Does my logic work here... Centreing calipers

Northwind

Aligning/gapping brake calipers... Does this work?

1) Lloosen both bolts fitting the adaptor to the frame/fork (IS mounts)
2) Pull the lever. The pistons will do their thang and when fully out, will move the caliper to be centred.
3)Nip up bolts, release lever.

I've not tried this, it sounds too simple, I might be missing something glaring obvious :roll:

drewp2008

spot on mate

sniper68

Thats exactly how its done 8)

Northwind

Lovely- cheers! It just seemed a bit too easy I did it by eye last time and that was, basically, DIY HELL :roll:

nicklouse

Northwind wrote:

Aligning/gapping brake calipers... Does this work?

1) Lloosen both bolts fitting the adaptor to the frame/fork (IS mounts)
2) Pull the lever. The pistons will do their thang and when fully out, will move the caliper to be centred.
3)Nip up bolts, release lever.

I've not tried this, it sounds too simple, I might be missing something glaring obvious :roll:

Nope will do nothing.

but if you mean Post mount caliper to adaptor bolts then yes fine.

an IS caliper to forks needs shims/washers.

Northwind

Ah yes, you're right- my pushbike jargon isn't too good, i've seen this referred to as IS mount previously and assumed that the person talking knew what he was talking about, obviously not. I'm good with spanners but not jargon

nicklouse

have a look at the disc brake sticky for all the info and tech drawings.

Northwind

Yeah, I would have done if I'd been in any doubt as to the terminology, but I'd picked it up from someone who's usually reliable so I wasn't.

stumpyjon

It can go wrong, if one of the pistons is a bit sticky you can end up with them not centring properly resulting in one pad closer to the disc than the other. I sometimes end up centring my Juicy 7s by eye although that can go wrong as well sometimes :roll: