Wheel geekery
 

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[Closed] Wheel geekery

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Just been trying to fix my shabby old bike computer - got it all functioning and am trying to programme the wheel circumference in.

Does 2340mm sound right for a 29er wheel with 2.25" Ralph's on?


 
Posted : 09/08/2013 6:20 pm
Posts: 4788
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well...

the rim bead is 622mm dia, 2.25" ralph is 54mm wide/tall + say 8mm for nobs

so 622+54+54+8 = 738mm diameter x 3.142 = 2318.796mm so your 2340mm not far out...

you could of course sit on the bike and measure the actual distance per wheel turn on the floor...


 
Posted : 09/08/2013 6:49 pm
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Topic starter
 

Could do. But there's beer in the fridge:)

Thanks for confirming though.


 
Posted : 09/08/2013 7:02 pm

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