Helping a friend!

ashleymp777
ashleymp777 Posts: 1,212
edited August 2007 in Workshop
I'm a MTB'er but have been approrached by a friend with the following question! Needless to say i don't have a clue so I resorted to asking you guys naturally! The question was:

I've been checking out different Shimano crank sets in preparation for my Pyrenees trip. http://www.pyreneesmultisport.com/Cycli ... 20Traverse)%20Itinerary.htm

I can only find 52 / 39's, can you get other ratios such as 52 / 37, I would appreciate your advise?

Any clues!?!?
2011 Yeti ASR5 carbon: http://www.pinkbike.com/photo/5817307/

2012 Wilier Cento Uno:
http://www.pinkbike.com/photo/7134480/

Commute bike: http://www.pinkbike.com/photo/9065383/

Comments

  • mossycp
    mossycp Posts: 233
    Yes. You need to look for a compact chainset. Shimano do them with 50/34. If you hunt around you may be able to find some with 50/36 or 48/34. You can also change the rings individually but that gets a bit more tricky because you have to find ones with the correct BCD to fit your cranks
    Today is your day, your mountain is waiting, so get on your way {Dr Seus}
  • SDP
    SDP Posts: 665
    38t is minimum inner ring if you use shimano 130bcd cranks..

    i reckon a 50/34 shiamno ( compact 110bcd ) woudl suit better..
    www.mjsracing.net
  • andyp
    andyp Posts: 10,549
    A new compact chainset is definitely the best way. You can pick them up quite cheaply now and there are other brands, such as FSA, TA and Stronglight, which are compatible with Shimano.

    Failing that if your friend can fit a 29 rear sprocket that should give him a lower gear than he has now. It depends on how strong a cyclist he is as to which would be the best option.

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