Box One BMX Disc Brake Adapter (Standard Dropout) chainring-bolts 8mm MATERIAL: 6061-T6 Aluminum PROCESS:

8mm MATERIAL: 6061-T6 Aluminum PROCESS: Extruded RISE: 0° STACK HEIGHT: 32mm STEERER TUBE: 1-1/8" WEIGHT: 305 grams 10

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TIRE FIT: 20x1

The Box One Carbon Handlebars are made with uni-directional carbon fiber for one of the lightest handlebars out there

you might need to add additional washers

Box One BMX Disc Brake Adapter (Standard Dropout) chainring-bolts 8mm MATERIAL: 6061-T6 Aluminum PROCESS:Box One Bmx Disc Brake Adapter (Standard Dropout) was designed specifically for frames not necessarily intended to be compatible with a disc brake setup. Compatible with 3 10mm hubs, but please read the product specifications and manual carefully before purchasing as this is not universally compatible. Also, do note the 150 lb. rider weight limit. Product Manual Compatibility Box Three Pro Disc Hub Box Three Brake Caliper Box Three 140mm Disc Brake