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A black Praxis M30 Thru BSA Threaded Bottom Bracket with blue bearing seals.

Praxis Bottom Brackets

Praxis M30 Thru BSA Threaded Bottom Bracket

Power Meter City May 15, 2026

$48.00

BSA bottom bracket for 30 mm spindles

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Praxis M30 Thru BSA Threaded Bottom Bracket

The Praxis M30 Thru BSA Threaded Bottom Bracket is made for 30 mm spindles. It uses steel bearings and has machined, heat-treaded alloy cups. This bottom bracket is compatible with both 68 mm road and 68/73 mm mountain bike frames that use a BSA English threaded bottom bracket shell. It requires a single Praxis M30 Bottom Bracket Socket Tool for installation or removal.

 

Praxis Bottom Bracket Comparison

ModelPriceBearingsShellCranksetsWeight
Praxis M30 BSA Threaded Bottom BracketSteel: $45 | Ceramic: $160Steel | CeramicFits BSA (English) threaded 68/73 mm shellsFits Praxis M30 (30 mm/28 mm) cranksets100 grams
Praxis M30 T47 Inboard Bottom BracketSteel: $45 | Ceramic: $160Steel | CeramicFits T47 road framesFits Praxis M30 (30 mm/28 mm) cranksets100 grams
Praxis Shimano T47 Inboard Bottom BracketSteel: $45 | Ceramic: $160Steel | CeramicFits T47 road framesFits Shimano Hollowtech II cranksets104 grams
Praxis M30 BB86/BB90/BB92 Bottom BracketSteel: $45 | Ceramic: $160Steel | CeramicFits PF 41 mm bottom bracket shellsFits Praxis M30 (30 mm/28 mm) cranksets65 grams
Praxis M30 386EVO Bottom BracketSteel: $45 | Ceramic: $160Steel | CeramicFits 386EVO framesFits Praxis M30 (30 mm/28 mm) cranksets104 grams
Praxis 24MM T47 External Bottom BracketSteel: $45 | Ceramic: $160Steel | CeramicFits T47 road framesFits Shimano Hollowtech II cranksets104 grams
Praxis M30 Road BB30/PF30 68MM Bottom BracketSteel: $75 | Ceramic: $185Steel | CeramicFits BB30 and PF30 68 mm road shellsFits Praxis M30 (30 mm/28 mm) cranksets130 grams
Praxis Shimano Road BB30/PF30 68MM Bottom BracketSteel: $75 | Ceramic: $185Steel | CeramicFits BB30 and PF30 68 mm road shellsFits Shimano Hollowtech II cranksets130 grams
Praxis M30 Thru BSA Threaded Bottom Bracket$45SteelFits BSA (English) threaded 68/73 mm shellsFits 30 mm spindles100 grams
Praxis M30 Thru BB86/BB90/BB92 Bottom Bracket$45SteelFits PF 41 mm bottom bracket shellsFits 30 mm spindles65 grams
Praxis M30 Thru T47 Inboard Bottom Bracket$45SteelFits T47 road framesFits 30 mm spindles100 grams
Praxis M30 Thru Road BB30/PF30 68MM Bottom Bracket$75SteelFits BB30 and PF30 68 mm road shellsFits 30 mm spindles130 grams

Compatibility

  • Shell: Compatible with BSA (English) threaded bottom bracket shells
  • Crankset: Fits any crank using a 30 mm spindle

Specs

  • Colors: Black | Silver
  • Shell Width: 68 mm Road | 68/73 mm MTB
  • Shell Type: English Threaded
  • Threading: BSA
  • Axle Diameter: 30 mm
  • Weight: 100 grams
  • Cup Material: Aluminum

Tools Needed for Installation

You will need the following tool for installation of this product.

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