Dicky wrote:I fitted 35 to mine and regretting it. ( not regretting the purchase though it’s nice to ride but tops out too soon) Running 18/47 on a Rapido with 60 stroke crank and reed valve but not a revvy pipe (TSR Evo). Seems I got my sums wrong! Looking to fit 34 but given the low % rise of the box I’m wondering whether to just puta a 19 on the front (need a cog, chain and pull down tensioner or possibly 19/46. The cog would be cheaper though but more of a pain if I just want to suck it and see!
I have the same set up 18/47 Rapido 250 with the 34 tooth and must admit although a small % rise (need to be careful of going too tall) it is a joy to ride, 4th is perfect for those slight inclines and head winds and 5th on the straight is no struggle at all