High-strength 6061 aluminium bottom bracket key — precise fit, long life, easy to carry Why you need this - Prevents tool deformation and stripped grooves: made from 6061 aluminium alloy with T6 heat treatment for higher hardness than ordinary keys, so the tool holds its shape under torque and protects the bottom bracket splines. - Accurate fit for multiple standards: designed to engage notched rotor-style circlips and common BSA bottom bracket cups so you can remove and install BB units cleanly and quickly. - Compact and travel-ready: short, ergonomic length gives reliable leverage with minimal effort and fits in a travel/tool kit for on-the-road repairs. Key features - Material and treatment: high-quality 6061 aluminium alloy, T6 heat-treated for improved hardness and durability. - Primary tool options: - DUB / TL-FC32 key: DUB key for SRAM DUB and SHIMANO BSA bottom brackets. - TL-FC33: fits Shimano BB51, BB5700, BB70, BB80; FSA MegaExo; Hope; SRAM/Truvativ GXP; Race Face X type; Prowheel and other BSA bottom brackets that use circlips with 16x notched rotor disc grooves. - Adapters: - TL-FC25 adapter: for Shimano SLX/XT/105/Ultegrabas BB (2015 and later). - TL-FC24 adapter: for Shimano XTR/Dura Acebas bottom bracket (2015 onwards). - Portable design: compact shape for easy transport and storage; length optimized to provide sufficient leverage without bulk. How it solves common problems - Stops rounding or slipping: hardened aluminium and precise machining reduce risk of slippage that damages BB cups or tool teeth. - Saves time during maintenance: direct, secure engagement with notched circlips speeds removal and installation compared with improvised tools. - Ready for travel and races: small footprint fits bike cases and tool rolls so you can perform field or pit repairs. Practical use scenarios - On a multi-day tour: quickly remove and service your BSA bottom bracket or swap a DUB unit with a compact key that fits in your travel toolbox. - Home workshop maintenance: use the TL-FC33 or DUB key for routine BB inspections and cleanings without risking tool deformation or part damage. - Race-day or pre-ride checks: fast, reliable removal/installation of BB components for last-minute adjustments or replacements. Specifications and compatibility (as supplied) - Material: aluminium alloy 6061, T6 heat-treated - Compatibility highlights: - DUB key for SRAM DUB and SHIMANO BSA BB - TL-FC33: Shimano BB51, BB5700, BB70, BB80; FSA Megaexo; Hope; SRAM/Truvativ GXP; Race Face X type; Prowheel; other BSA bottom brackets with 16x notched rotor disc grooves - TL-FC25 adapter: Shimano SLX/XT/105/Ultegrabas BB (2015 and later) - TL-FC24 adapter: Shimano XTR/Dura Acebas bottom bracket (2015 onwards) What you get - A robust, heat-treated 6061 aluminium bottom bracket key with the listed DUB/TL-FC33 compatibility and TL-FC25/TL-FC24 adapters for the specified Shimano and other BSA-style BBs — a compact, reliable tool for shop or travel use.