Predator 212 Cruiser build. "Katana"

Discussion in 'Motorized Cruiser Bicycles' started by ultralight01, Dec 13, 2016.

  1. ultralight01

    ultralight01 New Member

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    Undecided on the bike. Thinking about the Micargi Fatal Love 29".
    I may purchase a mountain bike with disc brakes and use the wheels and front fork on the cruiser.
    I have a predator 212 ready and governorless.
    My Schwinn Sierra build has been cancelled, I'm using the bike for the parts I need to build this bike and others.
    I don't know how to take care of or remove a coaster brake. I've done research but I'm still confused about these things:
    If you take the brake arm off, put a sprocket on, and put the arm back on, the brake is still active, correct? I do not want a coaster brake!
    Why do these things lock up on people and send them skidding sideways?
    Is it worth it to just replace the wheel with a wheel that has a normal hub?

    Ok. So, other things I'm working on are the jackshaft. I have a piece of steel and a pillow block that should work as the plate. I'll need a back sprocket and 3/4" clutch.

    Hopefully whatever 29er mountain bike I get for wheel replacement has wide rims for wide tires. I've found getting a whole bike is cheaper than buying a disc brake kit and a wheel set.

    Time to get building the "Katana".
     
  2. buba

    buba Member

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    Go for double disk hub up front and rear disk as well!!
     
  3. TheNecromancer13

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    I have never found double disc to be necessary. Just use a larger diameter disc instead and save some money.
     
  4. ocho ninja

    ocho ninja New Member

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    Or you can incorporate a jack shaft disk brake, i think you can small disk rotors online as small as 140mm or 120mm and use a sprocket adapter sold by AGK under their jack shaft section.
     

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    #4 ocho ninja, Dec 14, 2016
    Last edited: Dec 14, 2016
  5. ragdolldude

    ragdolldude Member

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    Be aware of the fact that if you your drive line chains, the brake won't do much good. I had a mini bike in 1965 that I made. I put a brake on the jackshaft that was mounted on 1/2" shaft and pillowblocks. I noted a major loss in braking, had to lay minibike down, and slide some 50 feet on a sidewalk at the school where I was riding. In that case, the set screw came lose, key came out, and no brakes. Mini bike bounced some 2 ft in the air when it hit a parking lot curb, and landed on my foot. Had to take my shoe off, my right foot grew several shoe sizes quickly. I don't recall any Locktite being around back then, but I did grind down set screw on brake, so I could use a double set screw to avoid the same issue in the future. But a loss of the final chain drive would have resulted in the same accident.
     
  6. ultralight01

    ultralight01 New Member

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    Well sure, If I did a jackshaft disc brake it would be after I already put a front disc break on. Because the front is more important in my opinion, and I'm familiar with chains breaking and having no brakes.
     
  7. ragdolldude

    ragdolldude Member

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    My point was that the brake should be on the wheel, like a disk or drum type brake. I wouldn't rely on a front brake only for stopping safely on the bike in the upright position.
     
  8. ultralight01

    ultralight01 New Member

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    Well, In the worst case scenario of a chain popping off, a front disc brake will stop you enough to get you home at least. I should carry master links... and a tube repair kit.
     

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