Last time I went through the steps necessary to achieve front derailleur alignment, as well as getting the correct setting on the limiter screws. Today’s little lesson is a mere check of the cable tension.
It won’t be much, but since no one’s reading this stuff, not much personal time will be wasted.
So here we go…
Start by putting your chain on the largest sprocket on the back and the smallest chain ring on the front. Now take a wrench to the clamp bolt attaching the cable to the front derailleur.
Loosen the bolt.
You’ll may find that some cable slipped through the clamp (indicating that you had too much cable tension on the cable). If you had some slack in the cable before you loosened the bolt, you didn’t have enough tension in the cable (your cable may have stretched over time).
Now you can pull the cable until it’s just snug and re-tighten the clamp bolt.
For fine-tuning, you can use the barrel tighteners on the cable housing. On my bike there isn’t a barrel tightener for the front derailleur…there is one for the rear derailleur and for each of the brakes. Your bike may be different.
For all barrel tighteners, you turn them counterclockwise to tighten the cable. But it isn’t necessarily as easy as that…because counterclockwise is relative to which direction you’re pointing.
Here’s how I remember it… ‘unscrewing’ the barrel tightener tightens the cable and screwing it in loosens the cable. Kind of an inverse deal.
When you unscrew the barrel tightener it pulls the cable away from the derailleur (or brake lever), which puts more tension (tightness) on the cable.
Before you take your trusty stead out onto the battlefield, you’ll want to shift between gears to make sure all is well. If it still doesn’t work correctly,
switch over to another cycling site that actually knows what they’re talking about pick your nose and look pensive.
If you see strands of cable that are frayed, feel smug. You’re one of the cyclists who have actually used their bikes enough to get some wear on them.