Are there any 'must have' cable pulling tools? Or just go for the cheapest I can
unless your cables are trashed and full of gunge theres absolutely no need for a 3rd hand tool to pull a gear cable – only ever found them hand for initial pull to bed in all the cable ends and prevent the illusive “cable stretch*” of new cables or setting up canti brakes
* new cables do not stretchPosted 4 years ago
During the Lemming Trail Race yesterday I came across a young lad (no not like that’ I was riding FFS) he appeared to have some mechanical issues and it turns out his cable had slipped through as he changed gear due to a loose bolt. All he was carrying was a puncture repair kit, when I asked him if he had far to go he said “Eastbourne’. We were only about 60 miles away :-).
Anyway to the point, he had no tools and I thought I was well tooled up but found myself lacking pliers or more specifically one of those 4th hand type tools that pull cable through. Made me realise that my ride would have been over or very tough just due to the lack of toolage if that had been me so I am going to purchase one of those tools. Any better than the other?Posted 4 years agoNorthwindSubscriber
New cables can stretch, and bed in, and the cable ends can move around, and all that good stuff. But there’s no need for a 3rd hand tool or pliars, just wind in the barrel adjuster, pull the cable as tight as you can by hand, tighten up, adjust.
(there are tricks you can use, frinstance you can nip the bolt up then pull the exposed bits of cable out like a bowstring, takes up any slack better than just pulling the end. Then release, pull slack through, tighten)Posted 4 years agoz1ppyMember
trail_rat – Member
unless your cables are trashed and full of gunge theres absolutely no need for a 3rd hand tool to pull a gear cable
I’d agree with this, you can get cable near enough by hand, and then tweak them up using the shifter/mech barrel adjuster. Thats what it for after all.
takisawa2 – Member
new cables do not stretch
Oh yes they do’oo.
I agree taki that they do need adjusting after the inital build, but it’s been reported that this is as more due to ferrules bedding/sitting into the cable stops, than the cable stretching.Posted 4 years ago
your mechs go out of adjustment but your wire rope doesnt stretch.
“The engineering of wire rope is fundamentally the same for bridges, elevators, or bicycle shifters. The loads applied to these cables, or wire ropes, is far too low to induce any permanent elongation”
just thought id throw that out there.
the term stretch is a throw back from when cables were made differently to today and the tension would pull the strands together making the cable longer – today youll pop the head off the cable before you get any measurable stretch in the steel wire rope.Posted 4 years ago
gee – tell me why your mech would move in both directions when it goes out of adjustment ?
the action that makes your mech go out of adjustment is the cable outers getting compressed and settling into the ferrules and cable stops. then as it gets older the inner cable wears grooves into the outer meaning it goes out of adjustment by the direct route to the mech being shorter through the groove than it was
FWIW theres more chance of the massive steel cables stretching over the ones on your bike – the resistance on your mechs is not enough of a load
you realise folk have tested this ? – the head does actually pop off before you get any measurable stretch in a modern stainless steel cable.Posted 4 years ago
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