Single Speed Conversion
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  1. #1
    RoadBikeReview Member
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    Sep 2007
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    Single Speed Conversion

    I'm converting a 1997 Peugeot Hybrid to a single speed. The original deraillure was a Shimano Altus with a rear dropout deraillure hanger setup. I've given up on fiding something to replace the dropout hanger (probably something easy to order that I just haven't found) and am going for a fixed chain length approach.

    The original fron chain crank/chain ring set up was a bit strange with the triple chain ring and crank all one assembly that was welded together -- can't take the chain rings apart from the crank. The bottom bracket is a spindle/ball bearing setup, rather than a cartridge style.

    The question -- any hints about a replacement crank and chain ring? I can always go with the original triple and just use the large chain ring, but it seems tacky. Any thoughts/insights?

    Thanks from a novice wrench.

  2. #2
    Arrogant roadie.....
    Reputation: Dave_Stohler's Avatar
    Join Date
    Jan 2004
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    4,232
    Does the bike have horizontal dropouts? If it doesn't, you WILL need a chain tensioner to fit where your old dérailleur used to be.

    As far as the welded crank-ring assembly, you can always just elect to leave the chain on the middle ring and just go with that. Otherwise, you'll need to buy a new crankset and a new ring, and swap pedals.
    We are the 801
    We are the central shaft

  3. #3
    duh...
    Reputation: FatTireFred's Avatar
    Join Date
    Jan 2005
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    9,658
    Quote Originally Posted by Dave_Stohler
    Does the bike have horizontal dropouts? If it doesn't, you WILL need a chain tensioner

    not nec... if not he just won't have much choice in gearing

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