The Rotor T47 bottom bracket is made of CNC-machined aluminum 7075 and features steel bearings as well as silicone seals. The T4730 model fits Rotor cranksets with 30 mm axle. In the External version, the bottom bracket is compatible with 68 mm road and 73 mm MTB frames.
Weight: approx. 103 grams (manufacturer`s specs)
| Weight: | 103g |
| Activity: | Cycling |
| Material: | Aluminium, Steel |
| Item code: | ROT535771 |
| Model year: | 2021 |
| Manufacturer: | Rotor |
| Product name: | Rotor T4730 External Bottom Bracket - Steel - T47-68/70-30 |
| Case diameter: | 47mm |
| Usage bikesport: | Road Bike, MTB |
| Manufacturer page: | http://www.rotorbike.com |
| Bottom bracket type: | T47 |
| Manufacturer item code: | ROBBT4730EX-SB |
| Bottom bracket case width: | 68mm, 73mm |
| Bottom bracket axle profile: | 30mm Hollow Shaft |
| Bottom bracket construction: | Bottom Bracket Cups |
