The sram ones of the same design are much better, but the ones that have faired the best are the Scott ones I found in a bag of bits at a bike jumble. My guess is that their logo is raised so gives them a bit more grip/strength?
The Clarks ones have always worked for me - the ones with the opening that looks like Jaws' teeth from James Bond. Lifeline do some spiral ones that look like they wouldn't go anywhere also (not tried).
Is there a better version of these frame protectors? These Jagwire ones that came with cables keep half popping off. Very annoying.
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