First SS Conversion - success - no tensioner needed!- Mtbr.com
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  1. #1
    -bustin punks
    Reputation: fatchanceti's Avatar
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    First SS Conversion - success - no tensioner needed!

    The bike is a Slingshot FarmBoy 29er. Already had a 32t front ring - picked up a cheapo Gusset brand 20t cog last weekend, and had already ordered the Rennen spacer/tensioner kit.

    The bike has 17.5" chainstays - and with the 32x20 combo I was pretty darn close - but just couldn't quite get the SRAM link connectors close enough to join. Well, I derailled the chain from the front chainring slightly and it was just enough to join the chain back up - spun the cranks forward and was in business. Took a quick spin down the block - all seems well. There is a bit of drag - but I think it's mostly coming from the chain working its way into the deep-well cog in back. I'll post a picture or two tonight.

    I'm pretty thrilled that it went together without having to use the tensioner or splice in the half link - and the chain tension seems pretty good to my newbie SSer eye. There's not much as pretty as a clean SS setup. I can't imagine marring the bike with a rear derailleur now!

    Anybody else using the "magic ratio" have to use this trick to get it started? Although now that the chain is together, it's very easy to pop the back wheel in and out, without using the slip-off trick.

    FCTi

  2. #2
    Basura Blanca
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    Is it a new chain? I ask because I had the same experience as you, but once the chain got a few miles on it and a bit of "stretch," I was dropping it on the rough stuff. I suppose I could've tried to drop half a link, but chose to go with a tensioner instead. Hopefully you'll have continued luck.
    - Joe
    We rejoice in our suffering, knowing that suffering produces endurance, and endurance produces character.

  3. #3
    -bustin punks
    Reputation: fatchanceti's Avatar
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    Yes, it's a brand spankin new chain. So I will have to watch for that. If it does become an issue, I still have the unused Rennen Rollenlager that came with my kit. There goes my clean look though.

    I think the chain is on snug enough that even a bit of stretch won't be catastrophic.

    FCTi

  4. #4
    mtbr member
    Reputation: MMcG's Avatar
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    Looking forward to the pics!!

  5. #5
    -bustin punks
    Reputation: fatchanceti's Avatar
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    a few rough shots

    here's what the new drivetrain looks like. Sorry, it's dirty and I know I have to go back and clean the rest of the sticker residue off the cog but...

    <a href="https://www.flickr.com/photos/rmplum/420587583/" title="Photo Sharing"><img src="https://farm1.static.flickr.com/154/420587583_3237557f41.jpg" width="500" height="183" alt="DSCF2554" /></a>

    <a href="https://www.flickr.com/photos/rmplum/420587598/" title="Photo Sharing"><img src="https://farm1.static.flickr.com/148/420587598_d9e57a6035.jpg" width="500" height="458" alt="DSCF2555" /></a>

    <a href="https://www.flickr.com/photos/rmplum/420587571/" title="Photo Sharing"><img src="https://farm1.static.flickr.com/170/420587571_96112c254e.jpg" width="250" height="500" alt="DSCF2553" /></a>

    The Rennen spacer kit is very nice. So is the tensioner....if I have to use it.... I'll also clean up the front end with something neater looking than that 42t chainring.

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