Praxis BB30 Bottom Bracket Conversion - 68mm - Shimano

The Praxis Works Conversion Bottom Bracket is designed to allow you to run Shimano Hollowtech II 2...

Best current price£65.00from Leisure Lakes Bikes

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Leisure Lakes BikesPraxis Shim BB30/PF30 68mm Bottom Brackets Black
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£65.00
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Merlin CyclesPraxis Black Bb30 Bottom Bracket Conversion - / Bb30 / Pf30 / 68Mm
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Tweeks CyclesPraxis Works BB30/PF30 Conversion Bottom Bracket - Shimano 24mm - Black
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eBayPraxis Works BB30 / PF30 Conversion Bottom Bracket - Shimano 24mm
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£75.31
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Product Information

Full details

The Praxis BB30 Bottom Bracket Conversion is an essential upgrade for road cyclists looking to install Shimano Hollowtech II 24mm spindle cranks into BB30 or PF30 bicycle frames. Designed for 68mm shell widths, this system ensures a rigid and creak-free interface by utilizing high-quality Enduro steel bearings and a robust machined aluminum construction. While it offers superior reliability and smooth rotation, users should note that it is strictly limited to 68mm shell frames and requires specific Praxis bottom bracket tools for successful installation.

All features

Model Part NumberPR-68-3001R
BrandPraxis

Extended Product Information

FAQs

Can I use this for a mountain bike?

No, this specific model (PR-68-3001R) is designed exclusively for 68mm road bike shells.

Does this work with SRAM cranks?

No, this unit is specifically engineered for Shimano Hollowtech II 24mm spindles.

Are the installation tools included?

No, you must purchase the specific Praxis bottom bracket tools separately.

Can I replace the bearings later?

Yes, the system utilizes standard Enduro steel cartridge bearings that can be serviced or replaced.

Is this compatible with PF30 frames?

Yes, it includes a plastic sleeve that allows for integration with PF30 frames.

Troubleshooting

Audible creaking during heavy pedaling

Ensure the cups are fully tightened using the correct torque specifications and check that the frame shell is perfectly clean.

Difficulty fitting the spindle through the bearings

Verify that no debris is inside the bearing races and ensure the frame shell width is exactly 68mm.

Pros and Cons

Pros

  • Eliminates common creaking issues found in standard BB30 systems
  • Provides a rock-solid platform for power transfer
  • Uses industry-standard Enduro bearings for easy long-term maintenance
  • High-precision machining ensures a perfect fit

Cons

  • Requires specific Praxis M30 bottom bracket tools for installation
  • Not compatible with 73mm mountain bike shell widths
  • Requires professional-grade press tools to install correctly

Setup, Compatibility & Care

To ensure peak performance, this bottom bracket must be installed into a standard 68mm shell. It is not designed for 73mm mountain bike shells; for those applications, refer to the PR-73-3201R variant.

Installation Requirements:

  1. Ensure the frame shell is clean and free of debris.
  2. Utilize a professional bearing press tool to seat the aluminum cups.
  3. Use two dedicated Praxis bottom bracket tools to tighten the assembly until the internal sleeve is fully engaged.

Care Instructions:

  • Periodically inspect the external seals for buildup of road grime or grit.
  • Avoid high-pressure water washing directed at the bearing seals to prevent grease contamination.

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