Cycleway town
Join Date: Jul 2014
Location: Milton Keynes, England
Posts: 1,402
Bikes: 2.6kw GT LTS e-tandem, 250w Voodoo, 250w solar recumbent trike, 3-speed shopper, Merlin ol/skl mtb, 80cc Ellswick
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 569 Post(s)
On fatter tyres it can give problems around the valve, where the tube can't stretch as much.
I have a 24x1.5-1.9 tube in a 24x2.35 tyre, and I have to whack the pressure right up to get the sidewall filled out at the valve.
That said, I have 2.1 tubes in 2.35 tyres (this time 26s) with 2in wide rims, and didn't notice the same problem there.