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  1. #1
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
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    n = 1 (depending on how you count them).

    I decided to reassemble my Porsche mountain bike frame into a usable bicycle. It'll have (mostly) period correct but not original matching parts. I've even got a couple of trails in mind, one that I can ride to from home, that I'm not afraid to ride. Unfortunately, the assembly process is at an impass.

    I can't do the drive train because I don't have the right bottom bracket. The Porsche has a 68 mm BB shell. An easily solved problem and not too expensive, but it'll delay me for another week or so.

    I can't do the brakes because my fork doesn't have any spring retention holes for V-brakes. I was going to kluge a solution but my machinist son advised against it. He thinks that he can acquire a set of stops from a friend or, if necessary, will make me a set. I actually have a set of Magura hydraulic brakes that would work, but I've gotten rid of most of my hydraulic brake stuff and I don't want to mess with them.

    So seat, handlebar and rear brake are pretty much all that I can do today. That's OK though. Actually, I kind of like thinking through the process. That's part of what I like about working on bikes that are a bit out of the mainstream.
    My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.

  2. #2
    Have bike, will travel Barrettscv's Avatar
    Join Date
    Feb 2006
    Windy City
    My Bikes
    A road bike for every purpose
    7 Post(s)
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    Many of the forks on vintage bikes that use cantilever or V-brakes seem to have issues. I just replaced a badly designed OE fork with a better replacement found on eBay. I hated the idea of using a newer replacement fork, but having reliable brakes is just too important. In my case, the fork had a very narrow 55mm cantilever post distances and lacked a mounting hole for a fork mounted brake cable hanger.
    2014 Trek DS.1: "Viaggiatore" A do-it-all bike that is waiting in Italy
    2012 Pedal Force CG2: "Secolo Bicicletta" the modern carbon fiber road bike
    2012 Pedal Force CX2: "Carbone CX" the carbon fiber CX bike
    2010 Origin 8 CX 700: "Servizio Grave" Monstercross/29er bike
    1997 Simoncini Special Cyclocross: "Little Simon" lugged Columbus steel CX bike
    1987 Serotta Nova Special X: "Azzurri" The retro Columbus SPX steel road bike

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