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1. InstallPlease check the interface of your crank arm is square. |
2. Install8mm Hex Crank Arm Fixing Bolt and Cap replace the old bolts for your crank. |
3. InstallUses an 8mm hex wrench to install. |
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Size:8mmx15mm |
blue antiskid adhesive:Coated with blue antiskid adhesive. |
Material:High strength chrome plated waterproof screw with waterproof plastic seal. |
If your crank arm is ovalized and keeps falling off. Replacing the bolt with keep the crank arm attached for a while but will eventually fall off. If this happens you will need a new crank arm. When the square taper is ovalized from wear, it will back out the bolt.