Neco SRQ/JIS Aluminum Sealed Cartridge Bottom Bracket ENG with Bolts Aluminum cups and lock seals Silver CrMo hollow axle SQR JIS ENG Thread Available in 107.5/110.5/113.5/119/131 mm Sealed bearings and axle bolts with sealing ring Max torque of 58 N-m and sold in Aftermarket Packaging