Details: The 7075 T6 aluminium alloy chainwheels are 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life. Renthals combination of a very high strength base material and an exceptionally hardwearing surface result in significantly increased chainwheel life….
– Renthal Ultralite SR4 Chain Ring Chainrings – £31.99 (RRP – £)
