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SRAM X.O or Shimano XTR

Old 05-19-07, 05:53 AM
  #76  
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Originally Posted by mtnbiker66
Yeah, no sense of humor.........
I cant keep arguing with a simpsons fan....I have too much respect for Matt Groening
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Old 05-19-07, 06:16 AM
  #77  
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Originally Posted by willtsmith_nwi
8 is not divisible by three. Perhaps there are eight click models designed for double chainwheels. 4 clicks each .....



It's nine clicks. A lot of people run the SRAM gripshift on the left for the ability to trim out derailleur rub and triggers on the left.

9 spaces, 8 clicks between gears.
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Old 05-19-07, 11:20 PM
  #78  
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Originally Posted by maddmaxx
9 spaces, 8 clicks between gears.
Dohh, I stand corrected.
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Old 05-21-07, 06:07 PM
  #79  
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Originally Posted by MattP.
<lame personal attack removed>Just take a deep breath, admit you were wrong, and go ride your paved "mountain bike" trails in Florida.
Paved? http://homepage.mac.com/weseubank/PhotoAlbum.html
http://www.omba.org/
http://goneriding.com/RAZORBACK.htm
Suck it mini Pete
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Old 05-21-07, 06:32 PM
  #80  
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Nice job man...looks good, was planning a trip to florida to visit some friends and family and now I want to bring my bike lol.
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Old 05-22-07, 12:38 AM
  #81  
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Good one!
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Old 05-22-07, 12:45 AM
  #82  
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Originally Posted by scrublover
Oh, that's far too easy of a suggestion. That doesn't allow for countless threads of e-spec, inane disagreement, baseless fact, and pure opinion.
Here were my alternate suggestions:
1. Choose the lighter groupset.
2. Choose the one that looks better to you.
3. Screw keeping it the same and run em both.
I don't have a fourth...
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Old 05-22-07, 02:19 AM
  #83  
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Originally Posted by probable556
Quite honored by the sig. Spread the good word brother.
Thanks brah .Yeah, i like it (even though i am a SRAM fan). Might even make bumper & bike stickers out of it, providing there is no patents on it that is.

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Old 05-22-07, 02:31 AM
  #84  
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Originally Posted by z415
really really fast
^That is fast!
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Old 05-22-07, 02:37 AM
  #85  
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Originally Posted by MattP.
Hey dumbass!
What?!
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Old 05-22-07, 04:30 PM
  #86  
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Originally Posted by Raiyn
Yeah you're good. The whole point of being here is to learn and share knowledge
Precisely, which is why I'm going to answer the guys question even though I was considering not chiming in

Disclaimer - I am currently a SRAM sponsored rider, riding their full setup including brakes, fork, and drivetrain. I am not riding anything from Truvativ (part of the SRAM conglomerate) though. However, I also have a few full seasons of experience with XTR, though I cannot really comment on their '07 line as I have only about 5 hours of riding on it, and on a friend's bike. I did race the '07 XTR though, so I'll still give my input. I'm going to be as objective as I can be, and forget about the fact that I get my equipment for free

Views on XTR: exceptionally well designed and manufactured components that server their purpose without any major flaw. Very light, especially the crankset and rear mech. Since much of my racing is on the east coast USA, my views on components reflect how well they perform in mud, and XTR always rode well. I enjoyed haveing XTR on my bike last season.

HOWEVER

SRAM X.O is, I believe, the superior component group. Why? Both groups are light, efficient, and reliable... but a few small differences have a large effect on the quality of each group. The three I will explain are the increased spring tension of the X.O rear mech, direct cable line, and the 1:1 actuation ratio.
Spring tension: seems like no big deal. In fact, it often seems like a pain in the a$$ while trying to get the rear wheel in and out... but in reality, especially in a racing situation, the increased spring tension provides higher chain tension and a more stable rear mech, cutting down on chain slap and the freak problems that it causes. Chain slap can induce chain suck, poor shifting, and mis-shifting, not to mention the fact that it's loud, annoying, and messes up your chainstays. When racing, little things like this make a big difference to me because there is a greater chance of me getting through a race with fewer mechanical issues.
Direct Cable line: again, a seemingly insignificant change. BUT, when you race 30-50% of your races in decent amounts of mud, it makes a BIG difference! With XTR, shifting performance would suffer mid-race as mud built up in the loop the cable makes near the derailleur. This also increased my chances for a mechanical, which is never good when racing... plus that section of housing, and as a result the cable as well most of the time, had to be replaced quite often. A bend in housing is never efficient.
1:1 ratio: At first, I honestly didn't think this was going to make any difference. Turns out I was wrong. I have no idea why, mechanically, but the 1:1 ratio seems to provide a wider range of adjustment in which the derailleur "works." By this I mean the adjustment can be slightly off and the rear mech still shifts very well. With XTR, this was never the case. I was constantly adjusting the rear mech, even mid race. Things like mud or slightly bending your der hanger can change the adjustment of your mech, so having some leeway is AWESOME! I finish more mud races these days with a perfectly functioning rear mech (even though it may not be perfectly adjusted) than I ever did with XTR. For those of you familiar with road components, the comparison is similar to that of DA and Record - DA is easier to adjust and provides a greater margin of error with adjustment, record is more finicky but shifts better when adjusted properly. They both shift well, but record shifts "perfectly" (I think). Same thing with these mtb components - both shift well, actually XTR may shift better, but because of the nature of mtb racing I prefer a group that works in more conditions rather than one that works a little bit better in only perfect conditions, then goes to hell in poor conditions

