Is this cassette broke ?

[gb155]

My chain is slipping in the middle range, fine in low and high

the middle cogs look like something is missing, but I might be wrong as I dont have a clue

is the slippage caused by a broken cassette ?

Thanks

 

[4F]

Looks like there is a tooth missing on 5th gear

 

[fossyant]

Have you got the adjusters yet ? SRAM cassettes are funny anyway and do have the odd missing tooth - you'll have to take a close look and see if any have sheared off.

 

[gb155]

Have you got the adjusters yet ? SRAM cassettes are funny anyway and do have the odd missing tooth - you'll have to take a close look and see if any have sheared off.

Yup

Its 4,5 &6 that it slips in, all the rest are fine

 

[Zoiders]

Take the cassette off and strip it.

You will need a very tiny allen key for this(cant rember if it was 1.5 or 2mm right now), it should fit the pins at the rear of the cassette.

 

[rusky]

Hard to tell, it's too dirty!!

How many miles have you done on it & how many miles on the chain?

Probably worth replacing the cassette & chain if the cost isn't too high.

 

[fossyant]

Chain is new - I fitted it. Cassette - looked clean at weekend (already on wheels), but may not be new - dunno. If not new this would explain the slipping as the middle gears (14T-19T) tend to be used most, and are first to show the 'slipping' when a new chain is fitted.

 

[gb155]

I think its goosed, I swapped it for my new 10spd 105 cassette yesterday and that (once adjusted) never slipped once.

 

[byegad]

If it worked OK on the old chain and skips on a new one it is worn out. Next time swap the chain earlier and you should get several chains to one cassette.

 

[gb155]

If it worked OK on the old chain and skips on a new one it is worn out. Next time swap the chain earlier and you should get several chains to one cassette.

Its a second hand groupo

The issue isnt he chain

as I said, I swapped cassettes to a new one and its fine, so the issue is the cassette

 

[byegad]

Its a second hand groupo

The issue isnt he chain

as I said, I swapped cassettes to a new one and its fine, so the issue is the cassette

So like I said. If it was OK on the old chain and not with a new one the cassette is worn out. QED