bike is a klein attitude hardtail, not sure whether its a 2003 or 2004 model - purple/green lacquered paint job.

ever since my mate had it, if he leaves the bike for more than a week, the brakes are seized on. they've been serviced 4 times now by a local reputable bike shop but still continue to play up (hayes hydraulics, not sure of model).

at the moment they're the best they've ever been but still bind on, preventing both wheels from free-wheeling properly - they stop after 3 revolutions.

is this a common problem with hayes hydraulics ?

this is the only problematic disc setup among the bikin bunch - avid cable and shimano hydraulics are fine.

any help appreciated,
rifty.

anyone ?

I've had a similar problem happen with my HFX-9s. The brakes were dragging giving only about 3 turns when spinning them.

My quick trail fix is to undo the post mount bolts, pull the lever and hold it on. Then re-tighten the bolts. This re-centres the caliper over the disc and stops the drag.

However, if both of the pads are touching the disc you either need to use it more or remove the pads and push the pistons back in with a blunt implement.

Good luck

remove the wheel and pads and squeeze the leaver a couple or three times. If only one moves push it back in with a tire leaver and hold it back and squeeze the leaver again a couple of times to free the sticking / stuck piston. Flush the exposed pistons with disc cleaner to remove and grit and dirt and use a eye dropper to put a drop of brake fluid (in my hopes its dot 5.1 just check first) onto each of the pistons and push them back in. (this should lubricate the seals and wipe away any excess re insert the pads and replace the wheel and hopefully that should solve it if it doesnt they might need new piston seals

Hi All. I'm new to this so please help. I'm desperately trying to bring my Klein Attitude (1999 or 2000 not too sure which but it's the red one. How stupid do I feel I don;t even know my own bike!) up to date by installing disc brakes.

Having taken it to a couple of stores they haven't been able to help as the claim it is not compatiable (I believe it is a MircoDrop frame design?), however, they have mentioned that old school discs could fit? The Hope C2's have been mentioned but I was told that the Attitude suits a Hayes system? Does anybody know the model of this brake or any others that would be suitable??

Look forward to hearing from you in anticipation.

David

Could you advise what brake system I could use for my Attitude 1999/2000 (red one)?

Believe it's an old school system and either a Hayes or Hope C2?

Cheers,

David

If I recall that version of the Attitude correctly it has some of the smallest dropouts ever made. In fact, some testers struggled to keep the rear wheel in.
Therefore I would suggest a rear disc brake is a bad idea.
You can get brakes to fit frames without disc mounts such as your Klein, but because of the way they mount they are not really suitable. The dropouts are simply too small, and the rear wheel could easily pop out under braking.

This doesn't mean you can use disc brakes at all though - you can still fit one up front. Something like 90% of braking effort comes from the front wheel anyway so disc front, V rear is an effective package.
You could further improve the rear braking with a ceramic rim.
My old Marin uses an Avid cable disc front, V at the back and a rear ceramic rim. The cable disc means the front brake levers match - I hate odd levers! This arrangement has virtually all the benefits of the Hayes system on Klein, but works without a rear disc mount.

What Andy said works. (I did the same thing last night) Its just the crap working its way in. Use my now patended method of using an old set of pads whilst doing the above and hey presto. You will have cleaned the pistons and both should be moving freely. Then do the loosening the bolts idea and centre the caliper.

I would bleed the brake as well (Like i did last night ;-)

hobo, that was an 04 thread, it was dug up by grayster

Shit, i'm tired. Got to go to bed. Thanks Mike