FRONT CHAINWHEEL, FC-RX820-1, GRX, FOR REAR 12-SPEED, HOLLOWTECH 2, 170MM, 40T W/O BB PARTS
| Outer Ring Material | Aluminum |
| Crank Axle Material | Steel |
| Average Weight | 644g,656g |
| Compatible Bb Type | Outboard |
| Crank Axle Finish | Plated |
| Gear Arms | 4 |
| Compatible Chain | HG|12-speed |
| Crank Arm Length | 170,172.5,175 |
| Chain Ring Combination | 40,42 |
| Outer Ring Finish | Anodized |
| Crank Arm Material | Aluminum |
We Also Recommend
