Precisely adjusts the "preload" tension of the bottom bracket bearings, helping to eliminate side play and backlash from thru bottom brackets. This will help maximize the life of the bottom bracket bearings.
It will fit the crank of any mountain, gravel or road bike that has SRAM, RaceFace or Easton cranks installed with a 30mm spindle, or SRAM DUB 28.99mm spindles.
Precision CNC machined, 7075 aluminum body and threaded adapter ring for a perfect fit.