105 Compact/triple swap

walkernomore
walkernomore Posts: 45
edited June 2008 in Workshop
I have a Condor Fratello, delivered September 2008, equipped with 105 10 speed, 12-27 cassette, R700 compact (50/34) crankset. Rear derailleur seems to have a medium length cage.

I am a southern softie (e.g I need 34/27 to get up the short steep hill from Kingston gate in Richmond Park going anti-clockwise), knowing which a sadistic Yorkshire mate has invited me to ride the hills around Jackson Bridge/Holmfirth in a couple of months. I think I will need a triple (and maybe an engine) but my question is, can I do a straight swap of the crankset or will I need to change other bits as well.

Also, any suggestions for least challenging routes would be greatly appreciated so I have strong grounds when I chew his head off for taking me up another mountainside.

Thanks for any help

Mark

Comments

  • MIsterGoof
    MIsterGoof Posts: 128
    Congratulations on the time machine ;)

    sorry can't help with compatibility but here are some details on the R700

    http://cycle.shimano-eu.com/catalog/cycle/products/component.jsp?PRODUCT%3C%3Eprd_id=845524441774694&FOLDER%3C%3Efolder_id=2534374302049901&ASSORTMENT%3C%3East_id=1408474395181667&bmUID=1214402067915

    I believe that then 105 STi levers are both double and triple compatible so you don;t need to replace them.

    It sounds like you might need a little more hill training, look up CROCKNORTH ROAD and SHERE road heading upto Ranmore form Horsley, try them that'll give you a workout.

    PS any clues on next weeks lottery numbers
  • walkernomore
    walkernomore Posts: 45
    :)

    I am afraid that if I myself or anyone else is allowed to profit from my gift, it will evaporate even faster than my enthsusiasm for this ride given your advice - nearly bought a house on Ranmore Common a few years back and had trouble driving up there.

    However, I can give you a tip - all the numbers are contained in the link you posted - though not necessarily in that order.

    Mark
  • speckybecky
    speckybecky Posts: 83
    Hi Walkernomore,

    I converted my bike from an R700 compact to a triple (not shimano) earlier this year. After much research (the shimano website is really useful) I found that the FC-R700 chainset uses the SM-FC6600 bottom bracket (ultegra spec) so you will need an ultegra triple chainset if you don't want to change the bottom bracket cups too (from what I remember the ultegra and 105 bb cups are different). They were selling the 6603 ultegra triple crankset on chainreaction cycles for £69.99 a few months back. You will also need a long cage rear deraillier. I had different brake levers (short reach girly ones) but I think the 105 brake/gear levers and double/triple compatible. Check out the shimano website because they have all the compatibilities listed, takes a while to figure it all out but all the info is there!

    Hope this helps!

    Becky
  • walkernomore
    walkernomore Posts: 45
    Cheers Becky

    Looks like some perfect bedtime reading.

    Mark

Categories