Box One Shifter Clamp 31.8mm spare parts the larger ones are pinned

the larger ones are pinned to steel spiders

and chain paired to the durable Box Two cassette

8 shifter clamp is an accessory that converts any Box shifter to be compatible with modern drop-handlebars found on gravel

adding an extra tooth to each of the three highest gears

IMPORTANT NOTES

Box One Shifter Clamp 31.8mm spare parts the larger ones are pinnedThe Box One 31. 8 shifter clamp is an accessory that converts any Box shifter to be compatible with modern drop handlebars found on gravel, cyclocross, and commuter bikes. While these bikes traditionally come with clutchless 2 by drive trains, the addition of this clamp makes the conversion to a more user friendly and durable Prime 9 drive train affordable and simple.