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#1
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Jumping chain.
I have a new bike. It has ShimanoDeore gears.When I'm on smaller sprockets
the chain seems to slip a tooth. It does it randomly, not just when i'm putting a lot of pressure on it. I can't get to the bikeshop now until after new year. I went on to Sheldon Brown which said it's either a worn chain, which it obviously isn't or bent deurailler, which it isn't. Any ideas as to what it could be. TIA Gaz |
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#2
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See: http://sheldonbrown.com/derailer-adj...html#stifflink
Sheldon "Very Large Website" Brown Newtonville, Masssachusetts +---------------------------------------------------+ | The important thing is not to stop questioning. | | Curiosity has its own reason for existing. | | --Albert Einstein | +---------------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide http://captainbike.com http://sheldonbrown.com |
#3
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wrote in message oups.com... See: http://sheldonbrown.com/derailer-adj...html#stifflink Sheldon "Very Large Website" Brown Newtonville, Masssachusetts Happy New Year Sheldon from all of us in the UK who use your "Very Large Website" regularly!! Glad to see you dropping by as well! Nick "chain slipping problem at the moment too, must clean my chain" Boyle |
#4
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"Tazlvr" wrote in message ... I have a new bike. It has ShimanoDeore gears.When I'm on smaller sprockets the chain seems to slip a tooth. It does it randomly, not just when i'm putting a lot of pressure on it. I can't get to the bikeshop now until after new year. I went on to Sheldon Brown which said it's either a worn chain, which it obviously isn't or bent deurailler, which it isn't. Any ideas as to what it could be. TIA Gaz Check each link Gaz. Make sure they all pivot freely. If you find a stiff link use sideways pressure to ease it off. |
#5
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"Tazlvr" wrote in message
... I have a new bike. It has ShimanoDeore gears.When I'm on smaller sprockets the chain seems to slip a tooth. It does it randomly, not just when i'm putting a lot of pressure on it. I can't get to the bikeshop now until after new year. I went on to Sheldon Brown which said it's either a worn chain, which it obviously isn't or bent deurailler, which it isn't. Any ideas as to what it could be. Other respondents' suggestions about stiff links are reasonable, especially if it's a new bike. However, also make sure that any spacers are correctly positioned in the cassette (you should be able to see if some sprockets are much closer together than the others), that the teeth of the sprockets concerned are not damaged (be careful, because Shimano HG sprockets are oddly and irregularly shaped anyway), and even that there are no bolts (mudguard fixing, e.g.) fouling the chain. |
#6
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in message .com,
') wrote: See: http://sheldonbrown.com/derailer-adj...html#stifflink Coo! Now that's an honour, lad, that most folk don't get. The great Sheldon answering your question himself. -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ Windows 95: You, you, you! You make a grown man cry... M. Jagger/K. Richards |
#7
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"Tazlvr" wrote in message ... I have a new bike. It has ShimanoDeore gears.When I'm on smaller sprockets the chain seems to slip a tooth. It does it randomly, not just when i'm putting a lot of pressure on it. I can't get to the bikeshop now until after new year. I went on to Sheldon Brown which said it's either a worn chain, which it obviously isn't or bent deurailler, which it isn't. Any ideas as to what it could be. New bike = cables settling in (possibly). Tighten the cable a quarter turn at a time at the rear mech adjusment screw. Test to see if the bike shifts smoothly. Else go to the basic method. Stick the bike in the second smallest rear cog and turn the barrel adjuster until the chain just just just wants to skip up to the next cog, then turn the barrel back one (or two) quarter turns (the bike does need to be off the ground for this method). John |
#8
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"Eatmorepies" wrote:
"Tazlvr" wrote in message ... I have a new bike. It has ShimanoDeore gears.When I'm on smaller sprockets the chain seems to slip a tooth. It does it randomly, not just when i'm putting a lot of pressure on it. I can't get to the bikeshop now until after new year. I went on to Sheldon Brown which said it's either a worn chain, which it obviously isn't or bent deurailler, which it isn't. Any ideas as to what it could be. New bike = cables settling in (possibly). Tighten the cable a quarter turn at a time at the rear mech adjusment screw. Test to see if the bike shifts smoothly. My new bike used to skip, mainly on the smallest 2 rear cogs, and I thought I had a dodgy rear casette, but I finally adjusted the cable tension and that fixed it. |
#9
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Adrian Boliston wrote:
"Eatmorepies" wrote: "Tazlvr" wrote in message ... I have a new bike. It has ShimanoDeore gears.When I'm on smaller sprockets the chain seems to slip a tooth. It does it randomly, not just when i'm putting a lot of pressure on it. I can't get to the bikeshop now until after new year. I went on to Sheldon Brown which said it's either a worn chain, which it obviously isn't or bent deurailler, which it isn't. Any ideas as to what it could be. New bike = cables settling in (possibly). Tighten the cable a quarter turn at a time at the rear mech adjusment screw. Test to see if the bike shifts smoothly. My new bike used to skip, mainly on the smallest 2 rear cogs, and I thought I had a dodgy rear casette, but I finally adjusted the cable tension and that fixed it. If it's new wait until after new year and go back to the shop. Don't mess with stuff if it's their responsibility to fix it. Hell it's only a day or two, can't you use an old bike or just make do? Sniper8052 |
#10
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