Has only been ridden a handful of times. 11-28T Cassette, 50/34T Chainrings, 172.5mm Long Crank Arms. The bike has just been fully serviced and is running great. Crabon Frame & Fork & Seatpost – Shimano 105 2×11 Groupset – Shimano RS11 Wheelset – Boardman Finishing Kit – Vittoria Zaffiro Pro 25c Tyres Collection from our Uckfield store, or postal options available upon checkout.