new rear mech

scarthie99
scarthie99 Posts: 209
edited March 2012 in Road buying advice
look at new rear Derailleur i damage my 105 5700 rear Derailleur when a car cut my up on sunday bike ride.i fell off my bike so some marks are on my Derailleur.its change gear ok it got my home.looking at Shimano Ultegra 6700 10 Speed Rear Derailleur will this be ok with my Shimano 105 STI Levers 10sp 5700.or do i just buy a new 105 5700 rear derailleur crc are selling for &35 short cage.what is the easy way to tell if my rear mech which is damage is short cage.is this right you can measure distance of the Jockey wheel center to get the cage any info :|ps Crank: FSA Gossamer Pro BB30, 34/50. Rear Cogs: Shimano 105, 12-27 just need some info cheers :P

Comments

  • maddog 2
    maddog 2 Posts: 8,114
    is this the product of an online translator?
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • danlikesbikes
    danlikesbikes Posts: 3,898
    You should be fine with either replacement - typically long cage derailleur's are used on bikes with 3 front chain rings so normally mountain bikes and short cage with 2 front chain rings so normally road bikes/tt bikes.

    Without getting technical you can and will find a small number of people using a long cage on a road bike but this is more to do with gear set up.

    So to answer your question go with the short cage.
    Pain hurts much less if its topped off with beating your mates to top of a climb.
  • scarthie99
    scarthie99 Posts: 209
    cheers for the info.i get one order then.do get the Ultegra 6700 one or stick with the 105 5700 rear derailleur :D
  • ddraver
    ddraver Posts: 26,742
    Not much in it really, both are good and will work fine with the levers. If you can afford the Ultegra go for it but you probably won't notice the difference really...
    We're in danger of confusing passion with incompetence
    - @ddraver
  • scarthie99
    scarthie99 Posts: 209
    CRC are selling 105 5700 rear derailleur short cage for £35 i go get one.cheers for the info cheers :lol:
  • ddraver
    ddraver Posts: 26,742
    Sorted! Where are you from out of interest?
    We're in danger of confusing passion with incompetence
    - @ddraver
  • graham_g
    graham_g Posts: 652
    If it is only cosmetic damage on the old one - sell it! There's plenty of people like me who don't care how scabby their kit looks as long as it works :wink:

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