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  1. #1
    Senior Member
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    Aug 2005
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    Downtube Mini Suspension Mod

    Just got back from a week in the mountains with my gf ... I brought her hub-geared DT Mini along with my FS... I rode her bike a few times and it reminded me of how much I like the Mini... the only thing that I was never too keen on was the coil spring rear suspension.. seemed to bounce around more than I liked and made some suspension related noises while underway... never bothered her, but she also weighs considerably less than I... since I like elastomer rear suspension blocks with it's inherent dampning qualities, when I got back I decided to see if a Birdy elastomer would fit in place of the coil spring... it does! .. you need to fill about a 12mm gap somehow to take up some freespace ( I whittled up some delrin rod on a little hobby lathe for the spacer), but I probably could have come up with something walking the aisles of a Home Depot or the like (but without the satisfaction of cobbing something up from scratch). Anyway, I like the improvement. It's totally quiet and doesn't bob .. this setup can also be adjusted to practically 'lockup' any rear suspension movement... I used the softest Birdy elastomer (yellow). Pictured is the stock spring, the delrin rod that I made a spacer from and an assortment of elastomers ..



  2. #2
    Part-time epistemologist invisiblehand's Avatar
    Join Date
    Jun 2005
    Location
    Washington, DC
    My Bikes
    Jamis Nova, Bike Friday NWT, STRIDA, Austro Daimler Vent Noir, Haluzak Horizon, Salsa La Raza, Hollands Tourer, Bike Friday tikit
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    Sweet mod Bruce.

    -G

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