the bottom of the BB.

  11. #11
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by sand0kan View Post
    Could you please check if the frame has a drain hole at the bottom of the BB.
    Yes, there is one.

  12. #12
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by kfb66 View Post
    When I built up my Jet9 in 2010, my first choice for tires were Ikons, but none were available (local or online). Went with the Conti Race Kings and I was pleasantly surprised! Fast rolling and MUCH better traction then I expected with the low-profile treads (especially as a rear tire). Not completely sold on the RK's as front tire though? Captain front with Fast Trak rear is a nice combo, but probably too heavy for racing? I've heard nothing but good about the Renegades too and this year they added 2.3's to the mix, so might try them as a light race tire? So tell me about the Ikons ... how do they compare to a tire like the Fast Trak (front and/or rear)?

    I'm also looking hard at the Crest wheels but I see a lot of posts about them being too flexy? Arch EX would be an easy choice for me, albeit heavier then I prefer for xc racing? I assume the Rovals would be VERY pricey to purchase individually ... not sure I can justify the cost?
    The Captain/Fast Trak combo is a little heavy, when compared to the IKON's. I definitely notice the weight difference up front. Maybe a tad heavy for my taste for racing, but a ton of fun for regular riding! I run the Fast Trak backwards, and found that it grips pretty well here on the Front Range. However, the IKON's hook up well too...but do suffer a little in the front, as compared to The Captain. For racing though...IKON's!

    As for wheels, it'll be a little trial and error. I run Arch's on my other bikes, and this will be my first experience with the Crest. I have a buddy (who is slightly heavier) who runs the Crest in the same type events that I race, and he loves them! I guess we'll see how it goes!

    The Rovals are actually reasonably priced ($1700) when compared to other wheels, such as ENVE ($2500), and have a pretty good reputation. I'm definitely gonna give the Stan's a shot first!

  13. #13
    mtbr member
    Reputation:
    Join Date
    Dec 2010
    Posts
    421
    The rovals rock. Two seasons of hammering and still true as an arrow. Never touched a spoke.

  14. #14
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Quote Originally Posted by Gutch View Post
    The rovals rock. Two seasons of hammering and still true as an arrow. Never touched a spoke.
    Roval Carbon SL or basic Roval Carbon? Out of curiosity, what do they weigh ... while I'm sure they're much stiffer, wondering how much lighter they are compared to Crest?

  15. #15
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by Gutch View Post
    The rovals rock. Two seasons of hammering and still true as an arrow. Never touched a spoke.
    Good to know! Thanks!

  16. #16
    mtbr member
    Reputation:
    Join Date
    Dec 2010
    Posts
    421
    SL'S. They are fast. The weight is published on their site, but i think they are 1400? BTW i also weigh 185 and ride some rough singletrack. New ikon's where i ride lasted one ride. The rivals are strong.

  17. #17
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Quote Originally Posted by Gutch View Post
    SL'S. They are fast. The weight is published on their site, but i think they are 1400? BTW i also weigh 185 and ride some rough singletrack. New ikon's where i ride lasted one ride. The rivals are strong.
    Good to know about the Rovals. Light, stiff, and durable ... sounds like a real nice upgrade!!

  18. #18
    mtbr member
    Reputation:
    Join Date
    Jun 2010
    Posts
    170
    Quote Originally Posted by chrisgardner73 View Post
    Yes, there is one.
    Is it possible for you to make a picture of it?

  19. #19
    mtbr member
    Reputation:
    Join Date
    Dec 2010
    Posts
    421
    Here's my stable.
    Attached Thumbnails Attached Thumbnails Winter Project - Niner Air 9 RDO-20121204_201558.jpg  

    Winter Project - Niner Air 9 RDO-20121204_201615.jpg  


  20. #20
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by sand0kan View Post
    Is it possible for you to make a picture of it?
    Yea man...I'll shoot a pic in the morning, and post it back up here.

  21. #21
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by sand0kan View Post
    Is it possible for you to make a picture of it?
    Here you go!

    Winter Project - Niner Air 9 RDO-imageuploadedbytapatalk1354824786.923036.jpg

  22. #22
    mtbr member
    Reputation:
    Join Date
    Jun 2010
    Posts
    170
    Thanx! Change in concept then cause mine does not have one.

  23. #23
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Got my drive train!Winter Project - Niner Air 9 RDO-imageuploadedbytapatalk1354993600.859970.jpg

  24. #24
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Still making up a build list and looking at SRAM site to get an idea of price/weight options. Regarding components like shifters and brakes ... is the listed price and weight for a set, or only one of each??

