SideHacked! Epilogue

Discussion in 'BUILD OFF #7' started by JoKeR63, Apr 30, 2012.

  1. JoKeR63

    JoKeR63

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    It's Back!
    May 1st, and time once again to assemble some mildly usefull two wheeled (or three, as in this case) machinery.
    I'm building a sidecar bike this time around and it has a purpose. By contest end, my one and only Grand daughter will be one year old, and ready for some new adventures. Even before she was born, I was dreamin' up ideas on how I'd haul her around.

    My first thought was a trailer, but I find myself not enjoying the idea of dragging her 6 feet behind me. They're hard to monitor and it's kind of impersonal. The second idea was a trike with a front mounted kiddy seat but that meant frame mods that were out of the scope of the contest. So I've settled on the side car idea, it's kinda' like a sociable tandem, but one person isn't capable of helping with purpulsion. To get down to the level of the sidecar, I need a low bike, and one of the easiest ways to do that is 20" wheels.
    I took a solemn oath to never build another 20" bike for the buildoff, but this isn't being built just for me. Safety has to be part of the formula and low helps stability. Which leads to my choice of;

    "The Bike everyone Loves to Hate",

    [​IMG]

    The Schwinn OCC Chopper!

    First off, these things are terrible, they're too heavy, and they're sized for kids. So I'm once again goin' to take the rulebook to the woodshed and stretch the frame with extentions (bolt-on of course!) and a lay-back seat post. The next issue is gearing, or more like the lack thereof. With the rear wheel moved back 6", there will be room for a jack shaft. I've got parts for a 5 spd cluster and an outboard brake disk (aka, the Veg-o-Matic!). I'll be putting it on a diet as well, I can reduce some weight here and there. And i'll keep track of any weight savings. Most components of the side car are aluminum. And I'm hopin' to build the body out of coroplast.

    I'm going with my "Build first, get it working, then strip apart and paint" construction technique again this time around as this with be the most complicated build-off bike to date. I really like to keep things simple, but that just wouln't cut it for this.

    Challenges;
    1 The baby enjoys riding in it.
    2 Keeping the weight down.
    3 Safety.
    4 See #3
    5 Transportability.

    Some of these I have plans for, some will be blind luck. For #1, I plan to use a regular infant car seat in the sidecar, the idea being I can take the seat out of the car baby and all and strap it in the sidecar for the least amount of baby stress. This will help with #'s 3 & 4, and eliminate the need for a helmet, which doesn't work good on babies anyhow. When she gets older, I'll install a bench in the car and then graduate her up to a helmet.

    Well I don't want to give every detail away, it's time to get to buildin'!

    The Pile O Parts;
    [​IMG]
     
  2. yoothgeye

    yoothgeye I <3 Single Speeds Moderator

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    Re: SideHacked

    Who shall be the winner in the FIRST ANNUAL SIDECAR SUB-BUILD-OFF!
     
  3. JoKeR63

    JoKeR63

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    Re: SideHacked

    That's why I'm diggin' the grandparent thing, all the fun, much less responsibility.
     
  4. dragnusa

    dragnusa

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    Re: SideHacked

    I like number 2 keep weight down, your behind the 8 ball already
     
  5. JoKeR63

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    Re: SideHacked

    Yea, it's still gonna' be heavy. But just removing the kickstand is close to 2 lbs. At this level of complexity every little bit helps.
     
  6. yoothgeye

    yoothgeye I <3 Single Speeds Moderator

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    Re: SideHacked

    Keeping weight down means you need speed holes.

    I bought the bike MONTHS ago that will solve my gearing problems, so weight shouldn't matter to me. I will be using steel to my sidecar.
     
  7. JoKeR63

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    Re: SideHacked

    I was going to holesaw out the headtube brace but feel it's pushing the rules a bit too far. Might do it after the contest. Engineers shave 5 grams on a part of an F250 to save weight, it's all about the sum total. If I end up with a bike that weights 80 lbs versus 100 lbs I've accomplished my goal.
     
  8. yoothgeye

    yoothgeye I <3 Single Speeds Moderator

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    Re: SideHacked

    That's not pushing the rules, look at Roland from last year: viewtopic.php?f=60&t=43611

    Amazing bike with speed holes in the seat tube, that is not a major design change on the frame and nobody here would say so.

    Roland got a lot of votes too!
     
  9. JoKeR63

    JoKeR63

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    Re: SideHacked

    Well, you may see some after all. But Roland may be a bit too "Swiss Cheesy" for me.
     
  10. yoothgeye

    yoothgeye I <3 Single Speeds Moderator

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    Re: SideHacked

    I loved the look of his speed holes, but I was concerned about strength, don't know how much he rode it, I've ridden my bike from last year lots, so it was important to me for it to be strong.
     
  11. JoKeR63

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    Re: SideHacked

    His seat tube is in stretch/crush so the holes shouldn't affect it much, plus I don't see a seat post.
     
  12. Brentley

    Brentley

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    Re: SideHacked

    Just like we like to say at my workplace, "Safety third!"
     
  13. JoKeR63

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    Re: SideHacked

    Opps!, looks like I need to add "not necessarely in that order". BUT, if she dosen't like it, the safety priority goes down. :wink:
     
  14. char

    char

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    Re: SideHacked

    That cool! Looking forward to seeing what you do with it! :)
     
  15. SCHWINNRAY69

    SCHWINNRAY69

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    Re: SideHacked

    Ooooo! :shock:
     
  16. texasbigjon

    texasbigjon Pro Member

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    Re: SideHacked

    love the sidehack themes this year. :D looks to be a challenging project. good luck to ya!
     
  17. JoKeR63

    JoKeR63

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    Re: SideHacked

    Todays objective was to get the jack shaft in. Everything is kinda' build around this part of the drive.
    First step was to get all the junk off, 2&1/4 lbs.

    [​IMG]


    [​IMG]

    The initial mock-up.

    [​IMG]

    The mounts need a bit of an offset. Left side is brazed in.

    [​IMG]

    And with the shaft in.

    [​IMG]
     
  18. yoothgeye

    yoothgeye I <3 Single Speeds Moderator

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    Re: SideHacked

    OK, now you've got some explaining to do. I see the disk brake on the jack, so are you going to make the wheel hub a fixed gear?
     
  19. JoKeR63

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    Re: SideHacked

    Yes. Using #35 industial (or minibike) chain. It's a lot stronger than bike chain, and I have the sprockets.
     
  20. JoKeR63

    JoKeR63

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    Re: SideHacked

    Decided to fit the chainguard, as that offers needing some tweekin' to get right over setting things on fire. Makes for better late night workshop fun.

    [​IMG]

    [​IMG]

    I do hate a noisy chainguard. This one only clangs when shifting, I'm ok with that.
     

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