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bike problem help!!
#1
hi im new to all this and my gears are slipping bad when the chain is on the smallest cog on the back the chain is really sagging down like its an inch or so too long  >Sad
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#2
Sounds like worn chain and/or cassette? Not sure why the chain would be sagging though, dose it sag when pedling normally or when back peddling? Hold the biggest gear on the cassette and rock laterally. Is there any movement? If so could be the freehub bearings, which would also cause some resistance when back peddling.
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#3
no movement in that! just seems like chain to long?
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#4
"chunk" Wrote:hi im new to all this and my gears are slipping bad when the chain is on the smallest cog on the back the chain is really sagging down like its an inch or so too long  >Sad

Which chainring?

Is the chain slipping - you temporarily loose drive & the cranks go really easy for a split second?
OR
Is it ghost shifting - the chain clatters & tries to climb up the cassette or off the edge of the smallest sprocket?
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#5
Derailer adjustment and chain length info all nicely summed up here:

<!-- m --><a class="postlink" href="http://sheldonbrown.com/derailer-adjustment.html#chain">http://sheldonbrown.com/derailer-adjustment.html#chain</a><!-- m -->

Lots of useful know how there. Should help you get all set up correctly. If its not because of being mis-setup then it could be because your chain is worn.
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#6
&quot;Tinc&quot; Wrote:Which chainring?

Is the chain slipping - you temporarily loose drive & the cranks go really easy for a split second?
OR
Is it ghost shifting - the chain clatters & tries to climb up the cassette or off the edge of the smallest sprocket?

when i change it keeps going on top of the teeth and not into them!
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#7
and lately when i change down to the smaller cogs on the back the lever gets stuck in for a few seconds
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#8
Andy talk about scare the daylights out of him,  :o Tongue, start with the easy things first.

If the lever is getting stuck it could be that you need new cables and new outers (Approx £5 i think). Maybe your gears might need inexing if they are jumping etc.

Check out <!-- m --><a class="postlink" href="http://www.youtube.com/watch?v=SPhcOskjsDs&feature=fvst">http://www.youtube.com/watch?v=SPhcOskjsDs&feature=fvst</a><!-- m -->

As for the chain being too lose, sounds odd but maybe a really stretched chain etc. You might need to replace the drivetrain but try the cheaper things first. Bike mechanics is a piece of cake but a bit daunting until you have given it a try.
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#9
think the chain is stretched, when i went in bike shop the other day he said it needing changing very soon
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#10
&quot;Si.Ozzy&quot; Wrote:Andy talk about scare the daylights out of him,  :o Tongue, start with the easy things first.

If the lever is getting stuck it could be that you need new cables and new outers (Approx £5 i think). Maybe your gears might need inexing if they are jumping etc.

Check out <!-- m --><a class="postlink" href="http://www.youtube.com/watch?v=SPhcOskjsDs&feature=fvst">http://www.youtube.com/watch?v=SPhcOskjsDs&feature=fvst</a><!-- m -->

As for the chain being too lose, sounds odd but maybe a really stretched chain etc. You might need to replace the drivetrain but try the cheaper things first. Bike mechanics is a piece of cake but a bit daunting until you have given it a try.

thats a bit easier to understand  Smile
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