    For example SRAM lists XO brakes at $245 and 315g ... I assume double that for front and rear brakes?

    XO 10 spd shifter lists price for a "pair", but not sure if weight (232g) is for pair or each??

  25. #25
    mtbr member
    Reputation:
    Join Date
    Dec 2012
    Posts
    1
    Chris,
    About the drive train: Can you tell me what Q-factor and crank length you chose?

    I've bought me also an air 9 rdo frame and I want also a sram xx1 drive train, but I'm not sure which q-factor would be the best (regarding clearance whith chainstay).

    Thx for the info!
    Grtz

  26. #26
    mtbr member
    Reputation:
    Join Date
    Apr 2004
    Posts
    251
    When my dealer aksed Niner which q-factor crank they recommended the wider one, 166 I think it is. Don't know if that means the 156 won't work, but that's what they recommended. Could be their safe answer for right now, without a lot of experience with that crank yet.

  27. #27
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    I emailed Niner a while back about Air 9 RDO/XX1 compatibility, and here is the response that got:

    "We have been testing the XX1 drive train from SRAM and are finding that we will likely need to put a limitation on the front chainring size of 32 teeth to avoid frame interference. Either of the Q factors will work I just warn folks on narrow Q factors and mountain bikes that heel strike can be an issue if they have any abnormality in their pedal stroke."

    I will be running the wide Q factor with a 30T chainring.

  28. #28
    mtbr member
    Reputation: GTR2ebike's Avatar
    Join Date
    May 2010
    Posts
    1,872
    Quote Originally Posted by chrisgardner73 View Post
    I emailed Niner a while back about Air 9 RDO/XX1 compatibility, and here is the response that got:

    "We have been testing the XX1 drive train from SRAM and are finding that we will likely need to put a limitation on the front chainring size of 32 teeth to avoid frame interference. Either of the Q factors will work I just warn folks on narrow Q factors and mountain bikes that heel strike can be an issue if they have any abnormality in their pedal stroke."

    I will be running the wide Q factor with a 30T chainring.
    Why would you run the 30T after that email?
    The wider Q-factor crank doesn't move the chain line further out, just a larger bend in the crankarm

  29. #29
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by GTR2ebike View Post
    Why would you run the 30T after that email?
    The wider Q-factor crank doesn't move the chain line further out, just a larger bend in the crankarm
    I had asked them about which Q factor they recommended, and if the RDO could accommodate the full range of XX1 rings. It looks like either Q factor would work, I prefer the wider...and that there's a chance that the maximum size ring I can run is 32T. I'm going to try the 32T first, but I also have 30T.

  30. #30
    Carbon & Ti rule
    Reputation: muzzanic's Avatar
    Join Date
    Apr 2009
    Posts
    5,397
    Quote Originally Posted by chrisgardner73 View Post
    I had asked them about which Q factor they recommended, and if the RDO could accommodate the full range of XX1 rings. It looks like either Q factor would work, I prefer the wider...and that there's a chance that the maximum size ring I can run is 32T. I'm going to try the 32T first, but I also have 30T.
    I'm building up a Air9 RDO for my wife & am thinking of going with the XX1 so will have to see what works,
    Raising money, my friend broke his neck Mtbing, Please Share link. http://givealittle.co.nz/cause/elliottkeys/donations

  31. #31
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by muzzanic View Post
    I'm building up a Air9 RDO for my wife & am thinking of going with the XX1 so will have to see what works,
    Depending on your timeline, I can definitely let you know how it comes out. I probably won't be done for a month or so though. Need to wait on the drivetrain to come in. I couldn't bring the one in the pic home. Our team order has to be separate from shop inventory to get the special pricing. Oh well...I can wait!

  32. #32
    Carbon & Ti rule
    Reputation: muzzanic's Avatar
    Join Date
    Apr 2009
    Posts
    5,397
    Quote Originally Posted by chrisgardner73 View Post
    Depending on your timeline, I can definitely let you know how it comes out. I probably won't be done for a month or so though. Need to wait on the drivetrain to come in. I couldn't bring the one in the pic home. Our team order has to be separate from shop inventory to get the special pricing. Oh well...I can wait!
    I'm hoping to build her bike next week.
    Raising money, my friend broke his neck Mtbing, Please Share link. http://givealittle.co.nz/cause/elliottkeys/donations

  33. #33
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by muzzanic View Post
    I'm hoping to build her bike next week.
    OK...You win!

