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Topic starter
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 7:20 pm
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 7:49 pm
Topic starter
Could do. But there's beer in the fridge:)
Thanks for confirming though.
Posted : 09/08/2013 8:02 pm