26" SS Conversion Help- Mtbr.com
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  1. #1
    mtbr member
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    Apr 2008
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    26" SS Conversion Help

    I have a Stock '08 Gary Fisher Big Sur that I want to convert to a single speed.

    Specs...http://fisherbikes.com/bike/model/big-sur/fullspecs

    I want to use as many of the existing parts keeping the conversion cost to a minimum. Also, only want to have one cog on the rear.

    What is the process for the conversion and what new parts (if any) do I need to make the conversion to an SS?
    Last edited by GF70; 07-17-2008 at 09:57 AM.

  2. #2
    surfer w/out waves
    Reputation: havnmonkey's Avatar
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    Apr 2007
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    613
    I converted my 05 Hardrock to SS here

    I would suggest atleast...

    1) spacer kit.
    2) steel cog (wider base than a cassette cog, I run a King 19t $40)
    3) steel chainring (I run a Surly 36t $40)
    4) 8sp chain (I run a KMC $16)
    5) find the magic gear ratio or get a tensioner (I run a Yess BB tensioner $60)

    You could easily do it for under $60 by shopping around... but $100 will get you a decent set up.
    "Listen, strange women lyin' in ponds distributin' swords is no basis for a system of government!..." -- Dennis the Peasant

  3. #3
    Birdman aka JMJ
    Reputation: Birdman's Avatar
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    Dec 2003
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    1,076

    Convert help

    I went with the following on a Soma Groove frame:

    Salsa 32t chainring - $20
    Forte SS kit (tensioner, spacers, 16t cog) - $20
    single ring chainring bolts - $5

    It was set up as an 8 speed before I converted, so I used the 8sp SRAM chain with a 1/2 link ($3) to keep a tighter chain and as much wrap on the rear cog as possible.

    So, with shipping, a bit over $50 (all parts bought on sale as the opportunity arose).

    You can probably use your existing middle chainring and save $20, but I like the Salsa ring as it had no shift ramps.

    If you find the right gear combination, you could even get away without a tensioner, but most spacer kit/rear cog combos are still in the $20 range or more anyway.

    Once you get into it, you'll undoubtedly start upgrading components from this basic setup.

    Read through the FAQ for more on this subject.

    Good luck - JMJ

  4. #4
    mtbr member
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    I'm just swapping my old Homegrown frame for a Soma Groove. I have the Smoothie ES as my road bike, and I love it. I built my rear wheel using the surly hub, and just use the surly chain tensioner.

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