HANDLEBARS: SHIFTER CABLES INTERNAL ROUTING
I am having difficulty running my shifter cables through the internal routing of the Plasma/ K-wing handlebar. What should I do?
First, check your housing diameter. FSA handlebars are only compatible with 4mm shift housing. Trying to use 5mm housing can cause the carbon around the internal routing holes to crack. It is also recommended to cut the housing slightly longer than normal (about 10mm) to alloy the cable adequate movement throughout the entire range of steering. If the housing is too short and tight, the tension in the cable housing can also crack the carbon entry points of the bar.