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  1. #1
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    27.5 Rims stiffer than 29?

    I have heard this but no hard evidence to back it up?

  2. #2
    NedwannaB
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    Quote Originally Posted by Rugerfan777 View Post
    I have heard this but no hard evidence to back it up?
    Not if they're built right. Ask mikesee @lacemine29!
    Wait whuuut, who did he tell you that!?!?....

  3. #3
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    Yes, torque exerted on the wheel increases linearly with radius. So all things equal, it will bend more under the same lateral force. You'd have to use stiffer materials to counteract this.

  4. #4
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    Yes smaller wheels are stiffer all else equal.

    Sent from my Nexus 6 using Tapatalk

  5. #5
    NedwannaB
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    Quote Originally Posted by BikePilot1 View Post
    Yes smaller wheels are stiffer all else equal.

    Sent from my Nexus 6 using Tapatalk
    C'mon guys. Same can be said for 26->27.5 wheels. What really is the point to be driven here? Yeah 26" was the DH wheel size at one time. Then some rebels brought 650b to the game. WHOAH....then came Gregg Minnar with his wagon wheels. It all depends on what bike and what kind of trails you ride!
    Wait whuuut, who did he tell you that!?!?....

  6. #6
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    Quote Originally Posted by JMac47 View Post
    C'mon guys. Same can be said for 26->27.5 wheels.
    Yes, because physics.

    Quote Originally Posted by JMac47 View Post
    What really is the point to be driven here?
    That 27.5 rims are stiffer than 29. That's the question OP asked.

  7. #7
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    The literal answer to the question is yes, the smaller the diameter, the stiffer the wheel, all other things being equal. However, how stiff is stiff enough? Wheels can be built "stiff enough" for most applications in any of the currently common wheelsizes. An experienced wheel builder with take variables into consideration and plan accordingly, rider weight, riding style and terrain, etc.

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