Buying New Cassette for MTB [Help]

Skeng

Skeng

Skeng

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Joined
16 Dec 2009
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723
Location
Bolton
Hey OCUK,
So I'm fairly new to cycling, I've got a mountain bike I use to commute to work, along with a little off-roading some weekends. It's 21 speeds, 3 main chain rings and a 7 cassette.
I'd love to get a road bike but I'm in a crappy living situation at the moment that permits me to one bike. Currently I'm finding myself maxing out a little too easy on flats, some minor
inclines and downhill during my commute to and from work. I was thinking of purchasing a 10 cassette and a new shifter for my bike in hopes I could get a little more speed out of if.
Since I pretty much know zilch about bikes I was hoping someone could help me with this purchase, make sure I'm not overlooking anything etc.

So I've seen this Shimano SLX 10 speed cassette which I'm thinking of purchasing I'll get a new chain too. I know I'll need a 10 speed shifter, I've not decided which yet. Is there anything
I'm missing?

edit: Forgot to ask about the teeth the whole 11-32, 11-36 etc, will this work with my chain rings attached to the crank or will I need to count the teeth to make sure they match up?
 
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Sounds more like you have a freewheel than a cassette. That means the freewheel will have a smallest cog of 14t which is maybe why you're spinning so much.

You would need a new wheel,shifter,mech,cassette and chain at least to go ten speed.

The best way to get more speed would be to fit a 7 speed cassette with an 11t small cog like

http://www.halfords.com/webapp/wcs/..._productId_919365_langId_-1_categoryId_165540

That would only work on a wheel designed for a cassette rather than a freewheel.

The other option would be to fit a hybrid chainset upfront giving you a 28-38-48 range rather than 22-32-42/44 whatever it may be.

What bike is it?
 
You will need a new wheel to fit a new cassette.

Most cassette wheels take 8/9/10 speed which are wider than 7 so you would need a spacer behind a 7 speed cassette to 8/9/10 speed wheel.

That and probably fit a new chain depending on how much use the bike has had.
 
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