Sram/Truvativ Chainring Bolt Sets Gravel Bike SHIMANO Di2 electronic shifting lets

SHIMANO Di2 electronic shifting lets you change from the big to small chainrings

Designed by internationally recognized design team frog

Built-in lens cloth for glasses

Removes both grip wax and klister

Road Freehub & end Caps (rear wheel only)

Sram/Truvativ Chainring Bolt Sets Gravel Bike SHIMANO Di2 electronic shifting letsUses 2 hex wrenches to tighten or loosen bolt nut Includes (5) 5mm broach bolts, (5) 6mm broach nuts, and (5) inner bolts: available in either steel or aluminum (8. 5mm) For 4 arm and 5 arm cranks, Road and Mountain Triple Alloy material: alloy outer steel inner Double Single DH ring style: Use without washers for two chainrings, with washers for one DH ring XX double version uses Torx T25 broaches for a 4 arm crank XX X. 0 X. 9 X. 7 versions do not