Shimano STi gear cable query?

Discuss light weight issues concerning road bikes & parts.
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dieselgeezer
Posts: 92
Joined: Sat Jul 31, 2010 4:57 pm

by dieselgeezer

Can anyone help with the following query?
I can get Shimano stainless steel gear inner for £1.75 each or Shimano stainless steel PTFE coated gear inner for a wacking £7.50 each. Will I notice any difference in performance & would it be worth the price difference? I will be using Shimano SP41 outer.
Many thanks

by Weenie


thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

The PTFE ones are supposed to be smoother. At least one bike company tested this and found their regular stainless one to be smoother, both tested in new sections of sp41 housing around a bend. Possible that the stainless performance would degrade faster, though.
In the end, it's that close between the two, so I'd go with plain stainless.

bikedoc
Posts: 642
Joined: Thu Aug 16, 2007 3:16 pm

by bikedoc

The ptfe ones are slightly better, you only really notice this if the cable routing is bad. I tend to use them as a last resort if I can't get the normal cable to work as well as I like

dieselgeezer
Posts: 92
Joined: Sat Jul 31, 2010 4:57 pm

by dieselgeezer

Thanks for the sensible replies. Can always rely on WW. I think I'll try the PTFE one for the rear & use the standard one for the front & see how it goes.

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