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  1. #1
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    please help to save some weight on my 27.5 focus raven 2015.

    Frame: 2015 raven 27r full carbon
    Fork: 2016 Fox 32 factory 3 position w/adj (no remote)
    Crankset: Rotor Rex 2.2 w/38t, 28t noq
    Front derailleur: xtr m9025
    Rear derailleur: xtr m9000
    Cassette: xtr m9000
    Chain: Shimano CN-HG900
    Wheel: DT xr1501 15qr, 9mm quick release
    Brakes: Magura mt4 w/180mm, 160mm storm sl rotors
    Pedal: Xpedo spry
    Stem, Bar, seat post: Focus concept ex.
    Seat: Fizik tundra 2 maganese.
    My goal is to get under 20lbs. Any suggestion?
    Thanks!

  2. #2
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    You haven't mentioned your budget . I would definitely get a lighter fork, stem, bar, seatpost and saddle . Everything else seems pretty good . If you can stretch get a lighter wheelset .

  3. #3
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    Thanks mate, my current budget is about usd1300.

  4. #4
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    What is the current weight?

  5. #5
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    current weight is 21.8lbs with pedals.

  6. #6
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    Quote Originally Posted by long19000 View Post
    current weight is 21.8lbs with pedals.
    Glad you are using pedals.

    I'd recommend a move to 1X gearing.

  7. #7
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    It's already under 10kg, which is a nice round number, and very light. I suggest you just go ride it.

  8. #8
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    ^^^No $hit...but this is the WW forum....

    Going 1x is the first thing I would do. Are the stock bar/stem/seatpost lightweight? Need to take them off and weigh them. Make a spreadsheet..its the only way to really figure this out. The fork is a lot of $$ for not a lot of weight reduction, I doubt that Fox is v. heavy comparibly. Again, break it down, weigh your parts, and start a spreadsheet.
    Geologist by trade...bicycle mechanic (former) by the grace of God!

    2018 Niner RKT 9 RDO - enduro are #@$%

  9. #9
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    Quote Originally Posted by TiGeo View Post
    ^^^No $hit...but this is the WW forum....
    Ya, but some of you guys are like meth addicts or anorexics.

    He's already got an $800 3.5lb XC fork.

  10. #10
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    Doesn't matter about cost .The parts have to be light damn it

  11. #11
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    Quote Originally Posted by MudSnow View Post
    Ya, but some of you guys are like meth addicts or anorexics.

    He's already got an $800 3.5lb XC fork.
    I was being sarcastic. Yes, the bike is fine the way it is, but he is asking about loosing weight...so folks are answering him. I would NEVER replace that fork to save less than 1/4 of a pound.
    Geologist by trade...bicycle mechanic (former) by the grace of God!

    2018 Niner RKT 9 RDO - enduro are #@$%

  12. #12
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    Actually, the "starting weight" (as per Fox) is 1600g on that fork, which is pretty good IMO. That said, "starting weight" probably means a 26" fork with 100mm travel. Certainly the larger formats and travel would weigh more.

    Another quick hit - the 180mm rotor. I suspect most people can get away with 160/160, and the fork itself may natively support 160mm up front without an adapter. (If not, and you'd need an adapter to run 160mm, then ignore this.)

  13. #13
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    After some searching, I'm considering upgrading the brakes to formula r1 racing and kcnc disc rotor, remove the small chain ring to use 1x system , use fsa k-force stem/bar/seatpost.
    However, it seem hard to find a narrow-wide 5 bolt 104mm 38t chainring, any suggestion.
    Thanks!

  14. #14
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    Quote Originally Posted by long19000 View Post
    After some searching, I'm considering upgrading the brakes to formula r1 racing and kcnc disc rotor, remove the small chain ring to use 1x system , use fsa k-force stem/bar/seatpost.
    However, it seem hard to find a narrow-wide 5 bolt 104mm 38t chainring, any suggestion.
    Thanks!
    I was about to suggest the Formula brakes, and saw you last post .

    Concerning the chainring, are you sure its a 104mm BCD? Rotor REX 2.2 is listed as 110mm BCD.


    P.S.- I have the Formula RX and I like them, I'm guessing the R1 are even better.

  15. #15
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    Quote Originally Posted by Aglo View Post
    I was about to suggest the Formula brakes, and saw you last post .

    Concerning the chainring, are you sure its a 104mm BCD? Rotor REX 2.2 is listed as 110mm BCD.


    P.S.- I have the Formula RX and I like them, I'm guessing the R1 are even better.
    Looks like I've got it wrong, 110bcd it is.
    So, any suggestion on the 5bolts 38t chainring? Thanks!

  16. #16
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    Quote Originally Posted by long19000 View Post
    After some searching, I'm considering upgrading the brakes to formula r1 racing and kcnc disc rotor, remove the small chain ring to use 1x system , use fsa k-force stem/bar/seatpost.
    However, it seem hard to find a narrow-wide 5 bolt 104mm 38t chainring, any suggestion.
    Thanks!
    I have a new 2015 R1 Racing set that I'm thinking of selling (not using it), so let me know. The KCNCs are good, light, and aren't expensive.

  17. #17
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    Are you sure you want 38t on a 1x? I only use 38t with street slicks on pavement, for commuting.

  18. #18
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    Quote Originally Posted by MudSnow View Post
    Are you sure you want 38t on a 1x? I only use 38t with street slicks on pavement, for commuting.
    Good eye. 38T is tough, and I'm not aware of many > 36T, besides you might run into fit limitations anyway. (?)

  19. #19
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  20. #20
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    Quote Originally Posted by diskox View Post
    44T ? Good luck with that.

  21. #21
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    you can choose from 34T to 48T ? disregard copy on key visual

  22. #22
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    Quote Originally Posted by diskox View Post
    you can choose from 34T to 48T ? disregard copy on key visual
    I realize that, , but still unsure where the OP got his 38T request from. Would be very curious to know his racing background, and the intended terrain. As per MudSnow it's probably worth confirming that it isn't a miscalculation.

  23. #23
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    I won't go in to that. I just offered solution in regard to 110BCD rings

    For example I have 40T with 10-42 cassette on my CX bike which I use for commute 90% of time and some light XC tracks + one track of 10km of 12% incline.

  24. #24
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    Yep, all depends on intended use, terrain, and certainly legs. I'm only double-checking as it seems like this is the OP's first move to 1X - at least that's how I'm reading it.

  25. #25
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    If it's any consolation i have 43t on my race bike

  26. #26
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    Thanks for the help!
    I get a AM Bike which has a 1x set up with 36t, so I think 38t for a crosscountry bike should be ideal.

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