Converting from " 3 to 2", Help???????.

swiftyx2
swiftyx2 Posts: 203
edited July 2011 in MTB workshop & tech
Hi Folks,

Advice needed please?, ex-roadie here so be gentle!!!!!.lol.

OK so plan is to go "double and bash" with chain guide?.
My Marin is currently is fitted with a Stylo tripple chainset and I want to know can I remove my outer chain ring and fit a bash ring, then remove my middle ring and change to a 36T and then fit a chain guide?.
I then have to shorten chain????, but by how much????.

Would it be better to just get a double and bash??, like a SLX???.

Any advice would be great please.

Steve
Eddy Merckx EMX-3 Carbon Athena
Marin Attack Trail 6.8
Marin Wolfridge 6.8 Stolen by sum Scum Bags
Trek 6500
Bianchi Carbon

Comments

  • nicklouse
    nicklouse Posts: 50,675
    Yes yes and the rule is the same. around Big and Big cogs without the rear mech. BUT if there is a bottom roller you need that inplace.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • bails87
    bails87 Posts: 12,998
    Are you planning on using a BB mount chain device? It won't work if you've got a 73mm BB shell, and a GXP BB.

    Just thought I should warn you after the trouble I had: http://www.bikeradar.com/road/forums/vi ... t=12753713
    MTB/CX

    "As I said last time, it won't happen again."
  • BG2000
    BG2000 Posts: 517
    I did the same thing a few months back, and purchased a RaceFace Atlas AM double chainring/bashring kit to replace the triple rings (I really recommend this if you can find one).

    The chainstay clearance is a bit tighter with the 36T middle, but just about OK - but check this on your bike. If you've got plenty of space now with the 32T middle, you'll be OK.

    I wouldn't worry about chain guides - I've found with the bashring in place, the chain never comes off any more.

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