Chosen Solution
I was riding my bike this morning and i got off to walk it through some debris to avoid a flat. All was fine until i got back on and noticed the twist shifter would roll itself to 6th gear unless i shifted to a lower gear and held it in place for the entire ride. Any ideas? Just a loose cable perhaps?
Hold the wheel off the ground, crank it by hand, and shift all gears from High to Low. You are testing from slack cable to tight cable. Successful? -No- Check for chain-shifter problems and adjust all cable fittings. -Yes- Hold the wheel off the ground, crank it by hand, and shift all gears from Low to High. -Now you are testing from tight cable to slack cable. —Successful? —No- Replace the worn-out twist-shifter. It is un-able to hold the cable tension. —Yes- This tells us you weigh too much ! or… maybe the chain is stretched. Note: Old-school cables would quickly lose their ‘stretch’ for lack of oil.
