A suitable choice for anyone replacing a PF30 MTB bottom bracket on a frame with a 46 mm shell and a 30 mm spindle crankset.
The BBB BottomPress PF30 MTB is a press-fit bottom bracket for PF30 mountain-bike frames, providing a dedicated cup between the frame and the bearings. It is designed for frames with a 46 mm bottom-bracket shell diameter and accepts 68 mm or 73 mm shell widths.
Inside, chrome-steel BB30 bearings with CrMo construction support smooth, quiet drivetrain rotation. The glassfibre-reinforced nylon cups help keep the assembly light, with a published weight of just 88 g.
Before ordering, check that your frame is PF30, your shell measures 46 mm in diameter, and your crankset uses a 30 mm spindle. If those dimensions match, this is a practical replacement bottom bracket for keeping an MTB drivetrain rolling smoothly.
PF30 MTB fit
Designed specifically for the PF30 press-fit standard used on compatible mountain-bike frames.
30 mm spindle compatibility
Made for cranksets using a 30 mm spindle, subject to the correct PF30 frame dimensions.
46 mm shell diameter
The 46 mm cup diameter matches the PF30 frame-shell standard.
68 / 73 mm shell widths
Suitable for compatible MTB frames with either a 68 mm or 73 mm bottom-bracket shell width.
CrMo chrome-steel bearings
Chrome-steel BB30 bearings provide dependable support for smooth, quiet drivetrain rotation.
Lightweight construction
The complete bottom bracket weighs 88 g, helping keep the replacement assembly light.
Glassfibre-reinforced nylon cups
The cups use glassfibre-reinforced nylon construction for the press-fit interface.
General
Dimensions and weight
Materials and construction
PF30 - Press fit 30
A press-fit bottom bracket standard for frames with a 46 mm shell diameter. It provides a dedicated cup between the frame and the bearings.
Chrome steel BB30 bearings
Durable CrMo bearings support smooth, quiet rotation for dependable drivetrain performance.
Part of your ride
BBB is a Dutch cycling brand established in 1998 by former professional cyclists Chris Koppert and Frank Moons. The brand develops cycling parts and accessories informed by rider feedback, personal cycling experience and prototype testing.
BBB offers more than 1,500 products across 40 categories, with products sold in more than 40 countries. Its range is designed at the company’s headquarters in Leiden, the Netherlands, and the brand has received more than 100 product and innovation awards.
