Box One Prime 9 Chain 126L DLC derailleur The action on the shifter

The action on the shifter is limited to one downshift per lever swing

We've chosen to modernize the 8-speed in much the same way we did the 9-speed for Prime 9

Installation Video

and SRAM setups

There are also the "Compact" variations that are fitted out with upright shift levers

Box One Prime 9 Chain 126L DLC derailleur The action on the shifterThe Box One chain is protected by our dual coating. We start with Nickel plating which aids in corrosion resistance and then top it off with the "Diamond Like Carbon" layer. The DLC is as fancy as it sounds; a synthetic diamond nano coating that turns up the volume on hardness, wear resistance, and slickness. All Prime 9 chains have chamfered shifting edges, solid plates and solid pins to safeguard durability. Our unique inner link spacing is