TRP CK-9050 EVO Crankset - 170mm 12-Speed For 68/73mm Frame BB DM CINCH Chainring Interface 30mm Spindle Carbon BLK/Silver Model=Soundwave BMX Bike The inner PU protector is

The inner PU protector is rated for motorsport protection and is shaped to be form fitting

Select materials keep them cool and comfortable and you can customize the protection with the removable high impact guards

The Super Record 12-Speed cassette features thinner sprockets tighter spaces and space-saving dimensions that are the same as those of the 11-Speed versions

8 Color Black Defined Color Black Length 50 Material Alloy S

TRP CK-9050 EVO Crankset - 170mm 12-Speed For 68/73mm Frame BB DM CINCH Chainring Interface 30mm Spindle Carbon BLK/Silver Model=Soundwave BMX Bike The inner PU protector isThe TRP CK 9050 EVO crankset features high performance carbon layup crankarm construction for strength and weight saving with a 30mm spindle diameter to provide exceptional power transfer. High performance carbon layup provides strength and weight savings 30mm spindle diameter is torsionally rigid for exceptional power transfer For use with frames that have 68mm or 73mm bottom bracket shells 52mm Chainline achieved with TRP CR M9050 3mm offset