Results 1 to 9 of 9
  1. #1
    mtbr member
    Reputation: mestapho's Avatar
    Join Date
    Sep 2011
    Posts
    1,636

    SHIMANO CN-7701 Chain

    Is not Clyde friendly.
    6'1" 250 lbs and have broken this chain twice now on climbs.
    It only has about 25 miles on it.

    Have a Connex in the mail, hopefully it lives up to their test results.

    Putting it out there so someone
    else doesn't waste their money.

  2. #2
    mtbr member
    Reputation: rdickens48's Avatar
    Join Date
    Sep 2005
    Posts
    193
    I have been running this chain for a while now. I weigh between 215 and 220, sometimes a little heavier. I have not broken one of these chains yet. I even shift under load sometimes on climbs.

  3. #3
    Former Bike Wrench
    Reputation: mtnbiker72's Avatar
    Join Date
    Jan 2007
    Posts
    15,985
    I used to use those before switching to KMC X series chains (and BTW never broke a CN-7701)...they come with a quick link, are very strong, shift well with SRAM and Shimano cassettes and chainrings, and usually cost quite a bit less.

    KMC X9.99 9 Speed Chain at JensonUSA.com

  4. #4
    mtbr member
    Reputation: mestapho's Avatar
    Join Date
    Sep 2011
    Posts
    1,636
    Maybe I just got a lemon.

  5. #5
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    5
    I'm currently riding at approx 255lbs, down from 295, I rode this shimano chain for the first few months of mountain biking and had the same issues. Went through a couple and then tired KMC, and had great results with much less stretch over time. However, I think what did it the most was being more conscious of shifting under load, mashing the pedals while standing up, and other types of sloppy riding/pedaling. This improved everything and made the chain and cassettes last a whole lot longer. Since all that, I've completely changed my drivetrain to a full Shimano SLX dyna-sys 10spd and am running a Shimano chain as well, with zero problems at all for months now.

  6. #6
    mtbr member
    Reputation: mestapho's Avatar
    Join Date
    Sep 2011
    Posts
    1,636
    The first time I broke it was definitely due to sloppy shifting and trying to overcome it by standing on the front pedal. The second time was not though. I was just about to make it up a climb I'd never made it up before and SNAP! Sucked big time.

  7. #7
    thecentralscrutinizer
    Reputation: mopartodd's Avatar
    Join Date
    Jun 2004
    Posts
    2,498
    Quote Originally Posted by mestapho View Post
    The first time I broke it was definitely due to sloppy shifting and trying to overcome it by standing on the front pedal. The second time was not though. I was just about to make it up a climb I'd never made it up before and SNAP! Sucked big time.
    It could have still been damaged from the first incident. I've run these chains for years at 250 lbs and never had a problem...but it certainly isn't unheard of for big guys.
    2014 Giant Anthem 27.5
    2013 DeVinci Leo SL
    2009 SE Racing SoCal Flyer
    2008 SE Racing lil Ripper
    2003 TiSport Gman

  8. #8
    mtbr member
    Reputation: mestapho's Avatar
    Join Date
    Sep 2011
    Posts
    1,636
    It could have still been damaged from the first incident. I've run these chains for years at 250 lbs and never had a problem...but it certainly isn't unheard of for big guys.
    Yeah, that's definitely a possibility.

  9. #9
    Ow!
    Reputation: clydecrash's Avatar
    Join Date
    Apr 2005
    Posts
    701
    I have never broken one either (was up to almost 300lbs at one time), but I am an easy shifter and a spinner (when I can spin). I haven't broken a SRAM chain either except a few times when I shifted very poorly. That all said, I have a couple of SRAM crosssteps waiting when I replace the next chain.

Similar Threads

  1. Replies: 2
    Last Post: 06-25-2011, 07:54 AM
  2. Shimano Chains CN-HG-73 vs. CN-7701
    By dabbey in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 0
    Last Post: 04-03-2007, 09:21 AM
  3. Chain quality!? Does it matter? Differences between the UN-73, and the XTR 7701 chain
    By Sexyblackbmw in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 23
    Last Post: 03-28-2007, 06:47 PM
  4. SRAM PC-991 Hollow Pin vs. Shimano CN-7701
    By BigBlue in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 6
    Last Post: 04-24-2006, 08:46 AM
  5. questions on the CN-7701 chain
    By rokbottom47 in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 3
    Last Post: 10-25-2005, 08:04 AM

Posting Permissions

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