The SRAM RED BB386 crankset is a double chainring carbon crankset for road bikes, with a BB386 bottom bracket. Its hollow construction extends to the chainring spider, and the hardware is hidden, allowing the carbon to deliver greater stiffness and lower weight. For smooth performance, the manufacturer recommends X-GlideR chainrings, which are compatible with the Yaw system.
Choose a crank arm length of 165, 167.5, 170, 172.5, 175, or 177.5 mm based on your height and riding position. This version has 50-34-tooth chainrings, but the range also includes 46-36, 52-36, and 53-39 combinations. Bottom bracket bearings are not included, so make sure you have them before installation.
| Speeds | 11-speed |
|---|---|
| Chainrings | 50-34 teeth |
| Crank arm length | 172.5 mm |
| Bottom bracket | BB386 |
| Bolt circle diameter (BCD) | 110 mm |
| Chainline | 45.5 mm |
| Crank arm material | Carbon |
| Chainring material | Aluminum |
| Chainring protection | None |
Ships in 5-6 business days.