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ROTOR Press Fit 4630 Bottom Bracket - Steel

ROTOR Bottom Brackets

ROTOR Press Fit 4630 Bottom Bracket

Josh Matthew April 6, 2026
5.00 out of 5 based on 1 customer rating
(1 customer review)

Price range: $80.00 through $175.00

Works with PF30, BBRight or 386 EVO bottom brackets

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ROTOR Press Fit 4630 Bottom Bracket

The ROTOR Press Fit 4630 Bottom Bracket adapts any PF30, BBRight or 386 EVO bottom bracket shell to fit a 30 mm diameter crank spindle. The ROTOR PF 4630 BB features two cups with bearings pressed in with a sleeve. It is available in steel or ceramic.

 

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 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

Works with PF30, BBRight or 386 EVO bottom brackets.

Specs

  • Shell Width: 68/79/83/86.5 mm
  • Type: PF30/BBright/386EVO Pressfit
  • Axle Size: 30 mm
  • Weight: Steel - 106 grams | Ceramic - 100 grams
  • Bearings: Dual track bearings. Machined outside bearing
1 review for ROTOR Press Fit 4630 Bottom Bracket

  1. billvau (verified owner) –

    Perfect BB. Super-easy install (Press and go). Don’t creak.

    • Power Meter City –

      Hi Billvau. Thank you for this review! Please let us know if there is anything else we can do!

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