Trying to find info about belt and pulley on our bikes because im using 230 avon tyre and want do pulley swap to Barons
230 avon tyre dont have enough clearence to mudguard and we need trim it.
If i try use front pulley by Baron it has bigger diameter and, if i calculate right, would shift rear wheel to front by 4.4mm. Thats impossible.
If we get jus rear pulley by Baron (damn, expensive thing) rear wheel will move 9mm to the rear.
So if we combine 2 pulleys we will shift rear wheel y 4.5mm rear.
Thats good, but expensive rear pulley makes thing bad, and dont solve problem with trimming mudguard.
So solution is to get custom belts.
Stock is 14m 153 tooth belt. Profile seems like HTD.
I found 1 supplier in China (yeah, China, but i work with them before, good belts, really).
They can do 20mm width 14mm pitch HTD belt with fiberglass reinforce in 154, 156 and 157 teeth.
Belt would cost only 32$
With biggest 157T belt and both pulley rear wheel would come back for 33mm!
There would be enogh clearence for mudguard, little bigger wheelbase and possibility to swap pulleys.