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Old 06-10-05, 11:05 PM   #1
atomicaxl
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upgrades on brakes for a hardtail jumpbike

i currently use a deore 555 hydraulic brakes for my hardtail jumpbike wd a Jr.T fork. i am really annoyed by the squeeking sound it produces when braking in hard pressure. i am considering selling it and wants to upgrade on an avid juicy 5 wd "8 rotors. is it worth the upgrade?
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Old 06-10-05, 11:08 PM   #2
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Try cleaning your rotors first. Use isypropyl alcohol and a clean paper towel. Youre pads may be contaminated. Do you know if you have gotten oil on your rotors?

Just curious why you have a Jr T on a DJ bike...
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Old 06-10-05, 11:16 PM   #3
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The deore hydro's are commonly known to suck. If the only purpose is for dirt jumping, I'd ditch the front brake, and put an Avid BB7 on there with Odyssey Slic Kable for the brake cable. Using that as the rear brake set up currently, will have both front and rear set like that when I get back home. Use the money that was saved and put it towards a marzocchi DJ1, sherman jumper, pike, or Vanilla RLC or 36.
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Old 06-11-05, 01:40 AM   #4
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Deore Hydro's aren't the worse brkaes around, I know a couple of people who are happy withg them. If it's on a DJ bike you don't need good brakes so just leave them or even take off the front brake as it is not needed and just gets in the way. Just out of curiosity what kind of bike are you using? and why put DC's on a DJ bike, you want something with little travel, like around 75-100mm.
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Old 06-11-05, 05:30 AM   #5
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Why do you have a XC brake, on a downhill fork, on a jump bike? Doesn't it ride really crap?
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Old 06-13-05, 09:56 PM   #6
atomicaxl
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i use my hardtail bike for urban assault. because of my weight 230 lbs., i dont think single crowns can handle me... and i got the brand new '03 Jr. T for just around $280. quite affordable for a DC, isn't it?
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Old 06-13-05, 10:06 PM   #7
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my set up:
frame: taiwan made alloy hardtail, reg. size
heatset: tange japan
wheelset: sun doublewide rims, ringle abbah hubs, dt swiss competition spokes& nipples
brakes/ lever: deore 555 hydraulic
shifters: xt 760
F/R derraileurs: xt 760
cassette: xt 760
chain: dura ace 7701
crankset: truvativ holzfeller 38/28T
bb: truvativ gigapipe 4 bearings
tires: maxxis hookworm 2.5
fork: marzocchi Jr. T '03
stem: truvativ hussefelt
handlebar: answer protaper
saddle: da bomb
pedal: shimano 646 clipless (i use for dh racing) not much of a technical thing

Last edited by atomicaxl; 06-18-05 at 05:49 AM.
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Old 06-13-05, 10:25 PM   #8
alcahueteria
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Yeah, I think it sounds pretty nice. I was looking at getting a JrT for an urban assault bike and these guys gave me crap too.
Personally my perspective was that I worry enough that I suck I don't need to worry about compensating for my bike sucking. So a nice fork with lot's of travel can make up for my mishaps and weighing 210 didn't seem such a bad idea for a DC either.
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Old 06-14-05, 10:31 AM   #9
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You're worried about a single crown fork snapping, but are quite happy riding a "taiwan made alloy hardtail". Yes I know all bike are made in some factory in Taiwan, but anyway...
My point was that it might ride a bit better with a shorter travel fork, but if you're happy with it why change.
In response to you're orrigonal question, you will probably notice an increased performance with the 8" rotors. I can't say whether it's worth it, depends on how much you have to pay etc.
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