Hope Press Fit 46 Bottom Bracket - Black - PF46 - Steel Bearings - 68/73mm - 30mm Axle - Internal Bearing

The Hope PF46 Bottom Bracket is designed for reliable, smooth performance in various bottom bracke...

Best current price£96.50from Merlin Cycles

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Merlin CyclesHope Black Press Fit 46 Bottom Bracket - / Pf46 / Steel Bearings / 73Mm / 30Mm Axle / External Bearing
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£96.50
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Leisure Lakes BikesHope PF46 Bottom Bracket 73/30mm Black
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Product Information

Full details

The Hope Press Fit 46 Bottom Bracket is an ideal upgrade for mountain and road cyclists seeking long-term reliability and smooth drivetrain performance. Designed for precision, it excels in demanding conditions thanks to its robust stainless steel bearings and specialized sealing system; however, it requires professional-grade press tools for correct installation to avoid damaging the frame or bearing cups.

All features

Model Part NumberBBPF467330SSNS
BrandHope

Extended Product Information

FAQs

Can I install this at home?

Yes, but only if you have a proper bearing press tool. Do not use a hammer or makeshift tools, as this can damage the frame or the bearings.

Does this work with 24mm axles?

This specific model is designed for a 30mm axle. Hope offers variant models for 24mm axles, so ensure your crankset diameter matches the bracket.

How often should I service the bearings?

Service intervals depend on riding conditions. In dry climates, once a year is usually sufficient; in wet or muddy conditions, you may want to check them every 6 months.

Are the bearings replaceable?

Yes, Hope manufactures these to be fully serviceable and you can replace the stainless steel bearings without purchasing a new bottom bracket.

Does it need extra spacers?

No. The design is intended to run directly on the chainset axle, meaning no additional spacers or shims are required.

Troubleshooting

Creaking sound under load

Check that the screw-in centre tube is tightened securely and ensure the cups are fully seated in the frame shell.

Increased friction or 'rough' pedaling

Inspect the labyrinth seals for trapped debris; remove, clean, and re-grease the seal interface.

Pros and Cons

Pros

  • Exceptionally durable stainless steel bearings
  • Effective labyrinth seal design for harsh conditions
  • Easy to maintain with replaceable internal components
  • UK-manufactured quality and precision
  • Eliminates common creaking caused by lateral movement

Cons

  • Requires professional press-fit installation tools
  • Not compatible with all frame standards
  • Initial installation can be intimidating for home mechanics

Setup, Compatibility & Care

Compatibility: This model is specifically compatible with 46mm internal diameter bottom bracket shells and 30mm crank axles. It is intended for frames with standard shell widths ranging from 68mm to 73mm.

Installation:

  1. Clean the bottom bracket shell thoroughly to remove old grease or debris.
  2. Apply a thin layer of assembly paste to the contact surfaces.
  3. Use a high-quality press-fit tool to install the cups evenly into the frame.
  4. Use the included screw-in centre tube to secure the two halves together.

Care: To ensure longevity, avoid high-pressure water washing directly at the bearing interface. If the bearings eventually feel gritty, they are fully serviceable and replaceable using standard workshop tools.

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