Replacing brake cable on tiagra shifters

kingrollo

Any tips on replacing the rear tiagra brake cable ? - Do I need to re tape the bar ? - only the inner that needs replacing, can I buy any old cable or is best to get the actual shimano part ?

imposter2.0

Pull the old one out, thread a new one in. Shouldn't need to un-tape/re-tape. As long as the cable is compatible, it doesn't matter what it is...

keef66

Doesn't need to be a Shimano cable, just needs the right shaped nipple for a road bike. Some after-market cables have a road nipple one end and MTB the other; just make sure you snip off the right one
I prefer simple stainless steel inners.

Sometimes the cable threads straight through into the outer without catching, occasionally I end up having to untape the bar. Sods law usually dictates that it will be difficult if I don't have much time :roll:

redvee

If it's anything like 105 5700 shifters it can be a PITA as the cable feeds in from underneath the shifter. Look at Shimano Tech Docs for you shifter model 46/4700.

raisinberry777

redvee wrote:

If it's anything like 105 5700 shifters it can be a PITA as the cable feeds in from underneath the shifter. Look at Shimano Tech Docs for you shifter model 46/4700.

Not the brake cable, which is the same for every model of Shimano STI lever probably ever. Feeds in the same way whether it's 4600 or 4700, through the top of the brake lever. If fed through correctly it should go straight into the cable outer and thus no removal of bar tape is necessary.

Just any cable is fine, I've found the Lifeline ones from Wiggle a good cheap alternative to Shimano ones.

Matthewfalle

One of the more pleasurable jobs - 30 seconds to take old one out, 5 mins to feed in, adjust brake, trim and cap new one.