-
Just for the sake of the discussion I’ve compared the weight of 650b and 700c rims:
Weight 425g/650B, 475g/700C for Kinlin TL-23
I doubt you’ll be able to find a 650b 42 mm tire that weights only 50g more then compareable 700c 28mm tire. 100-150g difference per tire would be a nice score I’d assume?So the weight of the wheels being roughly the same is perhaps a myth?
There’s also inner tube and shorter spokes weight difference that should be taken into account. Wonder how much that would be? ;)
EDIT: Regarding rolling resistance - how come a wider tire run with lower pressure has same rolling resistance then a 28mm tire with higher pressure?
Pawlus-
So the weight of the wheels being roughly the same is perhaps a myth?
Not in my experience.
Making the jump to tubeless at the same time helps as big 27.5 tubes aren’t light. And you could go weight weenie to a greater degree on a smaller/stronger wheel. But overall it’s ~ 100g a wheel or thereabouts. Nothing you’re going to notice.
EDIT: Regarding rolling resistance - how come a wider tire run with lower pressure has same rolling resistance then a 28mm tire with higher pressure?
miro_o
Wheel weight should be about the same, as is rolling resistance ..... about the same.
Effectively slightly lower gearing and less cetrifugal force perhaps (if overall diameter is smaller on the 650b setup),
Park life.