The penultimate ‘How To’ episode guide from the guys at Road Cycling UK and the Mpora.com bike network features advice on how to fit a road bike gear cable
Replacing a worn gear cable is essential to retaining the smooth function of a shifter and saving it from lasting damage. Retrieving the snapped remains of a cable from a dual control lever is on of the lengthiest tasks a bicycle mechanic will face and can therefore be among the most costly for you, the customer.
Stiffness in the shifter can often be taken as an early warning sign that the cable is reaching the end of its useful life.
How to fit a road bike gear cable a Road Cycling video by rcuk