 |
A frayed, partially broken shift cable |
A while back, I heard a participant in an indoor cycling class talking about shifting problems with her road bike. I could tell she was a distance rider with plenty of endurance rides under her belt, as opposed to someone who rides a few miles on the Monon Trail on holiday weekends. It was also pretty clear, though, that she had limited knowledge of how her machine works. I say that because her problem was a frayed shift cable, but she had no idea why it caused her problem!
My first road bike (a 1964 Garlatti) had shift levers on the down tubes: you could follow the entire length of the cables running from the levers to front and rear derailleur. Not so my current road bikes (a 1994 Trek 1400 and a 2015 Fuji Altamira): they both have
Shimano STI® integrated shifters, with the end of the shift cable concealed inside the shifter beneath the rubber “hood.” Cables, in case you didn't know, aren't solid wires: they’re made of multiple strands of stainless steel braided together, which allows them to be flexible while minimizing stretch.