  34. #34
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Quote Originally Posted by chrisgardner73 View Post
    I emailed Niner a while back about Air 9 RDO/XX1 compatibility, and here is the response that got:

    "We have been testing the XX1 drive train from SRAM and are finding that we will likely need to put a limitation on the front chainring size of 32 teeth to avoid frame interference. Either of the Q factors will work I just warn folks on narrow Q factors and mountain bikes that heel strike can be an issue if they have any abnormality in their pedal stroke."

    I will be running the wide Q factor with a 30T chainring.
    I would think a 30t ring would leave you short of gears for any faster/open sections ... assuming you do some racing?

    I currently run 1x10 w/ 32 ring and 11-36 cassette, and I have never felt the need for more granny, but there are a few occasions I could have used more top end. With the XX1 having a 42 granny cog I would have thought most would go with an even taller ring up front vs smaller ... 34 or bigger? If the XX1 doesn't allow a bigger ring due to frame clearance then I would find 1x10 a better and more versatile setup.

  35. #35
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by kfb66 View Post
    I would think a 30t ring would leave you short of gears for any faster/open sections ... assuming you do some racing?

    I currently run 1x10 w/ 32 ring and 11-36 cassette, and I have never felt the need for more granny, but there are a few occasions I could have used more top end. With the XX1 having a 42 granny cog I would have thought most would go with an even taller ring up front vs smaller ... 34 or bigger? If the XX1 doesn't allow a bigger ring due to frame clearance then I would find 1x10 a better and more versatile setup.
    I do race (endurance events...poorly, mind you), and my rationale is that late in those type events, I'm pretty much in my 26T up front the whole time with my 2x10. I plan to try out the 32T on some of our longer climbs here in COS before jumping to the 30T. If it works out well, I'll probably leave it as-is. However, if I happen to get into the Leadville 100, I can't promise I won't be running that 30T.

  36. #36
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Quote Originally Posted by chrisgardner73 View Post
    I do race (endurance events...poorly, mind you), and my rationale is that late in those type events, I'm pretty much in my 26T up front the whole time with my 2x10. I plan to try out the 32T on some of our longer climbs here in COS before jumping to the 30T. If it works out well, I'll probably leave it as-is. However, if I happen to get into the Leadville 100, I can't promise I won't be running that 30T.
    I think you'll find the 32 ring gives you more than enough granny ... especially with a 42 cog out back! If 32x42 doesn't get you up a climb, I'd venture to say it would be faster (and less fatiguing) to get off and walk. During 24 hour races I've found that later in a race I actually look forward to one or two dismounts on steep or longer climbs .... gives a nice mental and physical break from pedaling, and I find helps me stay fresh/faster for the remainder of the lap.

    Due to cost, I'll likely be going with another 1x10 for my Air9 build, but I look forward to hearing how that works out for you!

  37. #37
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by kfb66 View Post
    I think you'll find the 32 ring gives you more than enough granny ... especially with a 42 cog out back!
    You would think...but I'm a big baby!

  38. #38
    Carbon & Ti rule
    Reputation: muzzanic's Avatar
    Join Date
    Apr 2009
    Posts
    5,397
    Quote Originally Posted by chrisgardner73 View Post
    You would think...but I'm a big baby!
    Hi having a 30 on the front of the XX1 group gives you about the same top end as having a 35 tooth ring up front on a 36-11 cassette.

    On my Jet9 RDO with XX1 I ran last week with the 32 up front & this week with the 30 & next week I will run it with the 28 & then the following week I will go back to 32, Just to see how they feel.

    At this stage I'm liking the 30 & feel that my be what I use for my main chain ring but we will see.

    That is what is so great about the XX1 you can just choose on the day how you feel.
    Raising money, my friend broke his neck Mtbing, Please Share link. http://givealittle.co.nz/cause/elliottkeys/donations

  39. #39
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Quote Originally Posted by muzzanic View Post
    Hi having a 30 on the front of the XX1 group gives you about the same top end as having a 35 tooth ring up front on a 36-11 cassette.
    I forgot the XX1 went all the way down to a 10 cog vs 11 on most 1x10 setups.

    With that said, it looks to me like the 30t ring w/ 10-42 cassette (XX1) would have the same top end as 33t ring w/ 11-36 cassette (typical 1x10) ...

    30:10 = 3.00
    33:11 = 3.00

  40. #40
    Carbon & Ti rule
    Reputation: muzzanic's Avatar
    Join Date
    Apr 2009
    Posts
    5,397
    Quote Originally Posted by kfb66 View Post
    I forgot the XX1 went all the way down to a 10 cog vs 11 on most 1x10 setups.

