Rotor C04-041-01010-0 T4729 External Bottom Bracket - Steel (Black)

SKU: LNU-7-2026

Brand:
Rotor

Category:
Bikes / Cycling

Sub-Category:
Equipment & Accessories

The Rotor T4729 External Bottom Bracket (Steel, Black) is a threaded bottom bracket built for frames using the T47 standard. It features external steel bearings housed in precision CNC-machined aluminum cups to provide a reliable, durable rotation interface for DUB-standard cranksets such as SRAM DUB (28.99 mm spindle). The external bearings mean the bearings sit outside the frame shell for easy serviceability and stable performance across disciplines like road, gravel, MTB, cyclocross, and triathlon.

PHP 6,000.00

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Key Features

Designed for T47 threaded bottom bracket shells — larger and more robust threads than traditional BSA standards.
SRAM DUB compatibility (28.99 mm axle) — works with SRAM DUB cranksets.
External steel bearings — durable and affordable bearing option for smooth pedaling.
7075 CNC-machined aluminum cups — strong, corrosion-resistant build.
Silicone seals — help keep out dirt and moisture for longer bearing life.
Black anodized finish — sleek and matches many frame builds.

Specifications

Part Number: C04-041-01010-0
Product Name: Rotor T4729 External BB Steel Black
BB Standard: T47 threaded
Bearing Type: Steel (external)
Crank Spindle Compatibility: SRAM DUB – 28.99 mm
Cup Material: CNC-machined 7075 aluminum
Seal Type: Silicone
Color / Finish: Black anodized
Compatible Shell Widths: 68 mm (road); 73 mm (MTB)
Discipline: Road, Gravel, MTB, Cyclocross, Triathlon
Installation Tool Fitment: 12-notch T47 bottom bracket tool (Rotor UBB+ / similar)
External bearings protrude slightly from the frame, which is standard for this type of BB design.

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