Featuring a JIS square taper standard, our oversized bottom bracket interface showcases a step-down shape specific to the crank arm length meeting at the pedal boss. Unlike alternative options, no two lengths are the same. Our durable cold-forged cranksets are available in sizes from 135mm through 170mm and employ a 5 bolt 110 BCD chainring pattern.All JIS square taper standard cranks are compatible with all BSA European style square taper bottom brackets.SPECIFICATIONS:â¢Material: Cold-Forged & CNC 6061-T6 Aluminiumâ¢Finish: Anodized w/Laser-Etched Graphicsâ¢Chainline: 44.5mmâ¢Q Factor: 168mmâ¢Torque Specs: 12-14 Nmâ¢Spindle: JIS Square Taperâ¢Chainring: 5 Bolt 110 BCDâ¢Available in 5 sizes from 135mm to 155mm