If your older or lower-level Shimano crankset isn't listed as compatible with our power meters, your existing drive-side crank might still work with a different left-side crank arm that features our power meter technology. Many Shimano crank arms and cranksets are cross-compatible, offering a viable path to riding with power, even if the aesthetics aren't identical.
Consult the list below for incompatible Shimano cranks and their nearest compatible alternatives. Once you've identified the right crank, use our crank finder to check for current stock. Be sure to perform a clearance check and select the appropriate length.
| Incompatible Shimano Crank |
Closest Compatible Ride Ready Left Crank |
| ROAD | |
| Dura-Ace 7900 Series | Dura-Ace 9100 or R9200 |
| Ultegra 6600 Series | Ultegra R8000 or R8100 |
| Tiagra R4700 Series | 105 R7000 or 105 R7100 |
| Tiagra R4600 Series | 105 R7000 or 105 R7100 |
| Sora R3500 Series | 105 R7000 or 105 R7100 |
| Sora R3000 Series | 105 R7000 or 105 R7100 |
| Shimano RS510 Series | 105 R7000 or 105 R7100 |
| Shimano RS500 Series | 105 R7000 or 105 R7100 |
| MOUNTAIN | |
| SLX M7100 Series | XT M8100 |
| SLX M7000 Series | XT M8100 |
| Deore M6100 Series | XT M8100 |
| Deore M5100 Series | XT M8100 |
| Shimano MT900 Series | XT M8100 |
| Shimano MT700 Series | XT M8100 |
| Shimano MT500 Series | XT M8100 |
| GRAVEL | |
| GRX RX600 Series | GRX RX810/820 |
| GRX RX400 Series | GRX RX810/820 |