WOLF TOOTH bottom bracket T47 External 24mm black

Product description

Wolf Tooth T47 External bottom brackets are designed for smooth operation, maximum durability and easy serviceability. Our unique design uses custom bearings, seals and polymer bushings to effectively eliminate annoying squeaks. The system combines best-in-class weather protection with optimized bearing compression for minimal rolling resistance. This option is designed for T47 frames, where the bearings are housed in cups outside the frame.

Premium bearings with ACOSUR ZNA surface treatment The balls and raceways of the bearings are made of hardened chrome steel, which has a higher surface hardness than stainless steel. This ensures a longer service life and quieter operation. Thanks to the special ACOSUR ZNA coating, the bearings resist corrosion better than stainless steel (verified by a 500-hour salt bath test). Combined with sophisticated sealing and the elimination of metal-to-metal contact, these compositions deliver top performance in any conditions.

Main advantages

• Wide compatibility: For cranks with 24 mm axle (Shimano)
• External design: Bearing cups are screwed outside the frame.
• Adjustable width: The inner cap fits T47 center sockets with a width of 68 mm to 73 mm.
• Quiet operation: Polymer axle bushings prevent creaking and grinding.
• Maximum protection: Superior sealing against water, mud and dust.
• Lifetime warranty on bearings.
• Right to Repair: Spare parts and service manuals are fully available.