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  1. #1
    mtbr member
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    Sep 2007
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    38

    replacement ring for raceface evovle single

    as the title shows i have a raceface evolve xc single spped crank that came with a 32 tooth. but because of issues with asthama i now need a 30 tooth so i can spin a little more but since it has a 104 bolt spacing mylbs is having trouble finding the substatution for me. so i told him i would ask all the geeks on mtbr and see what i could come up with thanks again in advance everyone

    jester

  2. #2
    mtbr member
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    Mar 2007
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    313
    Go one tooth larger on your cog?

  3. #3
    mtbr member
    Reputation: boomn's Avatar
    Join Date
    Jul 2007
    Posts
    9,647
    What FKMTB07 said.

    30 tooth chainrings are rare and expensive for 104BCD cranks. They are usually custom made and might even involve grinding down the crank arms a bit so the chain doesn't rub

    Larger rear cogs are usually cheaper in comparison and easily available.

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