When is it time to change your chain/sprokets

Discussion in 'Maintenance' started by sync24, Aug 4, 2011.

  1. sync24

    sync24 Active Member

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    My 2009 ABS has 18500K on the clock, whilst I am able to check sprokets ETC - how do you know when it's time for a new chain? I keep mine fairly clean with parrafin and lube it up [baby!] with Wurth and gear oil occasionally. Is it when there is no more adjustment? Most of my miles where done on motorway when I was commuting last year.
     
  2. megawatt

    megawatt Well-Known Member

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    If you pull the chain staight back off the rear sprocket and it moves more than about 4mm. Check sprocket teeth Aren,t hooked. Is it noisy , bounces when spun backwards or difficult to engage gears.
     
  3. dan.1moore1

    dan.1moore1 Senior Member

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    Iv always gone by when you can pull the chain of the back of the rear sprocket. With a new chain you can't pull it of the teeth at all.

    I got my last bike unto 22,000 miles and went through at least 5 sets over the 4 years i had it from new
     
  4. JM1

    JM1 Active Member

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    TBH, on this sort of bike, I would replace my chain and sprockets by default if it's done 18k miles.
     
  5. dan.1moore1

    dan.1moore1 Senior Member

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    It can't have the original chain on at that milage surly ? Must be screwed
     
  6. megawatt

    megawatt Well-Known Member

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    I have over 20,000 miles on my DID Gold X ring 525. I lube it with Muc off ptfe every 200 miles.
     
  7. dan.1moore1

    dan.1moore1 Senior Member

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    20 thou ? Bloody hell i must be doing something wrong. and its not loose at all ? The sprockets can't be as old as the chain thou? To be honest I'm not changing the chain coz its knackerd but when the sprockets are worn i change them and the chain so its all new
     
  8. megawatt

    megawatt Well-Known Member

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    Best way to do it mate and cheapest way to buy sprockets. I run a 44tooth allo Renthal on the back which is kinder to chains. I do run a 1 tooth smaller 15T on the front though, steel of course!
     
  9. dan.1moore1

    dan.1moore1 Senior Member

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    the price of an Xring chain makes that method a damn good tip.. Ill give that a go mate ..cheers
     
  10. megawatt

    megawatt Well-Known Member

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    Anytime mate.
     
  11. masterblader

    masterblader Active Member

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    If the chain has also got a tight spot or two plus with that mileage a replacement C&S set is the way to go.
     
  12. megawatt

    megawatt Well-Known Member

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    Good point Mique.
     
  13. Givover

    Givover God Like

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    Just gone 450 miles on mine and swopping now for Renthal sprocket and Regina gold chain , Gotta do it!
     
  14. sync24

    sync24 Active Member

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    What's the benefit of a smaller front tooth? Better acceleration? Does it screw with the speedo?
     
  15. megawatt

    megawatt Well-Known Member

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    It's the single, cheapest , guaranteed increase in acceleration that you can buy. Less top end, sometimes, and less MPG. Yes it will give you a speedo error , but a speedo healer should sort it!
     
  16. dan.1moore1

    dan.1moore1 Senior Member

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    -1 front and + 2 rear made a huge difference on my 600rr.. Like a rocket of the mark but lost a bit of the top end ( never up there for long anyway )
     
  17. JM1

    JM1 Active Member

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  18. megawatt

    megawatt Well-Known Member

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    I used my satnav and a mate to check my speedo readings. Another thing is that if it does not rev out in top with standard gearing , it may do with lowered gearing. Only cost you £15 to find out?
     
  19. NickB

    NickB Active Member

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    Fitted a new chain and sprockets to mine last month. It had 19000 miles on the clock. The chain and sprockets looked ok until you rotated them and realised they were oval. The chain slack at mid point went from 10mm to 50mm. The bike is now much smoother. I bought a chain splitter/riveter which was easy to use. The Haynes manual shows the diameter that the link pin should be when opened out. Nice gold DID x ring looks good as well! Happy days. One thing i did notice was that the front sprocket was slightly thinner than the original where the sprocket nut secures against. The original had rubber covering on the side of the sprocket which is probably to dampen vibration but the replacement didn't have this. Anyone else seen this?
     
  20. Nutty Tart

    Nutty Tart Well-Known Member

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    Yup yur right ... the rubber dampens out poor gearchanging and gives the chain an easier time
     

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