T47 Threaded Bottom Bracket

Upgrade your bike’s pedaling performance with our T47 threaded bottom bracket, fitted with premium ceramic bearings. The double‑sealed structure delivers reliable waterproof & dustproof protection, offering ultra‑smooth rotation, high lubricity and near‑silent riding. It supports frames with 86-92mm BB shell width, compatible with both 24mm and 29mm crank axles. Perfect upgrade for road bikes, mountain bikes and gravel bikes. Specifications Model: T47 Threaded Bottom Bracket - Bearing: High‑Grade Ceramic Bearing - Seal: Double‑Sided Waterproof & Dustproof Sealing - BB Shell Width: 86-92mm - Compatible Crank Axle: 24mm / 29mm - Material: CNC Machined Aluminum Alloy + Steel - Application: Road Bike / MTB / Gravel Bike Key Features 1. **Premium Ceramic Bearings** Compared to standard steel bearings, ceramic bearings roll smoother, run lighter, have greater strength and longer service life. Enjoy efficient, quiet pedaling on every ride. 2. **Dual‑Sealed Barrier Design** Dual lip seals effectively block mud, water and fine dust from entering the bearing. Reduce wear and extend lifespan even in wet or dirty riding environments. 3. **High‑Precision Thread Machining** Accurate threads ensure tight, stable installation. Minimize frame contact noise and eliminate annoying creaks during long rides. 4. **Wide Cross‑Compatibility** Works with mainstream road, mountain and gravel frames. Fits Shimano Hollowtech II (24mm axle) and SRAM DUB (29mm axle) crank systems. ## Compatibility ✅ 24mm axle: SHIMANO Hollowtech II crankset ✅ 29mm axle: SRAM DUB crankset ✅ BB shell width: 86-92mm