KMC S1 Chain - Single Speed 1/2" x 1/8 Brown/Brown Bulk 500 Foot Roll Model=Switch Headset Spacers }Shimano Dura-Ace ST-R9270F-L Di2 Shift/Brake

}Shimano Dura-Ace ST-R9270F-L Di2 Shift/Brake Lever with BR-R9270 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Black

Brake Caliper Type Post Mount Mount | Rotor Size Front Flat | 160 Rotor

Also works on other places of your bike including hubs cables and jockey wheels

Does not deform

Mechanical control with included L1 lever

KMC S1 Chain - Single Speed 1/2" x 1/8 Brown/Brown Bulk 500 Foot Roll Model=Switch Headset Spacers }Shimano Dura-Ace ST-R9270F-L Di2 Shift/BrakeThe KMC S1 chain is a rugged 1 8" chain that is designed to perfectly pair with most single speed drivetrains. Specially designed for single speed drivetrains 1 2" x 1 8" link size Drivetrain Speeds Single Speed 1 2" x 1 8" Color Brown Half Link Chain No Defined Color Brown