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  1. #101
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    Awesome! I love the weight......how about a quick run down on components as I'm interested in the same goal. Thanks

  2. #102
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    fishman473: might it be more likely the bounce is coming from the saddle rails? with the saddle set so far back on the rails, its going to make it act as a cantilever.... still, a stiffer post or one with longer rail clamps may help? sweet bike btw. :-)~

  3. #103
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    here's my build list. Some of the weights are measured, some are claimed, some are pulled from the interweb, but they must be pretty close cause the final weight is almost exactly what I measured. Then again, I don't think this take into account the ridiculous stack of headset spacers I have above my stem.

    A couple thoughts:

    - You could drop perhaps a quarter pound more if you went with a lighter seatpost and saddle.

    - As I said in a previous post a Carver Carbon O'Beast fork would save about 155 grams.

    - A few grams could be saved with a lighter seat clamp and exchanging some steel bolts for Al/Ti.

    - I'm sure there's a lighter crankset option out there but this was the cheapest option for me, and not too heavy.

    - Went with brass nipples due to erosion concerns. Obviously if weight was your main target, Marge Light rims would save substantial weight over the Rolling Darylls (160g per wheel).

    - If you can find some UL Casing Larrys you could save another 200 g compared to my build.

    - I removed the headset badge, bottle cage bolts and drilled a bunch more holes in the rims. Total weight loss through these no/low-cost means was over 150 grams.

    - Q-tubes Superlights could save you another 50-60 grams of rotating weight, but they were out of stock when I tried to order them. Tubeless set-ups are actually heavier than these large-volume standard MTB tubes.

    - Some people aren't going to want to loose the front brake. it saves well over a pound and In the 30 miles I have ridden this bike so far it hasn't been an issue. I am planning on getting one set up with a hing on the bar clamp so I can install/remove it easily. The one-brake set-up might be race day only, but in my past experience I find that the snow acts as a pretty good brake on its own.

    In conclusion, a sub-25 lbs fat bike is now entirely possible, depends on how much you are willing to spend and what performance compromises you are willing to make.
    Attached Thumbnails Attached Thumbnails Salsa Beargrease-beargreasepaperbuild.jpg  

    Last edited by FishMan473; 12-20-2012 at 09:15 PM.
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  4. #104
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    FishMan473,

    Regarding your Phil Wood BB, how long is the spindle?

    I'm trying to puzzle out my Beargrease drivetrain and I'm wondering how your setup compares to the 100mm x 148mm FSA BB I'm going to try to use (because it's on hand).

  5. #105
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    Do you know the weight of the pro moto 2 stem ?

  6. #106
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    After mounting my Escalators I've gotten my fully geared (size large) beargrease down to 25.89lbs. That's with tubes and a 2x10 drivetrain and pedals

    If I was to tweek the parts mix a bit I am confident that I could shave another full pound from the total weight. In fact, after winter's over I may do just that and make it my full time XC bike.

  7. #107
    viva la v-brakes!
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    Quote Originally Posted by FrY10cK View Post
    FishMan473,

    Regarding your Phil Wood BB, how long is the spindle?

    I'm trying to puzzle out my Beargrease drivetrain and I'm wondering how your setup compares to the 100mm x 148mm FSA BB I'm going to try to use (because it's on hand).
    I had my shop order my BB for me so I'm not sure on the measurements, but I know its the shortest one they offer, I wanted the lowest q-factor possible. So I guess you can check their website to see which one I have. In the big cog and small ring it clears the tire with >5mm to spare so I think its all good. I am running it set up a little bit towards the drive side with a few theads of the retainer ring sticking out on that side, but the crank arms are exactly the same distance from the chain stays, as far as I can tell just by looking at it anyway. I want to say that there is an option for an off-set and a non-offset 100mm Phil Wood BB, I would suggest getting the offset, assuming the offset is to the drive side.

    I was not aware that FSA offered a fatbike BB, not a square taper anyway, I saw that the FSA Platinum DH is available for ISIS cranksets.

    I should also mention I am running 2x9 with a 32/22 up front. If I had it to do again I'd probably go with a 34 big ring, this bike is surprisingly fast on hard surfaces!
    Last edited by FishMan473; 12-21-2012 at 07:41 AM.
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  8. #108
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    BTW, does anyone know if you can fit a 100mm rim in a Beargrease? Is that going to make the tire too big to fit in the frame/around the drivetrain? I have a friend running 80 up front and 100 in back with 3.7-4.0 tires on a Fatback and it seems like a pretty smart set-up.
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  9. #109
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    Quote Originally Posted by FishMan473 View Post
    I was not aware that FSA offered a fatbike BB, not a square taper anyway, I saw that the FSA Platinum DH is available for ISIS cranksets.

    I should also mention I am running 2x9 with a 32/22 up front. If I had it to do again I'd probably go with a 34 big ring, this bike is surprisingly fast on hard surfaces!
    All I have is road bike parts except for the 100mm x 148mm Isis BB. So I'm going to try 1 x something drivetrain, FSA Isis crank with 34t chain ring. Maybe Sram XX1 or there's a company that makes giant MTB cogs you can buy one at a time. I have the bookmark somewhere but I'm not going to look for it unless somebody really wants it.
    Last edited by FrY10cK; 12-23-2012 at 08:12 AM.

