lateral play in cassette...
- Thread starter Maz
- Start date
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accountantpete
OAP
No - either you need to tighten the lockring up a bit more or the lock ring is bottoming out and you need a spacer.
Sheffield_Tiger
Legendary Member
Probably is 1mm rather than 2 - 1mm play feels like much more at the end of the largest sprocket. And is, not-coincidentally, the width of a spacer.
jonny jeez
Legendary Member
- Location
- Chislehurst, Kent, UK
A vote for the lock ring from me too.
you need an adapter to tighten it but not a chain whip.
BUT its likely you'll need to undo it first to solve the issue so a chain whip is then required. I've done mine up incorrectly (mis-aligned the last spacer) and compressed the last ring so that it tightened but didn't tighten the rest of the rings... and the cassette wobbled.
you need an adapter to tighten it but not a chain whip.
BUT its likely you'll need to undo it first to solve the issue so a chain whip is then required. I've done mine up incorrectly (mis-aligned the last spacer) and compressed the last ring so that it tightened but didn't tighten the rest of the rings... and the cassette wobbled.
OP
OP
Maz
Guru
I wish I had read these replies last night!
This morning I was in top gear on the bike (Allez) and I suddenly lost all traction. I thought the chain had snapped (but I had replaced both the chain AND cassette the weekend before, so both brand new).
Looked at the cassette and the smallest ring(s) was completely loose. Managed to ride on to work in one of the lower gears (will have to do this trick again for the ride home).
I did use a lock nut wrench to tighten the lock nut on, but i didn't use a chain wrench to counteract it in the opposite direction. Could that be the cause?
Need to take the wheel off later and have a closer inspection.
This morning I was in top gear on the bike (Allez) and I suddenly lost all traction. I thought the chain had snapped (but I had replaced both the chain AND cassette the weekend before, so both brand new).
Looked at the cassette and the smallest ring(s) was completely loose. Managed to ride on to work in one of the lower gears (will have to do this trick again for the ride home).
I did use a lock nut wrench to tighten the lock nut on, but i didn't use a chain wrench to counteract it in the opposite direction. Could that be the cause?
Need to take the wheel off later and have a closer inspection.
OP
OP
Maz
Guru
Wheel is an R500 about a year old.
Cassette is one of these:
http://www.ribblecycles.co.uk/sp/ro...o-9-spd-hg50-sora-tiagra-cassette/shimcass905
martint235
Dog on a bike
- Location
- Welling
OP
OP
Maz
Guru
Thanks. Then I'm really not sure how I got it wrong. I used one of these to tighten the lock nut
If it's an 11T cassette you might need an extra 1mm spacer: Sheldon explains here
martint235
Dog on a bike
- Location
- Welling
What cassette are you using? If it's a Shimano 105 for example, there's a small spacer that should go between the largest cog and the wheel. I fitted a new cassette at the weekend and almost missed the spacer in the packaging. It's metal rather than the plastic spacers used across the rest of the cassette.Thanks. Then I'm really not sure how I got it wrong. I used one of these to tighten the lock nut
Talking of spacers, have you put them in the right places?
OP
OP
Maz
Guru
This is the cassette I have http://www.ribblecycles.co.uk/sp/ro...o-9-spd-hg50-sora-tiagra-cassette/shimcass905
martint235
Dog on a bike
- Location
- Welling
Not sure if you've seen these two docs then: Installation , Schematic. They show you where the spacers etc should go.
jonny jeez
Legendary Member
- Location
- Chislehurst, Kent, UK
Its the spacer...almost certain.
the spacers only fit in a certain position on each sprocket. It has serrations around its internal circumference that are all different sizes. You need to take off the cassette locking nut (will need a chain whip to hold the cassette in place as you pull against the locking nut) then remove the first sprocket, under it will be the small [black] spacer, turn the spacer until the serrations match the indentation on the next sprocket and it'll drop into place. if it isnt no amount of tightening will tighten the cassette and will only jam the first sprocket.
don't be put off by any of this, its a simple nut and bolt. It just looks scary because of all the paraphernalia used to hold the cassette in place (chainwhip is just a big flexible spanner)
A whip is a good investment as you'll want to regularly take the rear cassette off to clean it.
At least I do...
the spacers only fit in a certain position on each sprocket. It has serrations around its internal circumference that are all different sizes. You need to take off the cassette locking nut (will need a chain whip to hold the cassette in place as you pull against the locking nut) then remove the first sprocket, under it will be the small [black] spacer, turn the spacer until the serrations match the indentation on the next sprocket and it'll drop into place. if it isnt no amount of tightening will tighten the cassette and will only jam the first sprocket.
don't be put off by any of this, its a simple nut and bolt. It just looks scary because of all the paraphernalia used to hold the cassette in place (chainwhip is just a big flexible spanner)
A whip is a good investment as you'll want to regularly take the rear cassette off to clean it.
At least I do...
jonny jeez
Legendary Member
- Location
- Chislehurst, Kent, UK
Yep, that'll need a shimano specific locking nut adaptor (about a fiver from any LBS)
the shinamo's have a higher concentration of teeth then some others, so a general adaptor wont fit I'm afraid.
so all the tools you'll need are as follows;
A wrench (torque if you have one, socket spanner if you dont)
Locking nut adaptor (shimano specific)
Chain whip
1x pair of latex gloves
1x large mug
1x tea bag
approximatley 50 ml of milk
an option for some sugar.
1 chocky biscuit...hell, go on have two, you deserve it.
PS as you do up the cassette, it'll likely make a nauseating cracking sound, dont be put off its quite usual if it is tightening correctly.
