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ROTOR Track BSA Threaded Bottom Bracket - 24 MM

ROTOR Bottom Brackets

ROTOR Track BSA Threaded Bottom Bracket

Josh Matthew August 19, 2025

Price range: $115.00 through $150.00

BSA threaded bottom bracket designed for ROTOR track cranks

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ROTOR Track BSA Threaded Bottom Bracket

The ROTOR Track BSA Threaded Bottom Bracket is designed specifically for ROTOR track cranks. The ROTOR Track BB consists of two external, ultra-stiff cups with high quality steel bearings. There is an option for 24 MM and 30 MM spindle sizes.

 

ROTOR Bottom Bracket Comparison 

ModelBearingsPriceShellCranksetsWeight
ROTOR BSA 30MM Bottom BracketSteel | CeramicSteel: $65 | Ceramic: $200Fits BSA (English) threaded 68/73 mm shellsFits 30 mm cranksetsSteel: 96 grams | Ceramic: 89 grams
ROTOR ITA 30 Bottom BracketSteel | CeramicSteel: $65 | Ceramic: $200Fits ITA Threaded 70 mm framesFits 30 mm cranksetsSteel: 54 grams | Ceramic: 49 grams
ROTOR BB1 BSA 24MM Road Bottom BracketSteel | CeramicSteel: $50 | Ceramic: $135Fits BSA (English) threaded 68 mm shellsFits 24 mm cranksetsSteel: 93 grams | Ceramic: 91 grams
ROTOR BB1 ITA 24MM Road Bottom BracketSteel$50Fits ITA Threaded 70 mm framesFits 24 mm cranksets91 grams
ROTOR T47 30MM Bottom BracketSteel | CeramicSteel: $65 | Ceramic: $200Fits T47 68 and 73 mm shellsFits 30 mm cranksetsSteel: 103 grams | Ceramic: 97 grams
ROTOR T47 24MM Bottom BracketSteel | CeramicSteel: $65 | Ceramic: $200Fits T47 68 and 73 mm shellsFits 24 mm cranksetsSteel: 120 grams | Ceramic: 113.5 grams
ROTOR UBB 4630 Bottom BracketSteel$115Available for PF30, BBRight and 386 EVO framesFits 30 mm cranksets106 grams | 109 grams | 109 grams
ROTOR Press Fit 4130 Bottom BracketSteel | CeramicSteel: $50 | Ceramic: $200Fits PressFit 86/89/92 mm shellsFits 30 mm cranksetsSteel: 54 grams | Ceramic: 49 grams
ROTOR Press Fit 4630 Bottom BracketSteel | CeramicSteel: $65 | Ceramic: $175Fits PF30, BBRight or 386 EVO shellsFits 30 mm cranksetsSteel: 106 grams | Ceramic: 100 grams
ROTOR Track BSA Threaded Bottom BracketSteel$105Fits BSA (English) threaded 68 mm shellsAvailable for 24 mm and 30 mm cranksets108 grams | 119 grams

Compatibility

  • Shell: Compatible with BSA (English) threaded track frames
  • 24 MM Compatible cranksets: 3D24 Track, SRM ROTOR Track Power Meter
  • 30 MM Compatible cranksets: ALDHU Track, VEGAST Track, 2INpower Track Power Meter

Specs

  • Type: English (BSA) Threaded
  • Axle Size: 24/30 mm
  • Bearing type: Steel
  • Weight: 24 MM - 108 grams | 30 MM - 119 grams

*A ROTOR 30 MM Spacer Kit (sold separately) is needed when using the BSA 30 MM bottom bracket with the ROTOR 2INpower Track Power Meter.

Tools Needed for Installation

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

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