M30 road BB30 / PF30 Bottom Bracket - black/Pressfit

Praxis Works M30 road BB30 / PF30 Bottom Bracket

Item number: 61311
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Praxis Works cranks with M30 axle (30 mm right, 28 mm left) can be installed with this bottom bracket, on either BB30, PF30 or Specialized OSBB (model 2014-2015) frames.

Specifications:

Application:
Road
Series:
M30
Type:
BB30, Pressfit PF30
Shell Diameter:
42 mm, 46 mm
Shell Width:
68 mm
Axle Diameter:
30 mm (Practice Works M30)

Technical Information:

Bearings:
steel
Bottom Bracket Cup Material:
aluminium

Compatibility:

  • for 68 mm BB30, PF30 and older Specialized OSBB road frames
  • only compatible with Praxis Works road cranks w/ M30 axle, other cranks not applicable
  • for braze-on, clamp and direct mount front derailleurs
  • not for MTB cranks

Features:

  • cups made of forged and machined heat-treated aluminium
  • 30 mm bearing on the drive side, 28 mm bearing on the non-drive side
  • patented sleeve design: bearing cup with integrated sleeve on the non-drive side for a smooth fit
  • O-ring on non-drive side compensates for frame discrepancies
  • orange elastomer ring for drive side

Technology:

M30
Praxis Works M30 bottom brackets are only suitable for use with Praxis Works M30 cranks. The M30 axle corresponds to a kind of " oversize GXP" . It is 30 mm thick and reduced to 28 mm on the left end to fit the non-drive side bearings. A shaft washer is used at the drive side to provide preload and a 30 mm bearing, which is opposed by a 28 mm bearing at the non-drive side. M30 combines the advantages of wide bearings with the benefits of a sturdy 30 mm axle. This enables a secure fit and better power transmission.

Practice Collet
Patented Praxis Works technology not only neutralizes all tolerances from frame manufacturers, but also guarantees an increased service life. In Praxis Collet bottom brackets, the non-drive side is pressed in and then the drive side is screwed into it. When screwed together, the bearing expands to a defined end position, which corresponds to the respective press fit, and sits tight without creaking. Additionally, an orange elastomer rubber ring is compressed in the drive direction, which in turn expands towards the frame, thereby jamming the bearing once again. The elastomer material compensates for tolerances while simultaneously muffling any cracking noises.

Manufacturer Number:

68-4001R

Contents:

  • 1 x Praxis Works M30 BB30 left bearing cup, incl. bearings and bottom bracket sleeve
  • 1 x Praxis Works M30 BB30 right bearing cup, incl. bearings
  • 1 x rubber rind for drive side, orange
  • 1 x compression sleeve for drive side
  • 1 x 30 mm x 1 mm dust cap for drive side
  • 1 x 30 mm x 2 mm dust cap for drive side
  • 1 x wave washer for drive side
  • 1 x 28 mm x 2 mm dust cap for non-drive side
  • 1 x Praxis Works PF30 bottom bracket sleeve
  • 1 x O-ring for non-drive side

Order Together:



  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.89 / 5.00

Models:

  • black/Pressfit, out of stock
    58.85€

Customer Reviews (1)

5

Customer Reviews (1)

5.0/5.0
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Give us your opinion on this product.

by Marcel G. on 05.08.2022

Ce boitier existe t'il en filetage italien 36x24 avec les roulements d 30 et d28?
Merci d'avance

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