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Imo it's not really worth putting 47-584 on a bike that takes 40-622 already. Might be if you want to go all monstercross and put something bigger than 50-584 on
Edited post cause I wrote it when still sleepy
Heldring-
True. The rational was to have plusher tyres without a massively big wheel. This and the 650b cool factor, obviously!
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Imo it's not really worth putting 47-584 on a bike that takes 40-622 already.
The difference is much bigger than you'd think, especially in term of weight.
When I went from 38mm 650b to 42mm 650b, the difference was nigh and day.
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The area of the cross section is pi times radius squared, so the difference between 40mm and 47mm alone is 49mm^2
Then multiply that with the circumference of the wheelVolume of a 700Cx40mm is 2454mm^3
Volume of a 65oBx47mm is 3318mm^3TL;DR It makes a huge difference.
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Imo it's not really worth putting 47-584 on a bike that takes 40-622 already.
Just realised that if we can feel the difference of 2mm from 23mm to 25mm, then what you mentioned is a massive difference.
cgg
edscoble
MisterMikkel
Yes! I found that you found it :) It's in my list too, though I'm not sure 700x40c clearance translates to 650x47b.