Advertise on Bikeforums.net



User Tag List

Results 1 to 15 of 15
  1. #1
    Senior Member
    Join Date
    Oct 2006
    Location
    Fishers Indiana
    My Bikes
    Longbikes Slipstream
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    V-brakes - differences XTR vs XT vs LX

    I don't have V-brakes today and I'm ready to upgrade. What are the primary differences between these three models of V-brake: XTR M970, Deore XT M770, and Deore LX M580?

    Price, weight, and color/finish I can understand, but what am I going to experience in performance, wear, and maintenance that is different and noticeable from one to the next?
    Longbikes Slipstream

  2. #2
    Senior Member
    Join Date
    Jul 2007
    Location
    Maryland
    My Bikes
    Bridgestone '90 RB-1, Giant TCR Alloy, 90's mountain bikes galore.
    Posts
    137
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm not particularly fond of the parallel-push feature on the XTR calipers, which require maintenance on the pad pivots. I think it's an unnecessary complication to an already solid design.

  3. #3
    Creamy pack filling stevemtbr's Avatar
    Join Date
    Aug 2007
    Location
    Nine Mile Falls, WA
    My Bikes
    Trek 8000, Co-Motion tandem, Co-motion Espresso, Yeti Cross
    Posts
    653
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Stay away from Shimano all that linkage robs you of stopping power. Unless you go with the new XT's that don't have the linkage. If you go with Avid single Digit 7's you won't be disapointed. You can usually find them on E-bay for a good price.

  4. #4
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,186
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    If you're changing, I won't use the word upgrade, from cantilevers you'll need new brake levers. Good luck

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  5. #5
    Bike Junkie roccobike's Avatar
    Join Date
    Jun 2005
    Location
    South of Raleigh, North of New Hill, West of Harris Lake, NC
    My Bikes
    Giant OCR-C, Specialized Tarmac, Specialized Stumpjumper FSR, Stumpjumper Comp, 05 Rockhopper, 88 & 92Nishiki Ariel, 01 Bianchi Campione, 87 Centurion Ironman, 92 Paramount, 97 Lemond
    Posts
    8,878
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have the older XT V's with the parrallel-push on my 05 Rockhopper hardtail. They do brake better than the V's that are similiar to the DeoreLX version in the OPs post, but the difference is not substantial.
    As for cantilever brakes, we have 5 MTBs with cantilever brakes including 2 with the older, Deore design that is supposed to be superior. We also have 4 MTBs with V brakes. Any of the bikes with V-Brakes can out brake any of our bikes with cantilever brakes. No contest.
    One of my old Rockhoppers with cantilever brakes is in the process of being converted to V's.
    You will have to replace the brake levers.
    Roccobike BF Official Thread Terminator

  6. #6
    Senior Member
    Join Date
    Oct 2006
    Location
    Fishers Indiana
    My Bikes
    Longbikes Slipstream
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the replies. I understand that levers will be needed too. I a similar impression about V-brakes vs cantilevers as even our toy store bikes with unbranded V-brakes do better than my cantilevers with kool-stop pads and a lot of fine tuning on the adjustments.

    I'm just trying to understand what the differences are from base model to top model, as it seems like any of them will be superior to what I have today. I probably wouldn't buy the top model unless I understood why it costs 2 or 3 times as much as the other models. I expect there are differences, I'm just not able to spot them in the specs and was hoping to hear from someone doing a lot more wrenching or riding than me about those nuances. If they're all more or less the same, then I'd typically buy in the middle of the line, whether Shimano, Avid, or other.
    Longbikes Slipstream

  7. #7
    Small Member maddmaxx's Avatar
    Join Date
    Nov 2003
    My Bikes
    Leader home built hardtail, Diamondback Response
    Posts
    7,071
    Mentioned
    4 Post(s)
    Tagged
    1 Thread(s)
    Usually with Shimano's top grades of parts you are buying less weight along with a little bit of performance. A caveat about the highest grades is that you as a sport rider may not be getting increased reliability, in fact your reliability may be worse as the lightest racing parts require more maintenance and are sometimes designed with short lifetimes (an expense of maximum performance)

  8. #8
    biked well well biked's Avatar
    Join Date
    Jul 2005
    Posts
    6,795
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by stevemtbr View Post
    Stay away from Shimano all that linkage robs you of stopping power.
    Just curious, but have you ridden with Shimano parallel push brakes? I have parallel push XT's from several years ago, the front brake yelps, barks, and whines, but the bike stops on a dime. Paired with Shimano Servo Wave levers, it's an incredibly powerful brake setup-
    Last edited by well biked; 05-10-08 at 02:31 PM.

