Box Three Pro Front 20 x 1.75" 10mm Wheel box one CHEST WIDTH (inches) LENGTH (inches)

CHEST WIDTH (inches) LENGTH (inches) S 20 ½ 29 M 21 ½ 30 L 23 ½ 31 XL 25 ½ 32 2XL 27 33

Upgrade your drivetrain with the Box One Oversized 20mm Cassette Spacer Kit

They have hollow

these drivers are designed only for use with Quantums and are not compatible with other hubs

they also fit most 20mm hubs on the market

Box Three Pro Front 20 x 1.75" 10mm Wheel box one CHEST WIDTH (inches) LENGTH (inches)Hand built in Southern California, Box Three Wheels are made with Box One front rims, and 36 hole, Box Three 10mm Front Hub laced 3 cross front with 14 gauge stainless steel spokes and brass nipples. Our Box Three Pro Front Hub offers two precision sealed 6902 bearings between a forged 6061 aluminum hub shell and a steel 10mm axle and hardware. This creates a great hub for anyone looking for a solid, no nonsense front hub on a budget. Box One Alloy