new chain.....but new cassette ?
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bry5



Joined: 16 Sep 2008
Posts: 424
Location: Leeds

PostPosted: Sat Nov 15, 2008 9:43 pm    Post subject: Reply with quote

Gunner wrote:

Is the rear wheel on straight?
Wink


Constanty going round in a circle is a big clue Razz

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mr-marty-martin



Joined: 30 Jun 2008
Posts: 3778

PostPosted: Sun Nov 16, 2008 12:00 am    Post subject: Reply with quote

sorry guys should of updated this Embarassed

thinka forgot to after telling clatchy about sorting it out on msn

the problem was, which i found out on my ride to pick ma camel bak up from clath (thanks Very Happy ) the rear cassette was loose, we didnt put the initial spacer in, as when we put it in and tightened it we couldnt find any threads so took the first one out (we being me and eli-d, kids ehh Laughing )

but this was when i changed the wheels a while ag, so the new chain must be biting better causing it to loosed of abit, but his dad managed to find the few threads and got it working fine

ive ordered a new cassette with a better selectoin of gears, so that will be getting put on as and when it comes, the cassette is sticking abit still although this is fine when i get the bike up to speed, and a think the new cassette will sort this out


lets just hope everythings workin good for tomorows race, although we've realy checked it over Rolling Eyes or have we Laughing
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tomlevell



Joined: 13 Apr 2008
Posts: 989

PostPosted: Sun Nov 16, 2008 12:15 am    Post subject: Reply with quote

Rallyestyle wrote:
Hi all,

Just changed the chain on my bike as it was skipping every now and then but with the new chain installed the chain is skippin/jumping seriously to the point that im not happy riding it :(

I do 125 miles a week and have been doing so since May when i got the bike, i have not replaced any parts since so im expecting my leaving the chain so long may have damaged the cassette (it looks mint however). The chainrings are worn slightly but no way to the extent of those pictured above, i think they are fine.

Any tips from those in the know? Cassette replacement the best option?

Bike is a Specialized Rockhopper Pro 2008 by the way :D

Cheers all :)

Tom


You need a new cassette.

With those sort of miles it will be shot.
Chainrings will probably be ok unless you spend a lot of time in the little ring.
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Rallyestyle



Joined: 21 Aug 2008
Posts: 15

PostPosted: Mon Nov 17, 2008 1:10 pm    Post subject: Reply with quote

tomlevell wrote:
Rallyestyle wrote:
Hi all,

Just changed the chain on my bike as it was skipping every now and then but with the new chain installed the chain is skippin/jumping seriously to the point that im not happy riding it Sad

I do 125 miles a week and have been doing so since May when i got the bike, i have not replaced any parts since so im expecting my leaving the chain so long may have damaged the cassette (it looks mint however). The chainrings are worn slightly but no way to the extent of those pictured above, i think they are fine.

Any tips from those in the know? Cassette replacement the best option?

Bike is a Specialized Rockhopper Pro 2008 by the way Very Happy

Cheers all Smile

Tom


You need a new cassette.

With those sort of miles it will be shot.
Chainrings will probably be ok unless you spend a lot of time in the little ring.


Many thanks. Is there anyway to see it is shot by looking at it? It looks in really good condition.

I will order a new one up.
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Rallyestyle



Joined: 21 Aug 2008
Posts: 15

PostPosted: Mon Nov 17, 2008 1:18 pm    Post subject: Reply with quote

Gunner wrote:
I think we need to know more!!!

What part of the drivechain is slipping/skipping?

Is it the front chainrings?

Is it the rear cassette?

Is it both?

Is it happening all the time or just under load?

Is there noise from the rear cassette/chain just while pedalling normally?

Is the rear wheel on straight?


Wink


Ok will try and answer Smile

Its pretty hard to see which part is slipping as it only happens when riding but it looks like the rear cassette. Could the gear changes need adjusting?

It only happens under load Smile

No real noise when pedalling normally, just your regular noise.

Rear wheel is on straight yep Smile

Cheers
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tomlevell



Joined: 13 Apr 2008
Posts: 989

PostPosted: Mon Nov 17, 2008 1:33 pm    Post subject: Reply with quote

[quote="Rallyestyle"]
tomlevell wrote:
Rallyestyle wrote:
Hi all,


You need a new cassette.

With those sort of miles it will be shot.
Chainrings will probably be ok unless you spend a lot of time in the little ring.


Many thanks. Is there anyway to see it is shot by looking at it? It looks in really good condition.

I will order a new one up.


Put a new chain on and you'll find out how worn it is. Watch your knackers on the stem though.
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tomlevell



Joined: 13 Apr 2008
Posts: 989

PostPosted: Mon Nov 17, 2008 1:40 pm    Post subject: Reply with quote

Oh and those pictured are of the extremes you can go to on a singlespeed with a straight chainline. They've both been flipped to get wear out of the other side of the teeth.
A multigear set up wouldn't get even close to that before being unusable.

The only real way round it is to do a 3 chain rotation so all 3 chains wear at the same rate as the cassette.
1 on bike
1 in cleaning bath
1 in oil

Rotate weekly/monthly depending on your mileage.
Too much of a ballache for me so I just run gears until they are really really annoying then change cassette and chain and maybe some chainrings depending upon how they look/work.

I've had 800miles and 2 winters out of the drivetrain on one bike and it still works (just). It'll limp through this winter if I rebuild that bike and be renewed in the spring. It has had new inner and outer cables though once.
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Rallyestyle



Joined: 21 Aug 2008
Posts: 15

PostPosted: Mon Nov 17, 2008 3:21 pm    Post subject: Reply with quote

[quote="tomlevell"]
Rallyestyle wrote:
tomlevell wrote:
Rallyestyle wrote:
Hi all,


You need a new cassette.

With those sort of miles it will be shot.
Chainrings will probably be ok unless you spend a lot of time in the little ring.


Many thanks. Is there anyway to see it is shot by looking at it? It looks in really good condition.

I will order a new one up.


Put a new chain on and you'll find out how worn it is. Watch your knackers on the stem though.


Thanks Tom, its shagged then as when i put the new chain on it was slipping big style. thankfully it's not that expensive to replace Smile

This cycling to commute bussiness is more expensive than i thought lol!
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Rallyestyle



Joined: 21 Aug 2008
Posts: 15

PostPosted: Wed Nov 19, 2008 2:16 pm    Post subject: Reply with quote

New cassette did the job, runnimg very smoothly now Smile

Just need to get myself the tools and spares so that i can do it myslef next time Cool
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Gunner



Joined: 15 Apr 2007
Posts: 29327
Location: Under Whitestone-Cliffe on the Lake.

PostPosted: Wed Nov 19, 2008 6:36 pm    Post subject: Reply with quote

Rallyestyle wrote:
New cassette did the job, runnimg very smoothly now Smile

Just need to get myself the tools and spares so that i can do it myslef next time Cool


Excellent, yes, get yourself the tools, it's amazing how easy it all becomes Wink

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