SG-X chainrings are a major technological advancement that enables super smooth front shifting under extreme heavy loads. Special teeth profiles, pick-up spikes and ramps make front derailleur shifts comparable to rear shifting smoothness. SG-X chainrings deliver smoother, quieter and quicker shifts….
– Shimano 130 PCD 105 5603 10 Speed Inner Chainring Chainrings – £19.49 (RRP – £)
