I have two sets of wheels both with an internal rim width of 20mm
I’ve been running 28s in one set and 25s in the other.
Looking around on line there are various contradictions - some sites say 28s are fine and other say 25s are the maximum.
Anyone here advise please?
Tyres are Conti 4000.
Thanks.
28s will be fine. We were all running 2.1" MTB tyres on 17mm rims not that long ago
I'm running 35c on 14mm internal rims, they've been fine.
They’re perfectly fine, but for optimal aero effects the tyres are supposed to be within 105% of the outer rim width.
As above though it wasn’t that long ago MTB rim widths were super narrow and road rim widths were 15mm also.
25mm GP4000S IIs are really ~27mm (as are Grand Sport Races), fine on 20mm rims.
Better be OK, I'm going 19mm internal, 28mm tyres on my new set.
Thanks guys
I've a set of Kinesis Crosslight rims that are 19mm internal. The sticker on the rim states recommend tyre width 28mm - 62mm. I'd happily run 28s on a 20mm internal width rim.