Tightening a Crank Arm



Tightening your timing chain and/or your bottom bracket
If the long chain between your two cranks begins to sag beyond an acceptable 1/2″, it may be time to tighten it up. This will save your cog teeth by reducing slippage. The first step is to locate the bolts underneath the Captain’s Crank. These bolts allow the eccentric bottom bracket mount to move in an elliptical fashion. These require a 10mm wrench. Best is one open-ended and one small socket, closed-end wrench, or screwdriver. Two open-ended 10mm will also be fine. You will also need tools to remove your Captain’s Crank right side and a tension pin tool. We will continue this with a video…(coming soon)

