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  1. #1
    mtbr member
    Join Date
    Mar 2012

    Stumpjumper FSR 29 conversion to 27.5+

    I have a 2012 Stumpjumper FSR 29 and want to convert it to a 27.5+ bike. I saw a youtube video of someone that did it to a camber and was successful. Just wanted to see if anyone on here has done the conversion and your thoughts on it.

    Ive been riding 27.5 for about two years and my backup bike is the stumpjumper 29. and I really dont like the big wheels, specially for turning just feels super awkward. Anyhow I was thinking of selling it but then thought of trying to convert it. It has 150mm of front travel, was thinking of putting on some 27.5 rims and 2.8 tires.

  2. #2
    JCL is online now
    mtbr member
    Join Date
    Oct 2006
    Define awkward.

    Ultimately I think you have a problem with the geo of the bike rather than the wheelsize. If you go Plus on the front your tire OD will only be about 10mm less and geometry will hardly change.

    Instead I would recommend lengthening the fork by 20mm and tracking down an Evo link. Or just sell the bike. With the above tweaks it is a hugely capable bike but it has a long wheelbase so suits a rider who is happy to put in big inputs in tight terrain. Just like a DH bike.
    Last edited by JCL; 02-10-2017 at 05:48 PM.

  3. #3
    Ski during the off-season
    Reputation: journey's Avatar
    Join Date
    Jan 2004
    In the 27.5 compatibility thread, there are several examples of SJ 29'ers running with 27.5+ wheels. Here is one:
    27.5+ Frame Compatibility Thread. Post your setup! - Page 4-

    I have not checked back in a while, but was I am about to revisit the topic myself...

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