So, upgrading time again for the Sunn
Start spec :
Xircuit '97, size 50. Suntour fork, mavic rims laced on LX hubs, deore 9s crankset, shifters, v-brakes, RD & 11-32 cassette, XT top pull FD, kore bars, ritchey stubbies, look 110mm stem, kalloy seatpost, Fizik pavé saddle. generic pedals, XT...