The Box One Cassette Spacer Kit is extruded and CNC-machined from 6061-T6 aluminum and features a super lightweight minimalist design. Packaged in 4-piece kits which provide 1 to 10 millimeters of spacing adjustment to dial in that chain line.

FEATURES

– Adjustable from 1mm to 10mm for Adjusting Chainline
– Extremely Lightweight XO Skeleton Design

SPECIFICATIONS
– Material: 6061-T6 Aluminum
– Extruded & CNC Machined
– Anodized Finish
– Spacing: 1-10mm (1mm [2], 3mm [1], 5mm [1])
– Driver: HG Freehub Body