The Box One Chain Tensioners are designed with precision adjustment in mind with laser-etched adjustment increment markings allowing you to quickly and reliably achieve the same set up every time you remove/replace your wheel. Features an entire 45mm of adjustment and strong, stainless steel hardware.
FEATURES
- New and Improved
- 45mm of Adjustment
- XO Skeleton Design
- Dual-Sided Adjustment Grid
- Dual-Color Adjustment Block
SPECIFICATIONS
- AXLE SIZE: 10mm (3/8″) only
- MATERIAL: 7075-T6 Aluminum
- HARDWARE: Stainless Steel















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