New Light Bike Build.-
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  1. #1
    mtbr member
    Join Date
    Apr 2019

    New Light Bike Build.

    I got a China Frame off of eBay and building my first Brand new bike. I have always been a WW with bikes. I am trying to build a new sub 20 lbs hardtail xc bike.

    What is a good drivetrain that is 11s but doesn't break the bank? I am looking at box two 11s drivetrain.

    I am looking at light bicycle wheels I have read mixed review on the mtb wheels. Are there any strong opinions about them? I am looking at the 29C06.

  2. #2
    Elitest thrill junkie
    Reputation: Jayem's Avatar
    Join Date
    Jul 2005
    If it was me and I was trying to keep the weight down, I'd get a 1x11 crank, but 1x10 drivetrain system (will work fine). Something like an ultegra 10spd 11-28 or 12-30 cassette can be had pretty cheap ($50) and is light, 105 isn't bad and only $34. 105 rear 10spd derailleur is $47 and 243gm. With a light hardtail, you don't need mega gears IME.

    There are no cheap and light 11spd cassettes, they are mega money for the ones that are fairly light. I do 10 spd for my summer commuting drivetrain on my fatbike.

    I plan to stock up on 10spd parts at the bike swap next week for this reason.
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  3. #3
    mtbr member
    Reputation: RS VR6's Avatar
    Join Date
    Mar 2007
    The Box parts aren't particular lightweight...especially the cassette.

    I had a China build and got it down to 19.7lbs. I used a XX1 crank, X0 shifter and derailleur.

    You can run this 10sp cassette (324gr) with a 11sp Shimano derailleur and 10sp shifter.

  4. #4
    mtbr member
    Reputation: ASiameseCat's Avatar
    Join Date
    Aug 2011
    I can't comment about the drive train but I can chime in the on the light bicycle wheel. I ordered a front RM29C06 Flyweight wheel with a 28H DT Swiss 350 hub, CX ray spokes, and brass nipples. It came out to 637g and even though I have only about 70 miles on it so far, it is a nicely built and stiff wheel.

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