  10. #110
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    FishMan473,

    Here's the relevant page from the Salsa website:
    Salsa Cycles | Bikes | Beargrease Frameset

    It says,
    Rear Tire Clearance
    Designed for 26 x 4.0" tires on 82mm rims with full drivetrain, 4.0" tires or BFL on 100mm rims with modified drivetrain (emphasis mine). Not compatible with Surly Lou or Knard tires

    Fork Tire Clearance
    26 x 4.8" on 100mm rims

  11. #111
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    Quote Originally Posted by FrY10cK View Post
    FishMan473,

    Here's the relevant page from the Salsa website:
    Salsa Cycles | Bikes | Beargrease Frameset

    It says,
    Bummer. Just for shits and giggles I'm going to grab his wheel at some point and see if it fits in my frame. I can't imagine the Clown Shoes would make the tire that much wider where it matters for frame/chain clearance.
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  12. #112
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    The quote from Salsa says not compatible with Lou or Knard tires. Do they mean Lou or Bud tires? I thought the Knards were "normal" fat sized. I was planning on running Knards front and rear on my BG.

  13. #113
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    deuxdiesel,

    The way I read it, Lou and Knard wil not fit on the rear of a Beargrease. The fork will take up to a 4.8" tire on a 100mm rim.

    I'm thinking about running a 4.7" BFL on 82mm Rolling Darryl up front for float and 4.0" Husker Du on 65mm Marge LIte out back for bite.

  14. #114
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    Yes, that's how it reads, but I wonder if they are talking about the 29" Knard? The 26 x 3.8 can't be that wide, can they?

  15. #115
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    fatbikes.com says:
    You could say these tires are 4.8 Nates ....
    Fatbikes.com Surly Lou 4.8" 120tpi Folding Tire
    Last edited by FrY10cK; 12-24-2012 at 05:23 AM.

  16. #116
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    Quote Originally Posted by Scottytheoneandonly View Post
    After mounting my Escalators I've gotten my fully geared (size large) beargrease down to 25.89lbs. That's with tubes and a 2x10 drivetrain and pedals

    If I was to tweek the parts mix a bit I am confident that I could shave another full pound from the total weight. In fact, after winter's over I may do just that and make it my full time XC bike.
    Do you have a picture of your build or a parts list?

  17. #117
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    Quote Originally Posted by Twebb View Post
    Do you have a picture of your build or a parts list?
    pic in the Beargrease thread on page 2..

    Beargrease frameset
    Schlick Northpaw rims laced to Hope hubs
    Escalator tires w/QBP downhill tubes
    Salsa skewers
    Cane Creek 110 headset
    XTR deraileurs, shifters, brake levers/calipers
    XT rotors, cassette, chain
    eThirteen double crankset
    Salsa pro moto stem
    Salsa pro moto bar
    Thomson elite post (setback)
    Sella Italia Flite carbon saddle
    crank bros 3 pedals


    I could lighten her up a bit. might get an SLR saddle when winter's over. XTR Rotors, Cassette & Chain will shave some weight. My ethirteen crank is the old tripple. If I were to upgrade to the new double specific model I'd shave some more weight.
    Last edited by Scottytheoneandonly; 12-24-2012 at 12:22 PM.

  18. #118
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  19. #119
    nothing to see here
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    Sweet ride Shamus.

    Square taper bb or external?
    I see hills.

    I want to climb them.

  20. #120
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    Isis bb

    Wife has Middleburs with external bb on her Mukluk

  21. #121
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    Sort of forgot about the isis. Cool.
    I see hills.

    I want to climb them.

  22. #122
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    Quote Originally Posted by ShamusWave View Post
    Isis bb

    Wife has Middleburs with external bb on her Mukluk
    Hm. Do you happen to know weight of your crankset w/bb? I have something in the making, and I'm pondering the options

  23. #123
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    Good day to ride!

    Salsa Beargrease-imageuploadedbytapatalk1356891226.729491.jpg

  24. #124
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    Hey Scotty how do you like the Schlick wheel setup? I'm think of the same for my hard pack wheel set and keeping the HRD's for floaty loose stuff. What do they do to the footprint of the escalators? Width? Thanks for the help and great build you have there!

  25. #125
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    A few more upgrades:

    Formula R1 racing brakes
    Cane Creek 110 headset
    SRAM X9 shifters

    Salsa Beargrease-imageuploadedbytapatalk1357338444.596209.jpg
    Salsa Beargrease-imageuploadedbytapatalk1357338464.343565.jpg
    Salsa Beargrease-imageuploadedbytapatalk1357338486.676974.jpg
    Salsa Beargrease-imageuploadedbytapatalk1357338519.846211.jpgSalsa Beargrease-imageuploadedbytapatalk1357338538.479519.jpg

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