Chain & Cassette replacement
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CaptainP



Joined: 06 Oct 2014
Posts: 13

PostPosted: Wed Dec 14, 2016 2:46 pm    Post subject: Chain & Cassette replacement Reply with quote

Hello,

On my Voodoo Hoodoo 2015/2016 spec I have the following components:

Cassette/Freewheel: Shimano, 9-SPD, 11-34T
Chain: KMC Z99

Unfortunately the chain is worn very badly and I've been advised to change the cassette also. I have purchased the tools and am competent to perform the job however I am wondering if the replacement parts have to be exactly the ones which are fitted to the bike e.g. KMC Z99 chain as I have noticed on various websites that there are different manufactures (Clarks for example). Any help much appreciated.
Steve
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Magnus



Joined: 18 Jan 2013
Posts: 1479
Location: Leicester

PostPosted: Wed Dec 14, 2016 5:36 pm    Post subject: Reply with quote

Personally i would fit Shimano XT cassette and a Shimano XT chain. (whatever Ratio's you are comfortable with)

The Chain will come too long so you will have to take out a link or two. Dont measure the old chain and then adjust the new chain to be the same length because the old chain will have grown in length due to wear.

What I do is count the links on the old chain then adjust the new chain to measure the same number of links. I also like to use a magic link to join the chain together.

it's dead easy.

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ryansam



Joined: 30 Oct 2008
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Location: Middlesbrough

PostPosted: Wed Dec 14, 2016 8:23 pm    Post subject: Reply with quote

Cassette here
https://www.merlincycles.com/shimano-hg400-9-speed-mtb-cassette-48272. html

Chain
https://www.merlincycles.com/kmc-x9-73-9-speed-chain-44763.html

You can just replace like for like but I've found Shimano cassettes best and kmc chains great.

Buy a chain checker as well, you should get 3 chains to 1 cassette wear ratio.

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CaptainP



Joined: 06 Oct 2014
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PostPosted: Wed Dec 14, 2016 11:45 pm    Post subject: Reply with quote

Great, thanks for the advice guys. I have ordered the parts recommended from Merlin cycles, happy riding.
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Magnus



Joined: 18 Jan 2013
Posts: 1479
Location: Leicester

PostPosted: Thu Dec 15, 2016 9:50 am    Post subject: Reply with quote

ryansam wrote:


Buy a chain checker as well, you should get 3 chains to 1 cassette wear ratio.



great advice

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This isn't a Paunch its a fuel tank for a Marin
Raleigh Shimano 105 team triathlon

Lotus one plus one Columbus tubing 3 x butted
Campag chorus group including wheels

Marin Rocky Ridge 2001

Marin 2013 Indian Fire Trail 29er (best Marin ever)
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CaptainP



Joined: 06 Oct 2014
Posts: 13

PostPosted: Fri Dec 16, 2016 12:20 am    Post subject: Reply with quote

The original KMC chain on the bike doesn't seem to have any magic links attached, is this to be expected? I guess I just use a chain removal tool to 'break' the chain via pushing out a pin?
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Magnus



Joined: 18 Jan 2013
Posts: 1479
Location: Leicester

PostPosted: Fri Dec 16, 2016 11:27 am    Post subject: Reply with quote

that's it just push the pin out. the new chain won't come with a mgic link either. You will have to remove a link or part link in out of your new chain. dont forget to count this link in working out your chain length.

there are factory recommended methods for working out proper chain length but I find simply counting the links in the old chain to be the simplest and most reliable.

_________________
This isn't a Paunch its a fuel tank for a Marin
Raleigh Shimano 105 team triathlon

Lotus one plus one Columbus tubing 3 x butted
Campag chorus group including wheels

Marin Rocky Ridge 2001

Marin 2013 Indian Fire Trail 29er (best Marin ever)
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ryansam



Joined: 30 Oct 2008
Posts: 1113
Location: Middlesbrough

PostPosted: Fri Dec 16, 2016 8:33 pm    Post subject: Reply with quote

The new chain should come with a quick link,all the kmc chains I've bought have,

http://www.kmcchain.eu/chain-KMC_X9–73-mtb-9_speed

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CaptainP



Joined: 06 Oct 2014
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PostPosted: Sat Dec 17, 2016 5:15 pm    Post subject: Reply with quote

Thanks for the reply guys, great advice as ever. Chain and cassette arrived today but still awaiting my Shimano lock ring tool so play suspended for today and yes the chain did come with a quick link so thats ideal for the future. Just one query though, why are the 3 smaller sprockets on the cassette different colour than the larger ones? To be fair it even shows that on Merlin Cycles website.... just looks a little odd.
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Nik Gnashers



Joined: 30 Dec 2014
Posts: 265
Location: Lincoln

PostPosted: Sun Dec 18, 2016 8:51 pm    Post subject: Reply with quote

I 'think' it's because they are made from slightly more hardwearing metal, as they are smaller with less cogs, and thus more prone to wear than a larger cog.
I could be wrong and happy to stand corrected Laughing

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CaptainP



Joined: 06 Oct 2014
Posts: 13

PostPosted: Tue Dec 20, 2016 11:00 pm    Post subject: Reply with quote

Thanks all for the great advice. All fitted this evening and had a quick ride, lovely job. Just ordered a couple spare quick links as I reckon it would be handy to have a set with me on journeys.
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Robmet



Joined: 04 Jan 2010
Posts: 1890

PostPosted: Wed Jan 04, 2017 5:23 pm    Post subject: Reply with quote

Just be careful, if it was really worn the chain may slip on the chainrings at the front under pressure.

Just check your new chain is sitting in the the gaps between the chainring teeth fully.
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