Seido T47 TRAC Bottom Brackets – Internal & External

Engineered for Maximum Durability and Performance
Seido T47 TRAC Bottom Brackets feature Twin Row Angular Contact (TRAC) bearings, designed to handle high loads and deliver exceptional stiffness. By adding a second row of balls in a compact 10mm bearing unit, these bottom brackets ensure long-lasting performance under demanding conditions, ideal for professional bike manufacturers, distributors, and workshops.

Product Variants:

Seido T47 TRAC BB / Internal

• Type: Internal

• Color: Black

• Cup Material: Aluminum

• Spindle Size: 30 mm

• Compatible BB Shell Width: 85.5 / 86.5 mm

• Tool Interface: T47 52-16 Tool

• Bearings: 3806, 30 x 42 x 10 mm

• Extra Info: Adaptable to 29, 24, and 24/22 mm with TRAC spindle adapters

• Included: 2 x 2 mm washers, 4 x 0.5 mm washers, 1 x wave washer

• Weight: 130 g

Seido T47 TRAC BB / External

• Type: External

• Color: Black

• Cup Material: Aluminum

• Spindle Size: 30 mm

• Compatible BB Shell Width: 68 mm

• Tool Interface: T47 52-16 Tool

• Bearings: 3806, 30 x 42 x 10 mm

• Extra Info: Adaptable to 29, 24, and 24/22 mm with TRAC spindle adapters

• Included: 6 x 0.5 mm washers, 1 x wave washer

• Weight: 154 g