Browsing Axle Tensioners from BOX

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BOX One Chain Tensioner
Margin Booster
  • Extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weight
  • A minimalist design adds style while reducing their overall mass
  • Laser-etched graphics that include wheel position guides and two 10mm mounting holes ensure perfect adjustability on most frames every time you remove and replace your wheel
item # color in stock?
  BX-4090 black NO
  BX-4091 black YES