Are you chainring bolts turning when you tighten them up?
One of these handy wee tools in the kit bag never goes astray,if your trying to torque up the chainring bolts bu they keep turning grab this, hold it in the slots on the back bolts and away you go.Description:
Uses: this wrench treated with heating and hardened process is used to fix bolt for crank arm from one side, and used with hex wrenches to remove the bolt from the other side.
Material: stainless steel
Size: Length: 10cm
made from pressed steel