road cassette on a mtb hmmmm?

black.converse
black.converse Posts: 56
edited August 2012 in MTB buying advice
im sure it is possible to plant a road cassette on a mtb rear end- but do many people do it for the lightweight other than the speed? is it neccessary- my point rather i suppose is im looking for the lightest solution for a mtb cassette whether it means i have to buy a road cassette and build my legs up or is there alternatives- not really wanting to spend as much as a sram xx but no more really than £90-100- realistically
It never gets easier. You just go faster. – Greg LeMond

The bicycle is just as good company as most husbands and, when it gets old and shabby, a woman can dispose of it and get a new one without shocking the entire community. - Ann Strong

Comments

  • nicklouse
    nicklouse Posts: 50,675
    there is no such thing as a road cassette. there is close ratio and wide ratio cassettes.

    take your pick.

    and often road cassettes are not the lightest option.

    and losing weight from a cassette is not going to be noticed compared to the really different gears and the loss of the highest gear and the low gears.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • black.converse
    black.converse Posts: 56
    right ok thanks, what can i do to really save weight in the rear? it seems the rear is really heavy- hardtail btw
    It never gets easier. You just go faster. – Greg LeMond

    The bicycle is just as good company as most husbands and, when it gets old and shabby, a woman can dispose of it and get a new one without shocking the entire community. - Ann Strong
  • cooldad
    cooldad Posts: 32,599
    Depends what's on the rear of what.
    I don't do smileys.

    There is no secret ingredient - Kung Fu Panda

    London Calling on Facebook

    Parktools
  • black.converse
    black.converse Posts: 56
    2007 gt avalanche 1.0
    It never gets easier. You just go faster. – Greg LeMond

    The bicycle is just as good company as most husbands and, when it gets old and shabby, a woman can dispose of it and get a new one without shocking the entire community. - Ann Strong
  • 70\ʹspenguin
    70\ʹspenguin Posts: 957
    Why do you want to lose weight on the bike? I dont want to sound trite, but from my own experience - riding more and losing weight from myself has made the biggest difference to my riding and to how the bike feels weight wise.

    I dont know what your spec is but if you have something like the Sram pg950 cassette it will weigh around 450g for the 11-34 and about 400 for the 11-32. You could get the XT cassette for 300g 11-34 or the Sram 980 for similar, but i really dont think you would notice a difference.

    The Ultegra casettes (as used by the harder core weenies), will drop below 200g but, as mentioned, you will lose the ratios and that could be painful.

    The best thing i bought for my bike was a new set of wheels and tyres. The rolling weight loss made the bike feel much more spirghtly. Going back to suspension on the front just added a kilo in weight and i do not notice a thing!
  • 70\ʹspenguin
    70\ʹspenguin Posts: 957
    All that said, i do understand the lure of starting along the weenie road. Its fun and addictive, but you really should concentrate 100% on what will actually make a difference to the feel and enjoyment of the bike, so that you ride more and then you can look towards the less essential weight loss gains elsewhere.
  • Greer_
    Greer_ Posts: 1,716
    £100 on a cassette is crazy! Look at a new wheelset, lighter tyres etc. A lot of the bike weight is focused on the rear (for traction and that's just where the parts are!). If you're comparing it to the front of the bike, that's why.
    Orbea Alma Team Carbon - Strava -Specialized Allez Sport
  • njee20
    njee20 Posts: 9,613
    Go 1x8/9/10, saves more weight, gives you a reasonable range.

    I ran a 12-27 Dura Ace block for a while (I think it's fair calling it a road cassette, Dura Ace is a road group after all) and it was a bit crap, needed to shift on the front constantly.
    £100 on a cassette is crazy!

    Only gets you 1/3 of an XX one!
  • YeehaaMcgee
    YeehaaMcgee Posts: 5,740
    nicklouse wrote:
    the really different gears and the loss of the highest gear and the low gears.
    Loss of the highest gear? I don't follow.
    My photos
  • nicklouse
    nicklouse Posts: 50,675
    generally road cassettes have not had a 11T. it is still a bit new for them.

    11T is not often needed on a road bike due to their different requirements.
    yes now that they have compact cranksets things are changing.

    but when looking at an MTB cassette you expect an 11T cog. roadies do not.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • YeehaaMcgee
    YeehaaMcgee Posts: 5,740
    Oh. didn't know that.
    My photos
  • cooldad
    cooldad Posts: 32,599
    YeehaaMcgee wrote:
    Oh. didn't know that.
    And you call yourself a roadie.
    I don't do smileys.

    There is no secret ingredient - Kung Fu Panda

    London Calling on Facebook

    Parktools
  • YeehaaMcgee
    YeehaaMcgee Posts: 5,740
    No, I don't. How dare you make such a suggestion.
    My photos
  • Anonymous
    Anonymous Posts: 79,667
    cooldad wrote:
    YeehaaMcgee wrote:
    Oh. didn't know that.
    And you call yourself a roadie.
  • YeehaaMcgee
    YeehaaMcgee Posts: 5,740
    raceface gt wrote:
    cooldad wrote:
    YeehaaMcgee wrote:
    Oh. didn't know that.
    And you call yourself a roadie.
    Well done, you've learnt how to use the quote feature.
    However, you seemed to forget to write a reply.
    My photos
  • cooldad
    cooldad Posts: 32,599
    YeehaaMcgee wrote:
    raceface gt wrote:
    cooldad wrote:
    YeehaaMcgee wrote:
    Oh. didn't know that.
    And you call yourself a roadie.
    Well done, you've learnt how to use the quote feature.
    However, you seemed to forget to write a reply.
    Baby steps.
    I don't do smileys.

    There is no secret ingredient - Kung Fu Panda

    London Calling on Facebook

    Parktools
  • njee20
    njee20 Posts: 9,613
    Most 10 speed road cassettes have an 11, much less common on 9 speed.
  • YeehaaMcgee
    YeehaaMcgee Posts: 5,740
    Mine goes up to eleven.
    My photos
  • rockmonkeysc
    rockmonkeysc Posts: 14,774
    Single speed is very light, fixed gear is even lighter.
    Transition Patrol - viewtopic.php?f=10017&t=13070235
  • njee20
    njee20 Posts: 9,613
    Is it? Never seen a lightweight fixed hub, reckon a silly light freehub job would be lighter!
  • rockmonkeysc
    rockmonkeysc Posts: 14,774
    I always thought a hub without a freehub would be lighter than one with a freehub.
    Transition Patrol - viewtopic.php?f=10017&t=13070235
  • Tim.s
    Tim.s Posts: 515
    I had a 9 speed 105 cassette and mech on a hardtail a while ago. It was alright, wouldn't of wanted to do much uphill work on it.
    "Didn't hurt"
  • njee20
    njee20 Posts: 9,613
    I always thought a hub without a freehub would be lighter than one with a freehub.

    All things being equal yes, but I'm not aware of companies turning out ultra light fixie hubs (torque an issue perhaps?) whilst there are plenty of ultra light freehubs out there. Even the Mavic track wheels are heavier than the road ones, despite not having a braking surface or a freehub.

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