DESCRIPTION The Box Four Crankset features a 2-piece design with an oversized bottom bracket interface. The 24mm spindle is pressed into the drive-side crank arm for durability and easy installation. The non-drive side crank arm features a 2-bolt pinch system for added strength. Our unique 4-bolt 104 BCD spider features a flex-resistant ring for optimum performance. Box Four Cranks feature steel pedal inserts that require pedal washers and external sealed bearing BSA bottom brackets, and both are provided in the box. SPEC Material : Arms>6061-T6 Aluminum, Spindle>Chromoly Steel Process : Arms>Cold-Forged & CNC, Spindle>CNC Turned Finish : Anodized w/Laser-Etched Graphics Chainline : 44.5mm Q Factor : 168mm Spindle : 24mm Included Bottom Bracket : BSA 1.37 Included Torque Specs : 12-14 Nm Compatibility : Chainring>4-bolt 104 BCD Size & Weight : 160mm / 900 g / 31.7 oz Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb ** There is 1-3cm errors due to manual measurement. Please kindly understand. ** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings ** WE DO NOT DO COD ** ONLINE ONLY ** We support original products only. ** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER