Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    Senior Member BigBlueToe's Avatar
    Join Date
    Aug 2006
    Location
    Central Coast, CA
    My Bikes
    Surly LHT, Specialized Rockhopper, Nashbar Touring (old), Specialized Stumpjumper (older), Nishiki Tourer (model unknown)
    Posts
    3,388
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    29er: Discs = Less Dish = Broken Spokes?

    I'm building up a 29er for a ride this summer on the Great Divide Mountain Bike Route (GDMBR). I'll be carrying quite a bit of weight. I haven't built the wheels yet, but I put the rear hub in the frame and took a look at it. It looks like the flange on the drive side is almost in the same plane as the spoke holes on the rim. In other words, it looks like there's almost no dish on that side. I read somewhere else (someone's forum post) that disc brakes take up some of the space between the dropouts and allow less dish.

    I've had spoke breaking issues on a previous touring bike. This will be a very bumpy ride. Now I'm wondering if I've made the wrong choice. Should I reconsider the discs and go back to V-brakes? Should I ride my 26" mountain bike instead of the 29er?

    HELP! I was starting to get so excited about the new ride. Now I have doubts.

  2. #2
    Senior Member ncfisherman's Avatar
    Join Date
    Mar 2011
    Location
    Chapel Hill
    My Bikes
    Canfield Yelli Screamy, Pivot Mach5, Specialized Roubaix, '65 Hercules, '79 Schwinn Stingray Lil Chic, '68 Schwinn Stingray Fastback, '89 Specialized Allez Epic, '86 Battaglin World Champion
    Posts
    457
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I'm no wheelbuilding expert, but I don't think you should have anything to be worried about. What rear hub and rim choice? If you choose the right parts for the application, and the wheel is properly built, you shouldn't have any issues.

    IMO, stay excited....no problems.

  3. #3
    Single-serving poster electrik's Avatar
    Join Date
    Aug 2009
    Location
    Toronto, Canada
    Posts
    5,097
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Most of the GDMBR guys use disc brakes... your spokes will break. At least you won't need a new wheel due to rim wear? As long as you've put the correct amount of dish on the wheel and the rim is centered in on the hub there isn't more todo?

  4. #4
    Lost in the Black Hills mx_599's Avatar
    Join Date
    May 2005
    Posts
    5,725
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    are you a heavy rider?

    I hope to do that Great Divide race in 2012 or 2013 too. Good Luck!!

  5. #5
    Senior Member BigBlueToe's Avatar
    Join Date
    Aug 2006
    Location
    Central Coast, CA
    My Bikes
    Surly LHT, Specialized Rockhopper, Nashbar Touring (old), Specialized Stumpjumper (older), Nishiki Tourer (model unknown)
    Posts
    3,388
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I weigh 200 lbs. and am tall so all my stuff - clothes, tent, sleeping bag, etc. - is extra large. I carry a big load. I try and go as light as possible but there are some things you just have to have!

    The hubs are Deore XT, 36-spokes. The rims are Mavic 719's. The spokes are double-butted.
    Last edited by BigBlueToe; 03-27-11 at 08:25 PM.

  6. #6
    Senior Member BigBlueToe's Avatar
    Join Date
    Aug 2006
    Location
    Central Coast, CA
    My Bikes
    Surly LHT, Specialized Rockhopper, Nashbar Touring (old), Specialized Stumpjumper (older), Nishiki Tourer (model unknown)
    Posts
    3,388
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mx_599 View Post
    are you a heavy rider?

    I hope to do that Great Divide race in 2012 or 2013 too. Good Luck!!
    I'm not going to race. Those people are crazy! (My hat's off to them and I'm jealous of their ability and proclivity to do something like that, but it's not for me. I'll have had my 60th birthday before I leave.) I'll be basically following the route outlined in Mike McCoy's book, "Cycling the Great Divide."

  7. #7
    Single-serving poster electrik's Avatar
    Join Date
    Aug 2009
    Location
    Toronto, Canada
    Posts
    5,097
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by BigBlueToe View Post
    I weigh 200 lbs. and am tall so all my stuff - clothes, tent, sleeping bag, etc. - is extra large. I carry a big load. I try and go as light as possible but there are some things you just have to have!

    The hubs are Deore XT, 36-spokes. The rims are Mavic 719's. The spokes are double-butted.
    Well, at 200lbs + gear i would have figure you'd take 26" wheel and 36h. Particularly because it's offroad ... but since this is a not the case just be sure to carry extra spokes and nipples.

Posting Permissions

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