Shimano STI lever ??

bikeit65

I use Shimano Ultegra Sti levers but the rear lever has a little play in it which rattles whenever i go over rough or bumpy roads, a neighbour said it would be worth replacing the rear brake cable & the outer casing as the outer casing becomes clogged up over time and this causes the inner cable to become sluggish ? is he correct?

JohnnyAllez

Probably, unless the return spring has gone really wek. The mech spring should also help to pull the cable back tight. Worth taking the cables off and cleaing through, if it were me, for the hassle involved in taking `em off, I`d just bin `em and replace with new ones. It shouldn`t break the bank

http://www.chainreactioncycles.com/Mode ... delID=1597

andy_wrx

That a 9 speed Ultegra lever ?
They were renowned for rattling, see below for various fixes...

http://www.bikeforums.net/archive/index ... 01533.html
http://owensoundcycling.ca/osccBB/viewt ... p?f=4&t=80
http://www.roadbikerider.com/UArant.htm ... a%20Levers

John.T

You could first try cleaning and lubricating the brake cables. If they get sticky the rear brake does not fully return and leaves the lever a bit slack. The return spring in the lever is not strong enough to stop the lever rattle on its own.