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  1. #1
    RoadBikeReview Member
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    650b X 38 on SL4 Disc Roubaix

    Panaracer Col de la Vie 650b/38s I picked up for $20 to see how 650b run and might fit. Been stalling on building the 650B disc wheels for lack of tires. So I built up the front and mounted up a Col de la Vie.

    The tire is 36.4mm wide mounted on a 19C rim. It is close to the fork on the sides, but do-able. 50lb air ought to soften that beotch up. ;)
    A 35x 650B would be mint-o-flex. ;)

    2.5mm each side clearance, plenty for fenders on top to crown. Only 1/8" less tall than 700x25C Pave Vitts. Interesting.... to me anyway


    Quote Originally Posted by Robt57/Me!
    Everything you read that I post is just '1' guy's opinion, try to sort it all out best you can. ;) I will try to add value in my posts, if I miss the mark please let me know using a little decorum.

  2. #2
    RoadBikeReview Member
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    Dec 2009
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    12

    650b on a Roubaix SL4

    Do you still run 650b wheels on your Roubaix? how big do you think you could go? I picked up a frame and was thinking about building it into a gravel bike for my wife with 650b's, not sure if I could or should just buy her a new bike? Thoughts?


    Quote Originally Posted by robt57 View Post
    Panaracer Col de la Vie 650b/38s I picked up for $20 to see how 650b run and might fit. Been stalling on building the 650B disc wheels for lack of tires. So I built up the front and mounted up a Col de la Vie.

    The tire is 36.4mm wide mounted on a 19C rim. It is close to the fork on the sides, but do-able. 50lb air ought to soften that beotch up. ;)
    A 35x 650B would be mint-o-flex. ;)

    2.5mm each side clearance, plenty for fenders on top to crown. Only 1/8" less tall than 700x25C Pave Vitts. Interesting.... to me anyway



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