Predator 212 Cruiser build. "Katana"

ultralight01

New Member
Oct 30, 2016
337
0
0
Hood River, Oregon
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".
 

ocho ninja

Member
Jan 14, 2012
564
1
16
San Jose, CA
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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ragdolldude

Member
May 6, 2016
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Mira Loma, CA
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.
 

ultralight01

New Member
Oct 30, 2016
337
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0
Hood River, Oregon
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.
 

ragdolldude

Member
May 6, 2016
38
0
6
Mira Loma, CA
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.
 

ultralight01

New Member
Oct 30, 2016
337
0
0
Hood River, Oregon
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.