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  1. #1
    mtbr member
    Reputation: mwandrusz's Avatar
    Join Date
    Apr 2009

    HDR 650b 130mm VS. HDR (shimmed) 150mm- NEED COMPARISON!!

    So far all of the hype has been pretty much limited to the 130mm HDR 650b. The mention of the option to shim the shock and ride in the longer travel setting is listed on Ibis' website, bottom bracket heights discussed ad nauseam on the forum, but no direct comparison reviews.

    As someone who would like to purchase an HDR very soon, I'm weighing both options, and would like to see some feedback from testers on how these setups compare.

    Hans- Anything coming soon? This would probably help me and a multitude of others with the decision.

  2. #2
    mtbr member
    Join Date
    Aug 2008
    mwandrusz - Until we get some more reviews/bikes in the wild your best insight maybe to look at HD160 and HD140 conversion feedback. The geo is identical between the HDR and HD in 160 650B mode, as is the rear travel ... etc, so it will ride pretty much as it does today when converted.

    Derby's thread is the best place to start:

    650b Mojo HD ... Heavy Duty

    The HDR130 geo looks sweet out of the box with a 140mm fork (lowered Sweep) which I think is that configs sweet spot and will be a great trail bike that can be ridden hard. Throw a Velvet 650B fork on it instead and the geo is bang on with a Solo as a sic endurance bike or one that will just rails corners, berms and be a ton of fun. The bigger shimmed 8.5x2.5 shock with or without offset bushings to me is a better fit with a 150 or 160mm fork (Pike, Sweep) to balance out of the suspension but you lose rear tire clearance. I'd use offset bushings because I hate tall BBs at the expense of travel.

    So it kinda depends on how much travel you need for your trails, what BB height works for where you ride and how big of rear tire you want/need. Historically the bike feels really different built up in each mode independent of 26 or 650B. Can't see why that changes in any way. It's a great bike that just got better, hard parts figuring how to build it up to get what you want out of it.

    I've had my HD160 for ~ 4 yrs and ridden both HD140 650B and HD160 650B converted bikes. Still waiting to test a HDR in the wild in any form though. Hope that helps.

    Any sufficiently advanced technology is indistinguishable from magic
    - Arthur C. Clarke

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