Park Tool Chain Pin Ct-4/4.2/4.3/11 CTP-4K - Black YGroup_7033415729197 Pros: Excellent quality wheels at

Pros: Excellent quality wheels at a killer price point

TLD's deepest coverage half shell

When compared to other pulley materials

New anti-slip calf band and silicone grip lining

Materials: Shimano doesn't list the materials used

Park Tool Chain Pin Ct-4/4.2/4.3/11 CTP-4K - Black YGroup_7033415729197 Pros: Excellent quality wheels atThe CTP 4K comes with four (4) replacement tool pins for the chain and one 5 32" ball bearing. To replace a pin, simply remove the cap, take out the old pin, and carefully place the new one. Make sure to avoid misplacing the ball bearing located below the pin. Finally, replace the cap. Key features Approx. weight 0. 14