Left Crank Arm 170mm bike crankset exercise bike parts mountain bike accessories mongoose bike parts bicycle replacement parts schwinn replacement parts mountain bike parts mountain bike accessories for men mountain bike tool kit
Available in 2 Spindle Interface Mode: Diamond Interface and Square Interface. Please make sure it matches your original crank port. (The two ports have the same size, they just face differently)
Hole spacing length:170mm; total length:210mm. Crank arm fits 9/16 inch pedal
Material: high quality Aluminum alloy
NOTE 1: Please check the interface of your original crank arm is square or diamond(Please refer to product pictures). Keep both left and right arms have the same hole;Some GYM bikes may not be available, please confirm the length and connection port
NOTE 2: If you have replaced the crank once, then you need to replace the bottom bracket when you update the crank again, because the life of the general bottom bracket is only 2 times. If you encounter any problems in the process of use, please let us know, we will help you solve the problem