10 speed upgrade...????

beany123
beany123 Posts: 133
edited March 2011 in MTB workshop & tech
im currently undergoin a rebuild and i need a new rear derailleur so im now thinking shall i go 10 speed??? im looking at sram i think,

I have a brand new m770 xt crank which was purchased as a 9 speed im assuming this will be fine as I cant see why not??

i looking at buying a sram x9 rear mech 10 sp, a 1-10spd sram shifter, 10sp cassette and 10spd chain, surely my current front mech shifter will do exactly the same job and does not need changing???

am i on the right lines guys???
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Comments

  • supersonic
    supersonic Posts: 82,708
    All covered in the FAQs.
  • andyrm
    andyrm Posts: 550
    beany123 wrote:
    im currently undergoin a rebuild and i need a new rear derailleur so im now thinking shall i go 10 speed??? im looking at sram i think,

    I have a brand new m770 xt crank which was purchased as a 9 speed im assuming this will be fine as I cant see why not??

    i looking at buying a sram x9 rear mech 10 sp, a 1-10spd sram shifter, 10sp cassette and 10spd chain, surely my current front mech shifter will do exactly the same job and does not need changing???

    am i on the right lines guys???

    You sure are - no need to change the front setup. You may well get away with losing your big ring dependent on what ratios are on the chainset and how pedally a rider you are - this will give you loads more ground clearance as well.

    Hope that helps!

    :D
  • 02gf74
    02gf74 Posts: 1,168
    not sure why you wnat to but generally 10 speed set up utilise wider range cassetter o nthe back and twin rings instead of 3; unless you want 30 speed ... which is a bit pointless since you will have overalapping gears hence why 2 rings on front,

    10 speed chanis are thinner so won't last as long as equivalent 9 speed and are more expensive.

    8 spd was fine for me but I changed over my bikes to 9 sp to reduce numnber of different parts needed to keep them running.,