Campagnolo Record 10 Speed ChainCampagnolo's Record 10 speed Ultra Narrow chain is just 5. 9 mm wide. Owing to its dimensions, the new version is lighter and quieter and facilitates adjustment of the rear derailleur. Chain links and pins are hollow so that the chain weighs only 255g in total. The tests run in Campagnolo's specialist laboratories have shown that traction force, pin retention force, wear, resistance to stretch, torsion and flection are the same as for the generation