I just bought my son a ridgeback mx5 secondhand, bit like a hard rock disc in spec. Got it honme and he says gear 7 slips. On closer inspection the bike is fitted with 7 spd dual control levers, but a 9 spd cassette and deore mech ( quite new looking, probably 9 spd?).
He will only use it for riding to school, so do want o spend any money really, as he also has a very nice mtb. I bought it of a guy who was into bikes and it was his commuter too. Drivetrain looks well maintained, so can I keep this as it is? Can I stop it from slipping?
Thx Simone
Just get a 7 speed cassette will only cost you a tenner, you'll need a spacer to fit it on a 8/9 speed free hub.
7 speed spacing is different to 9
What he said as long as chain is not worn.
agreeing is the new argueing 😉
You're still a ****. Seriously.
😛
No, seriously.
So can I just fit a 7 spd cassette and leave the 9 spd mech?
Yes
no, a nine speed mech has a different leverage ratio, cheapest way around would be to but a 9 speed deorre shifeter, then you got 9 speed all the way.
T
Goatster - "no it ****ing doesn't, **** off and stop talking utter shite!" (c)
So you reckon a 7 speed shifer will work a 9 speed mech... good luck with that. Maybe it will work the same way a ten spedd shifter will work a 9 speed mech?
No! I know it will for a fact
ten speed does need a ten speed mech..
GW is correct, goatster really doesn't appear to know what he's talking about. Best ignored.
Like I say... good luck, didn't work with a road bike we had in a little while ago...
We "had in"?
Name and shame please? sound utterly incompitent 😆
nice stalking.
if ye cannae beat 'em... 😉
That would be incompEtent smart arse...
Basing my answer on a road bike that as I remember the guy wanted to upgrade the rear mech, new one came as a nine... seven speed block, seven speed shifter, new nine speed mech no way would it index... actually the more I think... not sure I can remember what the combo was but it wouldn't work so I'll shut up 🙂
But gary, you're the original?
Goatster - 6-9 speed mechs all work fine with 6-speed systems...maybe even road 10.
That sheds some light on it then :wink:.
If I get a 9 spd shifter i will also need a brake lever as they are together at the moment. I suppose not too expensive, but I was hoping to work with what's there.
The deore mech seems to work ok and shift ok, it just keeps slipping when on 7th cog.
could be worn out - cog 7 that is.
You can saw the old 9s shifter off the brake lever.
Cassette looks pretty new, and it currently has those shifter/brake combos in 7 spd.
some twonk has probably fitted the 9 speed cassette thinking it will give them 9 speeds.
The slip is in 7th is probably because the indexing is set up to start on the smallest cog and then just gets more and more out. Cassttes cost <£10 so pick one up and then sell or keep the 9 speed as a spare for one of yours.
Is the chain 9 speed or 7/8?
If it's not worn chain/sprocket could be bent hanger or limit screw out. That combo of running gear wouldn't skip if set up correctly, although gears would obviously be missing.
I ran a 9 speed ultegra mech with an 8 speed cassette and 7 speed shifter for years. so a 9 speed mech will work with a 7 speed cassette and shifter.
So I just need a new cassette? Or can I leave the 9 speed one and get the indexing sorted?
You need a cassette.
You could try using the limiter screws to bring the rear cassette down to 7 usable gears. I did this with a 9 speed cassette and an 8 speed shifter with no problems.
Just get an 8-speed cassette....it will fit without needing a spacer.
The 7-speed shifter will work fine on the cassette, you just need to decide to use the upper or lower 7 sprockets.
The chain needs to be 8, 9 or 10-speed to work on an 8-speed cassette.
If you keep the 9-speed cassette, you will need a 9-sp shifter and at least a 9-sp chain.
Any recent Mech will work with any chain for this scenario.
PaulD
This thread reminds me why NEVER to ask advice about bikes here!
If any carers are reading this can you please stop switching on the computer on for your service user?