| Arm Length: | 175, 180 mm |
|---|---|
| BB Shell Width: | 68, 73 mm |
| BB Thread Type: | English |
| Bolt Pattern: | 5-Bolt |
| Chain Compatibility: | 9-Speed |
| Chainring BCD: | 94 mm |
| Crank Intended Use: | Single Speed |
| Crank/FD Type: | Single Ring |
| Pedal Spindle: | 9/16" |
| Rings: | 33 |
| Surly MR Whirly Crankset | $325.00 | |
| Surly MR Whirly Crankarm Set | $116.50 |