  9. #9
    Weekend Warrior
    Join Date
    Jun 2007
    Location
    Vermont
    My Bikes
    06 K2 Mach 2.0 (105 Grouppo), 04 Something Rambler Hardtail (Deore/Deore XT), 03 Nirve DSX-1 (Suntour/Deore/Deore LX)
    Posts
    102
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I recently changed out my older Deore v's for a set of Deore XT M770's... Since then I have only been out a few times on single track, but for the life of me -- they seem the same. They definately are blingier though, and weren't much more expensive than replacement Deore's (in my case).

  10. #10
    Easy like Sunday morning white lobster's Avatar
    Join Date
    Apr 2005
    Location
    Santa Fe, NM
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Biggest difference between XTR and XT is that the XTR brakes pivot on ball bearings while XT uses the traditional brass bushing. The bearings are really nice since there's no play in the brake arm whatsoever. Same thing with Dura-Ace vs. Ultegra ... the Dura-Ace calipers have ball bearing pivots while the Ultegra and lower have bushings.

    If you look closely at the XTR brake arm, you'll see a 6-sided nut just below the brake arm mounting bolt. That's the bearing adjustment nut.

  11. #11
    Creamy pack filling stevemtbr's Avatar
    Join Date
    Aug 2007
    Location
    Nine Mile Falls, WA
    My Bikes
    Trek 8000, Co-Motion tandem, Co-motion Espresso, Yeti Cross
    Posts
    653
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by well biked View Post
    Just curious, but have you ridden with Shimano parallel push brakes? I have parallel push XT's from several years ago, the front brake yelps, barks, and whines, but the bike stops on a dime. Paired with Shimano Servo Wave levers, it's an incredibly powerful brake setup-
    Been riding shimano V Brakes since 97. I have ridden older non parallel LX brakes that worked great. Got a hold of some new LX V's with the parallel push and was very disappointed. Upgraded to XT and it was a little better. Two years ago I went with the Avid single digit 7's and they are much better than the XT's. All that linakage adds flex which robs braking power. I do have the XT levers and they rock. With my XT's I never did have a squeeling problem up front and back then I was on Mavic rims. Have you noticed that the new 08 XT's don't have the parallel push.

  12. #12
    Member
    Join Date
    Jan 2006
    Location
    Bellerose,NY
    My Bikes
    Specialized Crossroads/ Colnago racer(can no linger ride it due to physical limitations
    Posts
    42
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I agree with(stevemtbr), ..Avid single digit Seven"s are the way to go(I mean stop). great choice.

  13. #13
    biked well well biked's Avatar
    Join Date
    Jul 2005
    Posts
    6,795
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by stevemtbr View Post
    Been riding shimano V Brakes since 97. I have ridden older non parallel LX brakes that worked great. Got a hold of some new LX V's with the parallel push and was very disappointed. Upgraded to XT and it was a little better. Two years ago I went with the Avid single digit 7's and they are much better than the XT's. All that linakage adds flex which robs braking power. I do have the XT levers and they rock. With my XT's I never did have a squeeling problem up front and back then I was on Mavic rims. Have you noticed that the new 08 XT's don't have the parallel push.
    I won't argue with you about the Avid brakes being good, I do agree.

    But I do have to say that when I installed my parallel push XT's with the Servo Wave levers, they pulled so hard they flexed the seatstays on a very stiff aluminum frame a LOT. So much so that I had to install brake boosters to get the frame flexing under control. After that, the brakes were just incredible.

    My only complaint is with the front brake noise, and I think that is pretty much unavoidable with that era of XT parallel push brakes. I tried everything from a lot of toe-in, a little toe-in, no toe-in, brake booster, a wide variety of pads, cleaning of rims, pads, etc, etc.

    Bottom line, I've cussed those brakes because of the noise, but I've NEVER thought of them as needing more power.

  14. #14
    Senior Member
    Join Date
    Oct 2006
    Location
    Fishers Indiana
    My Bikes
    Longbikes Slipstream
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the help. Since I'll be buying 2007's instead of 2008's to keep the cost down, looks like the SD 7's are the ones for me.
    Longbikes Slipstream

  15. #15
    Creamy pack filling stevemtbr's Avatar
    Join Date
    Aug 2007
    Location
    Nine Mile Falls, WA
    My Bikes
    Trek 8000, Co-Motion tandem, Co-motion Espresso, Yeti Cross
    Posts
    653
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well really for me it's a moot point because I will buy a new hard tail when I come back from the desert and it will have dics brakes on it. I 'm probably going to wait and see about 09 Stumpjumper or Trek 8500.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •