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The Praxis M30 Thru Bottom Bracket offers rigid, precise support for 30mm spindle cranks, compatible with English threaded and press-fit frames.
The Praxis M30 Thru Bottom Bracket offers rigid, precise support for 30mm spindle cranks, compatible with English threaded and press-fit frames.
Praxis

Praxis M30 Thru BB86/BB90/BB92 MTB Bottom Bracket

£55.00
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Praxis M30 Thru BB86/BB90/BB92 MTB Bottom Bracket

Season:All Year Round

Brand:Praxis

Code:PR-86-4201S

The Praxis M30 Thru Bottom Bracket is designed for installing Praxis Lyft Carbon, RaceFace Cinch, Rotor REX MTB, or CaneCreek eeWings cranks. Its patent-pending outboard bearing design positions the Enduro 6806 cartridge bearings outside the frame for greater rigidity and eliminates tolerance issues common with other bottom bracket systems. This bottom bracket provides rigid, precise, and durable support for 30mm spindle cranks across both English threaded and press-fit frame standards.

Press-Fit Installation:

  • Installation Process: Press the longer non-drive cup into the frame, then thread in the shorter drive cup. As it threads, the collet system expands to a precise limit, evenly dispersing pressure for a secure, wiggle-free fit.
  • Frame Compatibility: Compatible with BB30, PF30, BB86, BB90, and BB92 frames. A BB92 guide is required for BB92 frames.
  • Adjustment: A compressible O-ring on the non-drive side compensates for frame shell width differences.

English Threaded / BSA Installation:

  • Compatibility: Fits English Threaded / BSA frames.
  • Guide Compatibility: Works with ISCG05 and ST Mounted MTB guides; not compatible with ISCG03.
  • Tools Required: Praxis M30 BB tools are required (sold separately).

Product Details:

  • Crank Compatibility: Praxis Lyft Carbon, RaceFace Cinch, Rotor REX MTB, CaneCreek eeWings.
  • Bearing Size: 30mm drive and 30mm non-drive.
  • Bearings: Enduro 6806 steel.
  • Material: Forged and machined 7075 T6 aluminium.
  • Shell Widths: Road BB86: 68mm (spindle 103mm+); MTB BB90/92: 73mm (spindle 108mm+).
  • Important Notes: The 68mm Road version cannot be used with MTB cranks. BB86/92 frames should be checked with the frame gauge before fitting.
Sizing Information
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