My views are based 100% on effectiveness and reliability while racing, mostly under extreme conditions. The differences are small, but significant to me.

It may sound like I am biased, but really I would have no qualms with saying XTR was the better group despite my sponsorship if I thought that was the case. They don't know who I really am anyway

Last edited by ZeCanon; 05-22-07 at 06:01 PM.
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Old 05-22-07, 08:24 PM
  #87  
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I can't believe I just read through all of this. It really is personal preferance. There will be people who say X0, there will be people that say XTR, I'm going to say Ham Sandwhich.
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Old 05-23-07, 01:15 AM
  #88  
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Ham Sandwich, hmm yummy!!!

Wow this thread havent end yet, amazing!!!!, anyway SRAM has a major advantage in MTB because of they are using a stiffer spring then Shimano (I tested pulling SRAM and Shimano RD and I can feel SRAM is harder to pull then Shimano). Anyway, about the direct cable routing, check out the Shimano Shadow RD, looks very promising and they will also be a XTR version.
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Old 05-23-07, 09:38 AM
  #89  
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Originally Posted by wheelhot
SRAM has a major advantage in MTB because of they are using a stiffer spring then Shimano (I tested pulling SRAM and Shimano RD and I can feel SRAM is harder to pull then Shimano).
Why would a harder RD pull translate to an advantage?
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Old 05-23-07, 11:05 AM
  #90  
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A stiffer spring will offer more force to switch gears.. in one direction anyway. And it should help keep the derailleur more stable. If I remember correctly, in the mid '90's shimano softened their springs and there was actually an aftermarket spring available to replace it.
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Old 05-23-07, 12:34 PM
  #91  
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Originally Posted by Curtis_Elwood
Why would a harder RD pull translate to an advantage?
A stronger spring results in more reliable shifting under heavy load, especially on a low-normal setup.
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Old 05-23-07, 03:33 PM
  #92  
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Well a derailleur shifts by derailing into other sprocket, so when the spring that is used to shift is soft, it will result in a faster shift but because of mountain bike terrain, the derailleur will move up and down too much and could result into a mis shift.
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Old 05-23-07, 07:53 PM
  #93  
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and a stiffer spring keeps the mech working in mud...
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Old 05-23-07, 07:55 PM
  #94  
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Originally Posted by MattP.
x.0 looks like it could beat XTR in a fist fight...
never had a sram derailluer fall apart, had a shimano derailluer where both pulleys came loose, scary stuff
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Old 05-23-07, 07:57 PM
  #95  
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I've had both fall apart on me... it happened to be one of the lessons that taught me there is such a thing as over greasing.
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Old 05-23-07, 08:03 PM
  #96  
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i have broken both, hitting stuff but only the shimano has fallen apart for no reason, the screws that hold the bottom pulley in is held in by lock tit and should never come out
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Old 05-23-07, 10:31 PM
  #97  
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I want to run XO gripshifts so I'm Going to go Sram...But for the record...my plain old XT works fine, shifts smooth as silk and never fails mud or not.
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Old 05-24-07, 08:45 AM
  #98  
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Originally Posted by wheelhot
Well a derailleur shifts by derailing into other sprocket, so when the spring that is used to shift is soft, it will result in a faster shift but because of mountain bike terrain, the derailleur will move up and down too much and could result into a mis shift.
My XT RD with a "soft spring" shifts flawlessly.
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