P
Paul Boyd
Guest
On 29/08/2007 19:58, coyoteboy said,
> Lots of the top end systems are open - its how they get automatic pad
> wear adjustment. Certainly most of the systems I've seen on the trail
> have been open - closed just makes no sense - need to adjust pad on the
> fly and back it off if you heat the caliper up.
OK - I didn't realise the first bit, but the second bit? That's why
Shimano have the bladder in the lever - so that as the fluid expands the
air in the bladder compresses to compensate. Perhaps I'm
misunderstanding what is meant by a closed system.
> And if you want to bleed them, which isnt really needed for a decade at
> a time, you just lob a piece of hose on the nipple, take the top off the
> caliper and squeeze, undo, tighten, release a few times and its done -
> not even as complex as replacing a cable!
Surely that's the same for any system, except I assume you mean take the
top off the lever?
--
Paul Boyd
http://www.paul-boyd.co.uk/
> Lots of the top end systems are open - its how they get automatic pad
> wear adjustment. Certainly most of the systems I've seen on the trail
> have been open - closed just makes no sense - need to adjust pad on the
> fly and back it off if you heat the caliper up.
OK - I didn't realise the first bit, but the second bit? That's why
Shimano have the bladder in the lever - so that as the fluid expands the
air in the bladder compresses to compensate. Perhaps I'm
misunderstanding what is meant by a closed system.
> And if you want to bleed them, which isnt really needed for a decade at
> a time, you just lob a piece of hose on the nipple, take the top off the
> caliper and squeeze, undo, tighten, release a few times and its done -
> not even as complex as replacing a cable!
Surely that's the same for any system, except I assume you mean take the
top off the lever?
--
Paul Boyd
http://www.paul-boyd.co.uk/