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Motorized Cruiser Bicycles The beach cruiser has always been great bicycles to motorize. They just look good with a motor. Use this section to share and discuss about motorizing this classic.

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  #1  
Old 12-13-2016, 08:53 PM
ultralight01's Avatar
ultralight01 ultralight01 is offline
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Join Date: Oct 2016
Location: Hood River, Oregon
Posts: 291
Default Predator 212 Cruiser build. "Katana"

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".
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  #2  
Old 12-13-2016, 10:57 PM
buba buba is offline
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Location: los angeles
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Default Re: Predator 212 Cruiser build. "Katana"

Go for double disk hub up front and rear disk as well!!
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  #3  
Old 12-14-2016, 12:10 AM
TheNecromancer13 TheNecromancer13 is offline
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Join Date: Jan 2015
Location: Portland, Oregon
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Default Re: Predator 212 Cruiser build. "Katana"

I have never found double disc to be necessary. Just use a larger diameter disc instead and save some money.
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  #4  
Old 12-14-2016, 03:03 AM
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ocho ninja ocho ninja is offline
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Location: San Jose, CA
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Default Re: Predator 212 Cruiser build. "Katana"

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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Last edited by ocho ninja; 12-14-2016 at 03:09 AM.
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  #5  
Old 12-14-2016, 10:40 AM
ragdolldude ragdolldude is offline
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Join Date: May 2016
Location: Mira Loma, CA
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Default Re: Predator 212 Cruiser build. "Katana"

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.
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Old 12-14-2016, 11:00 AM
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ultralight01 ultralight01 is offline
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Location: Hood River, Oregon
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Default Re: Predator 212 Cruiser build. "Katana"

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.
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Old 12-14-2016, 01:55 PM
ragdolldude ragdolldude is offline
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Default Re: Predator 212 Cruiser build. "Katana"

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.
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  #8  
Old 12-14-2016, 02:48 PM
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ultralight01 ultralight01 is offline
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Join Date: Oct 2016
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Default Re: Predator 212 Cruiser build. "Katana"

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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