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ROTOR T4730 External BB. You think that your bike's performance features could be enhanced with components selected á la carte at your local bike shop — and that you should be able to accomplish this despite the spawn of deviant bottom bracket "standards" that have created component compatibility issues.
Threaded bottom brackets like your T47 BB shell shouldn't foil plans to upgrade your ride. ROTOR T4730 bottom bracket is the "yes" component to "Is this compatible with my T47 threaded BB shell for a 30 mm axle?"
ROTOR T4730 External BB features:
| Weight | T4730 External BB steel black - 103g |T4730 External BB ceramic red -97g |
| Material | Aluminum alloy 7075 100% CNC-machined |
| Compatible Crankset Brand | ROTOR |
| Material Bearing | Steel | Ceramic |
| Axle diameter compatible | 30mm |
| Frame Type | T47 |
| Discipline | Road | Triathlon | Gravel | Cyclocross | MTB |
| BRAND | ROTOR |
|---|---|
| Discipline | Cyclocross, Gravel, MTB, Road, Triathlon |
| Compatible Crankset Brand | ROTOR |
| Frame Type | T47 |
| Shell Widht | 68mm, 73mm |
