Results 1 to 19 of 19
  1. #1
    mtbr member
    Reputation:
    Join Date
    Jan 2008
    Posts
    306

    how long do your chain last?

    usually how long do your chain last?
    i'm using kmc Z9000
    used it for only 4 months
    someone check it for me and told me that it stretch for 0.75 already
    is it time for a new one?

  2. #2
    Vaginatarian
    Reputation:
    Join Date
    Oct 2005
    Posts
    5,685
    get a ruler and measure 1 foot of chain pin to pin
    if its off more than 1/16" you need a new chain, if its off more than 1/8" you probably need new middle ring and poss. cassette
    if you change the chain using the 1/16" rule and keep everything clean & lubed you should get 3 or 4 chains to every middle ring/ cassette, for me 4 chains a year

  3. #3
    mtbr member
    Reputation: ewarnerusa's Avatar
    Join Date
    Jun 2004
    Posts
    2,084
    I go through about 2 Shimano XT chains a year and an XT cassette every 3 chains. I've changed my middle & granny chainrings once in 3 years, might be time to again soon. I ride around 1000 miles/yr. I use a go/no go chain checker and get a new chain at 0.75% stretch.

  4. #4
    ups and downs
    Reputation: rockyuphill's Avatar
    Join Date
    Nov 2004
    Posts
    13,810
    Yep best to treat chains as disposable and consumable, and change them a couple of times a year, a couple of chains are much cheaper than a cassette and chainrings.

  5. #5
    wyrd bi ful rd
    Reputation: chinaman's Avatar
    Join Date
    Jun 2007
    Posts
    1,724
    One of my chains has lasted me almost 1000 miles ... still within the 0.75 wear ... depends on how you work the chain and your shifting. Would be good to consider one of these ...

    20080127 park tool chain wear indicator.jpg

  6. #6
    mtbr member
    Reputation:
    Join Date
    Jan 2008
    Posts
    306
    changing the chain isnt a big problem
    but do i have to change my cassette everytime?

  7. #7
    Vaginatarian
    Reputation:
    Join Date
    Oct 2005
    Posts
    5,685
    Quote Originally Posted by ivantcs
    changing the chain isnt a big problem
    but do i have to change my cassette everytime?

    see post #2 above

  8. #8
    AKA Dr.Nob
    Reputation: gumbymark's Avatar
    Join Date
    May 2007
    Posts
    887
    My last chain wore out in 4 days.

    Tough mulitstage race.
    Not that all teenagers are evil mind, just most of them.

  9. #9
    mtbr member
    Reputation:
    Join Date
    May 2006
    Posts
    11,141
    Where did 0.75% stretch come from I use 1.0%.

    I get about 4 to 5 chains per cassette.

    I ride about 8000 km per year, winter, salt and dusty rocky summers....

    Thats about 9 to 10 chains per year.

    I can do a chain in a week if the we get a chinook after a cold snap, the salt and sand the roads below 0F, then when the shitmix melts its hard on chains.

  10. #10
    nnn
    nnn is offline
    mtbr member
    Reputation: nnn's Avatar
    Join Date
    Feb 2005
    Posts
    799
    My London commuter which I use in the wet still has the same chain from last season (that's about 3000km now) with less than 1/8 stretch.

    I don't obsess over cleaning (take off once every two months or so) and lube the chain as lightly as possible. With previous chains I used to just douse the bloody things with oil and think that's great then they eventually just snapped so I got wiser

  11. #11
    One Gear
    Reputation: .40AET's Avatar
    Join Date
    Jun 2007
    Posts
    1,043
    Quote Originally Posted by chinaman
    One of my chains has lasted me almost 1000 miles ... still within the 0.75 wear ... depends on how you work the chain and your shifting. Would be good to consider one of these ...

    20080127 park tool chain wear indicator.jpg
    I don't trust the Park tool anymore. I have one and have been using it. I finally tried the ruler and I'm over 1/16" and the Park tool isn't close. The new chain skipped when installed. So, I'm back to the old chain and riding it until the casette and rings are hosed. YMMV

  12. #12
    MTB B'dos
    Reputation: LyNx's Avatar
    Join Date
    Oct 2004
    Posts
    17,436
    As said measure the chain using a good steel ruler, measuring 1ft/12" works, but doing 2ft/24" is even better - I still tick with the 1/16"th rule. Depending on the conditions I'd say you get about 1,000-1,500 miles on a Shimano XTR/CN7701 (which is the only chain I use, as it's their best and much cheaper than comparable SRAM). I ride about 5k miles a year and prob do 3 or 4 chains depending.
    One day your life will flash before your eyes, will it be worth watching??
    MTB Barbados
    My Phantom pics

  13. #13
    ColoradoCoolBreeze
    Reputation: SingleTrackLovr's Avatar
    Join Date
    Apr 2007
    Posts
    679
    With cleaning and re lubing after every dirt trail ride.
    I get between 500 to 700 miles from a Sram 991 chain.
    I get about the same on the XT center ring.

    I have now switched to the Raceface center ring to see if it lasts longer and a Ti small ring.
    Rear cassette is XTR and it shows no sign of wear yet.

  14. #14
    mtbr member
    Reputation:
    Join Date
    Jan 2008
    Posts
    306
    i ride about 300 - 500km per month
    and the chain is already 4months old
    80% road 20% off road

  15. #15
    mtbr member
    Reputation: chas_martel's Avatar
    Join Date
    May 2006
    Posts
    3,482
    If I measure with a ruler how many links should I be seeing per foot?
    Nobody cares...........

  16. #16
    Vaginatarian
    Reputation:
    Join Date
    Oct 2005
    Posts
    5,685
    Quote Originally Posted by chas_martel
    If I measure with a ruler how many links should I be seeing per foot?
    1 foot pin to pin if its off 1/16" new chain, more probably middle ring and or cassette

  17. #17
    mtbr member
    Reputation:
    Join Date
    May 2006
    Posts
    11,141
    16 times 12 = 192 *.01 = 1.92.... or 2/16 or 1/8 equals about 1% over 1 foot.

    new chains are about 0.25% so 192*.0025=.58 or 1/32 over a foot.

  18. #18
    mtbr member
    Reputation: grandsalmon's Avatar
    Join Date
    Oct 2005
    Posts
    894
    Many alternate 2 new chains with one fresh cassette, this lengthens the life of front rings and the cassette. this gives less wear over a longer period of time, better prolong performance, and happens to be economical. after so many miles ( and depending on chain care and conditions) you switch to the other, and then back...

    for me it is every 500 miles or 2 months. this is an average folks.

  19. #19
    ride like you stole it
    Reputation:
    Join Date
    Nov 2007
    Posts
    681
    Is there any way to tell when its time to change the chain by how it works when riding, also wouldn't changing the chain with out changing out the rings cause chain suck

Posting Permissions

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