Hope Tech X2

super_claret

I'm looking for a replacement for the Avid juicy 5's on my Trek Fuel EX8. I can't stand the squealing any longer and have tried everything to stop it!

Not being too technically minded ( I can tackle most things if I have a step by step guide )
I have to confess at being a little intimidated at all the technical speak etc.

My question is, would the Hope Tech X2 work with the Trek Fuel EX8 without having to change the rotors and if I buy the ready to fit (bled) option, are they easy enough to fit?

I notice that there is an option to purchase with a floating rotor. What is a floating rotor and do I really need one?

Thanks in advance

ravey1981

Dont bank on hopes not squealing as i have two sets and both do (older models granted).

The pre bled brakes are very easy to fit but you may find you need to shorten the hoses to tidy them up a bit but this is not difficult (see hope videos on youtube) If the rotors are the same size (diameter) then they should work but they would also need to be the same thickness (about 2mm ish) and the braking surface big enough for the pads.

Floating rotors have a steel disc mounted to an aluminium carrier, the theory is that they dissipate heat better and there is also a little lateral movement which helps stop pads rubbing on the disc (this should not happen if they are set up correctly though)

I have floating rotors on my bikes, the main reason being that they look cool

ravey1981

Just another point....have you had you're disc mounts faced properly (any decent bike shop will do this for you) it ensures the calliper sit squarely to the disc surface and can help to stop squealing brakes. Make sure all bolts and fittings are tightened properly and also check your pads aren't glazed and decontaminate you're rotors with brake cleaner or iso alcohol.

super_claret

Thanks ravey1981

When purchasing spare sets of brake pads, how do I identify the correct pads for the brake system, especially if I wanted to purchase 3rd party ? I know it might sound like a dumb question but when I've looked online, there doesn't appear to be a compatability chart with the various options.

I think I need to purchase a Mountain Bike Maintenance book, can you recommend one that's up to date.

ravey1981

If you search an online shop for "avid juicy 5" (for example) it should come up with compatible pads (chain reaction has them but out of stock)

You're friendly local bike shop is a good place for things like this though as they can usually supply or order them in for you.

I think the park big book of bicycle repair (2nd edition) is reasonably up to date. Also look on the park tools website as they have loads of tutorials etc on there.

Happy to help

ravey1981

http://www.wiggle.co.uk/p/cycle/7/Avid_ ... 300003709/

diy

and scrubbing the rotors with a kitchen scourer, to buff them up helps, as does making sure your wheels are seated correctly so that the pads don't contact the rotor arms...

you might also want to try softer pads, such as the superstar organics.

super_claret

DIY

I'll try reseating the wheel because it does appear to be rubbing at some stage of rotation.

diy

If they are rubbing then you also need to make sure they are properly aligned. slacken the adjustment nuts clamp the brake up, tighten nuts and release

Anonymous

Changing brakes alone will not eliminate squael. If there's something awry in your setup, then it would be best to sort that first.

ride_whenever

new pads + clean the rotor, spot the mounts then replace the brakes!

Avids are usually okay, although my housemates scream like no ones business. My hopes (mono mini silver ones) only squeal when they're really wet.

super_claret

I've read many times that even techies have problems ridding the Avids of squeal and replacing them has been the only solution.

I have to admit though, I'd rather solve the problem and save a few quid.

Many thanks for all your suggestions, I'll have another look at the brakes tomorrow.

diy

When you think about it logically - there cannot be a reason related to the brakes which means that avids squeel more than other brakes.. They are known to turkey gobble, but that is rotor design not brake design. Ultimately it is the pad and rotor causing the noise.

IME people overlook basic brake "hygiene", i.e. making sure they line up properly, using quality brake cleaner to make sure they are clean, lubing and re-seating the pistons as part of routine service. Using the right type of pads for their riding.. i.e. not just buying the top of a range, just because it must be better.

However, ebay is full of people who are selling off slightly used brakes for upgrades and low prices, so long may the misunderstanding continue