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ROTOR BB1 ITA 24MM Road Bottom Bracket

Josh Matthew June 24, 2025

$50.00

For ITA frames and 24 mm cranksets. Smooth rolling and made to last

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ROTOR BB1 ITA 24MM Road Bottom Bracket

The ROTOR BB1 ITA 24MM Road Bottom Bracket is our go-to BB for ITA frames and cranksets with 24 mm spindles. This bottom bracket features durable steel bearings with silicone shields and only weighs 91 grams. This bottom bracket is smooth rolling and is made to last!

 

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 ITA threaded 70 mm shells
  • Crankset: Fits 24 mm cranks

Specs

  • Shell Width: 70 mm
  • Type: Italian (ITA) Threaded
  • Axle Size: 24 mm
  • Weight: 91 grams
  • Bearings: Durable steel bearings for smooth action
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