    With that said, it looks to me like the 30t ring w/ 10-42 cassette (XX1) would have the same top end as 33t ring w/ 11-36 cassette (typical 1x10) ...

    30:10 = 3.00
    33:11 = 3.00
    It was early & I was half asleep, I ment to say that with the 32 front ring was like 35 on 36-11
    Raising money, my friend broke his neck Mtbing, Please Share link. http://givealittle.co.nz/cause/elliottkeys/donations

  41. #41
    mtbr member
    Reputation:
    Join Date
    Oct 2010
    Posts
    504
    Quote Originally Posted by muzzanic View Post
    It was early & I was half asleep, I ment to say that with the 32 front ring was like 35 on 36-11
    I figured that was probably a typo or honest mistake on your part. Over the past couple years I've found your feedback to be spot-on for the most part!

  42. #42
    mtbr member
    Reputation:
    Join Date
    Mar 2007
    Posts
    181
    Chris, what made you buy the carbon when you have SIR? Wanting to buy one or the other for SS.

  43. #43
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by Rone Turner View Post
    Chris, what made you buy the carbon when you have SIR? Wanting to buy one or the other for SS.
    I'm running the SIR single speed, and wanted a super lightweight, geared bike for endurance races. I raced my RIP in the Silver Rush 50 last year, and was really wanting a carbon HT by the end of the race!

    All three of the bikes will get plenty of time in the dirt! All depends on my mood and where I'm riding!

  44. #44
    mtbr member
    Reputation: csparks66's Avatar
    Join Date
    Apr 2009
    Posts
    86
    Chris, Just got my second RDO (small probs with first) had it set up very simular. except2x10xx weighed 21.4

    But i built this one to race SS. Just got it back today. Im not a fan of tensioners, but, well see. first ride tomorrow

    Stupid light your gonna love it.






  45. #45
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by csparks66 View Post
    Chris, Just got my second RDO (small probs with first) had it set up very simular. except2x10xx weighed 21.4

    But i built this one to race SS. Just got it back today. Im not a fan of tensioners, but, well see. first ride tomorrow

    Stupid light your gonna love it.
    Very nice! Better watch out though, she might take it from you!

    I am curious to see how it does SS. What does it weigh like this, 19-19.5 lbs?

  46. #46
    mtbr member
    Reputation: csparks66's Avatar
    Join Date
    Apr 2009
    Posts
    86
    Wow it rides really sweet set up with the "Paul Melvin" Feels no different than any other SS. I thought about getting the Air9 Carbon to run the EBB, but it is honestly a totally different bike, and I loved this one so much geared i will just run the melvin and be happy and comfy.

    I have it set up with a 34/20 right now, but will probabaly run a 19 for most AZ Races. Weighed just a hair under 20lbs before I put my Bellini Bell on!

    Chris, You know Jon Pettit (raced on your 4 man at pueblo a couple year ago) he is running XX1 and it is cool. You should dig it.

  47. #47
    Wicketed
    Reputation: swan lee's Avatar
    Join Date
    May 2006
    Posts
    558
    Did any of you guys put one of these frames on a scale before you built them up??? I'd be very interested to hear what the real-world weights are coming out as....
    'I've got a bike, you can ride it if you like. It's got a basket, a bell that rings, and things to make it look good' - Syd B

  48. #48
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Quote Originally Posted by swan lee View Post
    Did any of you guys put one of these frames on a scale before you built them up??? I'd be very interested to hear what the real-world weights are coming out as....
    My medium Air 9 RDO frame weighs 2.5 pounds. I was surprised by how light it is.

  49. #49
    mtbr member
    Reputation: limba's Avatar
    Join Date
    Jan 2004
    Posts
    2,939
    Just marking my place to see how it goes. Good luck with the new bike and XX1.

  50. #50
    mtbr member
    Reputation: chrisgardner73's Avatar
    Join Date
    Oct 2008
    Posts
    688
    Here's the current state of my build. Right now, it's kind of in limbo waiting on the rest of the parts. The bike, as it's built up right now, weighs in at 7 pounds on the dot.

    The XX1 kit that I posted before couldn't come home with me. My LBS sponsors our race team, and couldn't sell shop inventory for grassroots pricing. Those items have to come from our team order. So...I'll just have to wait 3-4 weeks for my XX1 stuff. I'm in no hurry though.
    Attached Thumbnails Attached Thumbnails Winter Project - Niner Air 9 RDO-556954_10200407332092748_222716607_n.jpg  


Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •