Bottom bracket cups press fit Rotor 4130

Rotor BB PF4130 press fit bottom bracket cups

The Rotor BB PF4130 press fit bottom bracket cups are designed to deliver a smooth, stiff, and durable drivetrain solution for demanding cyclists. Developed by Rotor, a brand renowned for precision-engineered components, these cups ensure excellent compatibility with press fit frames and 30 mm spindle cranksets, while maximizing pedaling efficiency.

Ideal for road bikes, gravel bikes, and high-performance mountain bikes, these bottom bracket cups provide perfect crank spindle alignment and low-friction rotation—key elements for an efficient, quiet drivetrain.

Features of Rotor BB PF4130 press fit bottom bracket cups

• Bottom bracket type: Press Fit

• Frame standard: PF41 (41 mm internal diameter)

• Compatible shell widths: 86.5 mm / 89.5 mm / 92 mm depending on the frame

• Crankset compatibility: 30 mm spindle (BB30 standard, Rotor 3D+, Aldhu, Vegast, etc.)

• Cup material: CNC-machined aluminum

• Bearings: High-quality, sealed, low-friction bearings

• Installation: Press fit (direct press-in mounting)

Specifics and benefits

The Rotor press fit bottom bracket cups stand out thanks to their robust design and precision machining. The aluminum construction provides optimal stiffness, limiting flex under load and improving power transfer between the crankset, chain, and cassette.

The sealed bearings reduce friction and significantly extend the lifespan of the bottom bracket, even in wet or dusty riding conditions. The result is a smoother drivetrain, consistent pedaling, and a noticeable reduction in the creaks often associated with press fit bottom brackets.

The PF4130 standard also offers excellent compatibility with many modern frames, while retaining a large-diameter spindle for improved mechanical efficiency.

Why choose Rotor BB PF4130 bottom bracket cups ?

• Improved drivetrain efficiency

• Excellent stiffness for powerful pedaling

• Smooth and quiet rotation

• Increased bearing durability

• Wide compatibility with 30 mm spindle cranksets

Recommended use

These Rotor BB PF4130 press fit bottom bracket cups are perfectly suited for cyclists seeking performance and reliability, whether for a new build or replacing a worn bottom bracket on a modern road, gravel, or mountain bike.