Avid Juicy 5 2007 Discs

Johnny Napalm

Hi.

I need to replace my 'V-Brake' system because it's getting very frustrating in these wet/muddy conditions without discs.

I could get the 'Avid Juicy 5 2007 Discs 185mm' from CRC for £70.00 each (may as well order them with my new forks), which would then mean that I will have to fit them myself.

My LBS (James) have the same discs in stock for £85.00 each. Obviously I will save money getting them from CRC, but having never fit discs before I am a little apprehensive. I'm not sure as to whether I should pay the extra (but it's a lot!) & get them fit at my LBS.

I'm a little confused as to what I would need if I fit them myself...

1) Would I need a 'bleed kit'?
2) Also, how do I make sure that the rotor I order will not be too big/will fit etc? Is there a noticeable difference between say, 160mm & 185mm?
3) What's the difference between 'IS' & 'Post'? I assume the discs will come with adaptor to suit both?

Again, sorry for the dumb questions, but if I am to fit them myself (I'd rather because that's the best way to learn) then I want to make sure that I have everything I need and all is correct.

Cheers.

streako

When I got my Juicy 7's they came ready to fit. The only thing you may have to change is the length of the hose as my front was a little too long.
IIIRC they have IS mounts, which should fit most bikes.

baccaman21

It's good to be apprehensive, that's quite a major switch over johnny.

Although I don't experience using them myself, the avid juicy brakes are a good consideration, I've heard good things about them, but I'm sure as is always the case in these things there will be people who will diss them.

To answer your queries directly;

1. you will need a bleed kit if you need to alter the length of the hosing at all to fit you bike, whether that's physically too long or short or if the hosing goes through any parts of the frame that requires the calipers to be removed.

2. Rotor size is personal choice and depends on your riding style and what you expect from the stopping power you require - generally bigger equals more stoppage - but then if the calipers have more surface 'grip' then that also means more stoppage, so it depends.

3. IS & Post are different fitting standards and change depending on what type of discs you get, and the type of fork/frame you have - because of the many variations you will find that you need to get the correct adaptor specifically for your needs, it won't come as standard. Your LBS will know anyway so I wouldn't worry about that.

All that asides BIGGEST thing you need to consider is whether your bike is already disk capable. It's all well and good wanting hydraulics but there's the big issue you haven't even suggested in your post.

WHEELS!

That's not just the fittings on the forks and frame, but also the wheels require disc ready hubs... and that in itself can be an expensive setback and also offer additional options.

The other consideration is whether there is space on the frame for discs to fit, some bikes don't have enough space on the chainstay to allow the rotor to fit.

You need to check these too if you're gonna make the switch.

Good luck!

Johnny Napalm

Cheers, guys.

My bike is 'disc ready' (I do have disc hubs & the frame is also disc compatible). I'm just trying to weigh up the hassle vs price scenario.

There is also one more thing...
...I'd like to get all this sorted for next weekend!!! :roll:

BoredHousewife

I bought a Juicy 5 a little while ago, it came already set up and i didn't have to bleed it or anything, I didn't run it through the cable guide on my forks though through lazyness, just ziptied it. I'm running the 185 rotor and stopping power is good. No probs so far

tom_tom

I'm looking at these brakes aswell, check which mount you need and then all adaptors etc you need will come with the brakes. Also, juicy's are supposed to be some of the easiest brakes to set up, just mount the lever, loosely screw in the mounting bolts on the caliper, squeeze the lever, and tighten the caliper bolts. Sorted. Oh and if you order from CRC you should easily get them ready for next weekend.