Wrong sort of cassette

vaseline
vaseline Posts: 46
edited January 2011 in Road beginners
I just bought a second hand road bike. It is a triple that originally had 24 gears. When I bought it the person who sold it me said he had his local bike shop put a new cassette on the back to give him an extra low gear for going up hills.

I took the bike for a service and they informed me that the 9 speed cassette is a mountain bike cassette and not a road cassette.

Does it matter?

Comments

  • nicklouse
    nicklouse Posts: 50,675
    nope, as long as the mech can manage it.

    calling it an MTB cassette is not really correct.


    it is a wide ratio cassette as normally found on MTBs rather than a close ratio cassette as normally found on a road bike.

    both can be found on either types of bike.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • jibberjim
    jibberjim Posts: 2,810
    But if it originally had 24 gears - it only has 8 speed components everywhere else???
    Jibbering Sports Stuff: http://jibbering.com/sports/
  • vaseline
    vaseline Posts: 46
    jibberjim wrote:
    But if it originally had 24 gears - it only has 8 speed components everywhere else???

    That is what I thought but if it has it doesn't show. Given earlier answers, I assume he requested a wide ratio cassette and it was done correctly, including a change to the other relevant bits (just the shifters?). It has no trouble finding its way into any of the 9 speeds and my local shop didn't bring it to my attention.
  • bompington
    bompington Posts: 7,674
    Double post :evil: stupid browser, no of course it's not user error
  • ride_whenever
    ride_whenever Posts: 13,279
    Most of the 8 speed bits will work with 9 speed bits and if it has friction shifters then there is no indexing to go wrong!!!
    Neeermad
    Carbon 456
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  • vaseline
    vaseline Posts: 46
    ride_whenever wrote:
    Most of the 8 speed bits will work with 9 speed bits and if it has friction shifters then there is no indexing to go wrong!!!

    They are not friction shifters (I do not think). STI on the brake lever and they click when you change gear.
  • Tom BB
    Tom BB Posts: 1,001
    shirley if the shifters are sti then they only have 8 clicks?
  • desweller
    desweller Posts: 5,175
    Tom BB wrote:
    shirley if the shifters are sti then they only have 8 clicks?

    Is it not 7 clicks? For 8 gears.

    And don't call me Shirley.
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  • AndyI
    AndyI Posts: 156
    this may be of some help: http://sheldonbrown.com/harris/derailers-rear.html

    It's got some handy tips on cassette, mech and shifter compatibility
    A racing mind in a touring body.
  • nicklouse
    nicklouse Posts: 50,675
    sorry totally missed the reference to the 8sp shifters.

    yes you should have an 8 speed cassette as the cassette total width is the same for 8 and 9spd cassettes so the spacing between the cogs is not the same. so you will have only a few cog that will run smoothly and one that will be jumped over as you go up and down the cassette.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • vaseline
    vaseline Posts: 46
    I can't even count. It is an 8 speed cassette. The STI gears have 7 clicks, naturally.
  • nicklouse
    nicklouse Posts: 50,675
    so the only issue is that is it a wide ratio cassette rather than a close ratio cassette?

    not a problem.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • vaseline
    vaseline Posts: 46
    Great.
  • bompington
    bompington Posts: 7,674
    OT, but:
    You might notice that I've referenced a double post above - but the original has gone (the one with the pic of the cassette if you've been following) as has the one after with the pic of the tape reel.
    What did we do wrong?

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