Motorized Bicycle Engine Kit Forum  

Sponsors



Go Back   Motorized Bicycle Engine Kit Forum > Bicycle Motor > 4 Stroke Bicycle Engines & Kits

4 Stroke Bicycle Engines & Kits 4 stroke engine kits are great if you want reliability or do not want to mix your oil and gas. Learn from each other how to get the most out of your 4 stroke bicycle engine

Reply
 
Thread Tools Display Modes
  #1  
Old 12-02-2016, 03:33 PM
ultralight01's Avatar
ultralight01 ultralight01 is offline
Motorized Bicycle Elite Member
 
Join Date: Oct 2016
Location: Hood River, Oregon
Posts: 289
Default 79cc vs 212cc Predator

So I'm about to build a new bike. I did build a china girl kit bike as you may or may not remember, but now I want something more reliable.
I want to go with a predator, since I have experience with these engines from building go karts. I have a lot of experience with the 212, but I've never touched a 79cc. Sounds like weak crap for a go kart, but for a bicycle it seems like plenty.

I already have a 212cc that I got from Necromancer. I'm in the middle of taking out the clip that holds the governor on and it's droving me nuts, but what the heck. I'll get it out.

The next bike that I want to build will be an enduro-type thing. I have a schwinn sierra frame (Thanks again Necromancer) that I'm planning to put a crf50 seat, plastics, and tank on. No rear suspension, mountain bike front fork, and beefed up components in general. Should be fun to jump and do some light off roading with.

I'm scared of a 212 on a bicycle though. I keep asking myself, Is this thing too heavy? To powerful? To hard to pass by the cops?

Should I just get a 79cc?

I'd appreciate any opinions. Thank you
Reply With Quote
  #2  
Old 12-02-2016, 09:05 PM
Venice Motor Bikes's Avatar
Venice Motor Bikes Venice Motor Bikes is offline
Custom Builder / Dealer/Los Angeles
 
Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 6,098
Default Re: 79cc vs 212cc Predator

A 49cc 4-stroke kit is inexpensive, extremely reliable (& very easy to put together).

I like the 7G kits.

If your heart is set on a 79 vs 212 engine?, I'd go with the 212.
__________________
For motorized bicycle sales, service & engine kits in Los Angeles, please visit us at- www.VeniceMotorBikes.com

Follow VMB on facebook>>> facebook.com/VeniceMotorBikes

Follow VMB on Instagram>>> instagram.com/venicemotorbikes
Reply With Quote
  #3  
Old 12-02-2016, 09:23 PM
Tony01's Avatar
Tony01 Tony01 is offline
Motorized Bicycle Elite Member
 
Join Date: Nov 2012
Location: San Jose, CA
Posts: 724
Default Re: 79cc vs 212cc Predator

Quote:
Originally Posted by ultralight01 View Post
Sounds like weak crap for a go kart AND for a bicycle
Fixed for you.

Quote:
I keep asking myself, Is this thing too heavy? To powerful? To hard to pass by the cops?
212 not hard to pass by cops at all. Just floor it and lose him on a bike path or park.
__________________
I don't always listen to Alice in Chains..... but when I do, SO DO THE NEIGHBORS
MxTrq clutch tuning | msrfan 2spd | 212cc 2spd | 3.5hp 2spd | Thud 2spd | CVT tuning
Reply With Quote
  #4  
Old 12-02-2016, 09:50 PM
ultralight01's Avatar
ultralight01 ultralight01 is offline
Motorized Bicycle Elite Member
 
Join Date: Oct 2016
Location: Hood River, Oregon
Posts: 289
Default Re: 79cc vs 212cc Predator

Haha tony. So what should I do... argh. No real opinions except go with the 212 for no given reason
Reply With Quote
  #5  
Old 12-02-2016, 11:46 PM
culvercityclassic's Avatar
culvercityclassic culvercityclassic is offline
Motorized Bicycle Elite Member
 
Join Date: Sep 2009
Location: Culver City, Ca
Posts: 2,967
Default Re: 79cc vs 212cc Predator

I like the 212, it must be built well tho, do it right spend the money on brakes and drive system. The 79cc and 99cc are a disappointment power wise, that's because I started with the 200cc and then back tracked to the 99cc...
__________________
CulverCityClassic
wolfcreativecustoms.com
Reply With Quote
  #6  
Old 12-03-2016, 12:34 AM
ultralight01's Avatar
ultralight01 ultralight01 is offline
Motorized Bicycle Elite Member
 
Join Date: Oct 2016
Location: Hood River, Oregon
Posts: 289
Default Re: 79cc vs 212cc Predator

So it is heavy or scary or anything like that? Too wide?
Reply With Quote
  #7  
Old 12-03-2016, 12:47 AM
culvercityclassic's Avatar
culvercityclassic culvercityclassic is offline
Motorized Bicycle Elite Member
 
Join Date: Sep 2009
Location: Culver City, Ca
Posts: 2,967
Default Re: 79cc vs 212cc Predator

It's big, it's heavy, it's wide but it's fun... better to have the power and not need it than to to want the power and hot have it...Build It!!!!
__________________
CulverCityClassic
wolfcreativecustoms.com
Reply With Quote
  #8  
Old 12-03-2016, 12:57 AM
ultralight01's Avatar
ultralight01 ultralight01 is offline
Motorized Bicycle Elite Member
 
Join Date: Oct 2016
Location: Hood River, Oregon
Posts: 289
Default Re: 79cc vs 212cc Predator

Done. 212 it is. I'll probably use it more off road than on road.
Reply With Quote
  #9  
Old 12-03-2016, 01:04 AM
Tony01's Avatar
Tony01 Tony01 is offline
Motorized Bicycle Elite Member
 
Join Date: Nov 2012
Location: San Jose, CA
Posts: 724
Default Re: 79cc vs 212cc Predator

Dude 212 is loads of fun. mine is my daily driver. I ride it rain or shine. Apart from a removed governor it's bone stock. The head has some sharp corners in it that I'll smooth out when I make some upgrades. I'm planning easy stuff, shave head and install ratio rockers.

The shroud and fan make it wide. I removed both and cut down the starter cup and make it a rope start. Takes off like 3".
__________________
I don't always listen to Alice in Chains..... but when I do, SO DO THE NEIGHBORS
MxTrq clutch tuning | msrfan 2spd | 212cc 2spd | 3.5hp 2spd | Thud 2spd | CVT tuning

Last edited by Tony01; 01-05-2017 at 03:37 AM.
Reply With Quote
  #10  
Old 12-03-2016, 11:56 AM
ultralight01's Avatar
ultralight01 ultralight01 is offline
Motorized Bicycle Elite Member
 
Join Date: Oct 2016
Location: Hood River, Oregon
Posts: 289
Default Re: 79cc vs 212cc Predator

So the engine is fine with no fan? And you just keep a rope in your pocket or something to start it?
I'm also wondering what kind of mileage I'll get with a .7 gallon tank.

Last edited by ultralight01; 12-03-2016 at 12:01 PM.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 08:41 AM.


Sponsors

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
MotorBicycling.com