Quick view Shimano Shimano M780 Chainring 42t Shimano M780 Chainring 42tShimano M780 series XT 10 speed 44t chainring - unique to the M780 XT chainset this hard wearing genuine Shimano replacement is becoming extremely hard to find. This one is new old stock from our sister repair business. The item... £40.00 MSRP: Out of stock Compare