Offering a balance of weight savings and efficiency, the 1 x 12-speed Shimano GRX FC-RX820-1 gravel crankset provides optimal gearing to cater to the demands of mixed-terrain riding.
- By pairing a 10-45T or 10-51T cassette (cassette not included) with 40T and 42T chainrings, riders can choose closer gear steps or ultimate range
- Options of 42T or 40T chainrings and 170, 172.5 or 175 mm crankarm lengths provide an additional level of customization
Imported.
View the Shimano GRX Product LineView all Shimano Bike Cranksets| Best Use | Gravel Cycling |
|---|---|
| Weight | 170 MM 40 T: 644 grams 170 MM 42 T: 656 grams 172.5 MM 40 T: 644 grams 172.5 MM 42 T: 656 grams 175 MM 40 T: 644 grams 175 MM 42 T: 656 grams |
| Crankarm Length | 170 MM 40 T: 170 millimeters 170 MM 42 T: 170 millimeters 172.5 MM 40 T: 172.5 millimeters 172.5 MM 42 T: 172.5 millimeters 175 MM 40 T: 175 millimeters 175 MM 42 T: 175 millimeters |
| Q Factor | 151 millimeters |
| Bottom Bracket Compatibility | Shimano Hollotech II |
| Bolt Circle Diameter | 110 millimeters |
| Chainring Sizes | 170 MM 40 T: 40T 170 MM 42 T: 42T 172.5 MM 40 T: 40T 172.5 MM 42 T: 42T 175 MM 40 T: 40T 175 MM 42 T: 42T |
| Included Components | Chainring |
| Speeds | 12-speed |
| Chainline | 49.7 millimeters |
| Chainring Mount | 4-bolt Asymmetric |
| Number of Chainrings | 1 Chainring |
| Spindle Diameter | 24 millimeters |
| Crankarm Material | Aluminum |