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mtbr member
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Help Me decide '08 Shimano XT Disc Brake System vs. Avid Juicy 7's
Its time to upgrade the brakes on my Specialized Epic. I've got it narrowed down to the Avid Juicy 7 levers and calipers and the new radial style Shimano levers and caliper. I thought I had settled on the 7's (pricepoint.com has an awesome price on them till the end of the year) until I read reviews on this site. Seems that alot of people have had problems with noise, chatter and modulation with them. What is everybody's take, are the Shimano XT's a better unit, I can't find any reviews on them yet. I must say I prefer the look of the new XT's over the Avids, but my final decision will boil down to what is going to perform the best not looks.
Thanks,
Andrew
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The XT brakes are less powerful and harder to bleed but much better in every other way. Even though The Juicy 7 have an easy to reach knob to move the pad contact in I think the XT adjustments are easier to use. I have had no problems with my XT brakes unlike my Juicy 5 which constantly move-even though the bolts are tight, they also squeak and get some very nasty gobble-particularly bad on the back brake. And about two weeks before I had the Juicy 5 replaced they blew-up and oil squirted everywhere.
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and B+W too
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I like Magura brakes best, but between the two options you list I'd go with the XT's. I know people like avid brakes but seeing the posted problems on this forum and in the review section it seems a no brainer choice.
I'm very keen to hear what people think of Formula's new brake 'The One'...but haven't heard anything yet.
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mtbr member
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Other than the constant noise, I've always been a fan of the Juicys but I recently found a great price on a set of '08 XTs so I thought I'd give them a try. The XTs are silent, powerful and have a huge amount of pad clearance.Lever reach is adjustable 'on the fly' without tools even with gloves on. The lever feel is great and the 'servo wave' action means that even with massive pad clearance the lever activates without much movement.
I'm running them on 180mm front / 160mm rear alligator serrated rotors and they are at least as powerful as the juicys.
The only negative is that the Shimanos are a PITA to set up and bleed.
I've currently got bikes with '06 XT, Juicys and the '08 XT. I'd rate them:
'08 XT-------> Juicy ----> '06 XT
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he who goes without food
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I moved from Juicy 7 to Shimano and couldnt be more pleased, much better modulation and less lockup issues you can be aggressive with the braking and not worry, like ABS
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-> SickLines.com <-
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Ever consider the Formula k24's? One of my favorite brakesets. Otherwise i'd go with the Shimano's over the Juicy's.
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mtbr member
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i love my juicy 5's took a while to dial in but now that i have them perfect there silent. the modulation is great and its a very powerful brake. i rode j7's and notice no difference even with the adjustment knob. as for xts i have only rode them on the front of my friends slalom bike. the brake had some fade problems and seemed to have much less power then the juicy that was on the rear.
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I should be studying...
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I've been using Shimano brakes since the original XT quad piston model came out. I also have a set of the original XTR disc brakes. I've been very satisfied with both sets right from the beginning. The current XT's are part of a refinement process that started with the original XTR models. Aside from the inital setup, I've never had to bleed either of my shimano brakes. They make minimal amounts of noise (depending on pad compund) and have a good balance of power & modulation (again, varies with pads & rotor size). I prefer the use of mineral oil over DOT fluid--this may not be considered as an advantage by some. I also think the monoblock caliper is superior to the bolted together avid ones (just my $.02). In all honesty, I think that out of all the components made by Shimano, there disk brakes are their strongest offering.
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 Originally Posted by EGF168
The XT brakes are less powerful and harder to bleed but much better in every other way.
I would not agree with the statement. I have a dual piston, XT brakeset, and Magura Marta SLs.
I cannot tell the difference between the XTs and Martas when it comes to performance. Also, I have seen that Shimano's brakesets are one of the easiest ones to bleed.
The only noticeable difference between my XT and Martas (without being too picky) is the weight.
"Winners never quit. Quitters never win. But those who never win and never quit are idiots."
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mtbr member
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I think i am probably going to go with the XT or XTR's. Has anybody purchased any of the new stuff from overseas on ebay? I'm looking buying some from ebay user zingind. Some people have said they like the Maguras and Formulas better than either shimano or avid. Why is that? How do they compare cost/performance/weight wise?
Andrew
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CRC is a great place to buy if they have the '08 available yet.
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mtbr member
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I don't know where the posters saying XT's are harder to bleed and set up are coming from. I've owned Shimano's, Avid Hayes and Hopes. Shimano's are one of the easiest to bleed, and are just as easy as any of the other post mount systems to set up.
XT's rock, but I think you can't go wrong with either.
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mtbr member
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Originally Posted by AUStumpJumper
I think i am probably going to go with the XT or XTR's. Has anybody purchased any of the new stuff from overseas on ebay? I'm looking buying some from ebay user zingind. Some people have said they like the Maguras and Formulas better than either shimano or avid. Why is that? How do they compare cost/performance/weight wise?
Andrew
I got mine from here:http://cgi.ebay.com.au/NEW-2008-Deor...QQcmdZViewItem
No problems, got them in about 3 days (Australia)
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mtbr member
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Originally Posted by STS01
Man that rear hose is about 10 inches longer than I need for my medium frame, how hard is it to shorten them and re-bleed?
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Originally Posted by AUStumpJumper
Man that rear hose is about 10 inches longer than I need for my medium frame, how hard is it to shorten them and re-bleed?
Hose shortening has been covered before (I'm too lazy to do a search for ya ). In most cases it's possible to shorten them without even needing to do a bleed.
And as far as I know the brakes should come with a spare olive & insert anyway.
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... may not need to pump anymore as the oil will get drawn naturally though the system due to gravity ... more oil and less bubbles coming out of the clear tube ... keep filling reservoir & lightly tap the caliper ... repeat ... might have to pump the lever ever so slightly ... until no more bubbles comes out with the oil at the caliper end ... tighten nut ... hold lever in ... release and tighten nut ... a few times ... lever WILL stiffen ... 
