Motorized Bicycle Engine Kit Forum  
Register FAQ Members List Calendar Mark Forums Read




Sponsors
To be a sponsor Contact Us
Donations accepted!
Our Forums


Go Back   Motorized Bicycle Engine Kit Forum > Bicycle Motor > 2 Stroke Bicycle Engines & Kits

2 Stroke Bicycle Engines & Kits 2 stroke motorized bicycle engine kits need careful installation and setup, find out how from our professionals here!

2 stroke vs 4 stroke


Discussion at Motorized Bicycle Engine Kit Forum in the 2 Stroke Bicycle Engines & Kits forum. I would probably go with a 2 stroke over a 4 stroke but that's due to cost. While you can ...
Reply
 
LinkBack Thread Tools Display Modes
  #21 (permalink)  
Old 11-03-2009, 07:07 PM
Motorized Bicycle Member
 
Join Date: Oct 2009
Location: Atl, Georgia
Posts: 41
Default Re: 2 stroke vs 4 stroke

I would probably go with a 2 stroke over a 4 stroke but that's due to cost. While you can build a 4 stroke setup with a Titan engine and a BMP friction drive for around $350, you run into problems associated with friction drives and you will have a large weed-wacker like engine on the back of your bike. If you look at the more expensive setups, you are looking at spending more than $500.

With a 2-stroke from some place like Thatsdax, you might end up spending close to $300 on everything including tools, but then you have a few extra tools to use in the future. You will also know much better the components of the engine and how to service your bike.

I am a first year college student, and looking for easier transportation I elected to go with a 2 stroke setup. Yes, I've run into a lot of problems getting the engine to work with my bike but I never expected going with a 2 stroke to be easy. I'd rather keep it as a side project since I have limited funds than to go with a 4 stroke friction drive. Friction drives will always have the fundamental problems associated with a friction drive setup--- performance in wet or off-road conditions.

If I had the dough, I would definitely go with a good 4 stroke belt or chain drive but alas I don't have $500+ to drop on a setup like this and I doubt that many college people or those who are looking for cheap transportation do.
Reply With Quote
  #22 (permalink)  
Old 11-03-2009, 08:19 PM
Motorized Bicycle Elite Member
 
Join Date: Apr 2009
Location: west covina,ca
Posts: 123
Default Re: 2 stroke vs 4 stroke

you know yamaha yz490 i had was thee fastest bike i ever had and that being said i have agree with venice because my rd400 was also fast too! so you all have your own opinion!!!!!!!!!!!!
Reply With Quote
  #23 (permalink)  
Old 11-03-2009, 09:56 PM
bairdco's Avatar
a guy who makes cool bikes
 
Join Date: Aug 2009
Location: orange county, ca
Posts: 1,729
Default Re: 2 stroke vs 4 stroke

Quote:
Originally Posted by marts1 View Post
I've read more then once, longer rides on a 2 could damage the motor. Definitly not on a 4.
i dunno about that. i've had my 66cc 2 stroker for 3 months now, and i ride it everywhere at full throttle, city traffic, idle at lights, etc.

there's a few stretches of road around here where i can go 5 miles in a bike lane without stopping, and i'm raging at 35+mph the whole time.

monday, i rode 10+ miles, stopped for a smoke, rode another ten, got a haircut, 10 more, smoke, then 10 more home.

40 mile round trip, 80 degrees out, at WOT, just to get a haircut.

and that's a pretty normal ride. i've done 80 miles in one day, just raging through backroads all day, again, at WOT.

i keep waiting for this china bomb to explode and take my kneecaps with it, but it just begs for more.
Reply With Quote
  #24 (permalink)  
Old 11-04-2009, 01:24 AM
Motorized Bicycle Elite Member
 
Join Date: May 2009
Location: colorado
Posts: 505
Default Re: 2 stroke vs 4 stroke

Im going to make a statement here you agree or disagree. You 2 strokers are going to mess it up for us trying to do your heros logic, al gore hates 4 strokers. Were quiet and non invasive plus were non liberal polluting, no bs to feed on.
Reply With Quote
  #25 (permalink)  
Old 11-04-2009, 03:17 AM
bairdco's Avatar
a guy who makes cool bikes
 
Join Date: Aug 2009
Location: orange county, ca
Posts: 1,729
Default Re: 2 stroke vs 4 stroke

i see your point. but i raise you this:

if two strokes get banned, 4 strokes will too. it will be all inclusive. something like, "motorized bicycles are a detriment to society and have an adverse effect on the planet's ozone layer."

basically, you'll be lumped in. do you think cops know the difference between a 2 stroker and a 4 putter?
Reply With Quote
  #26 (permalink)  
Old 11-04-2009, 06:06 AM
Motorized Bicycle Senior Member
 
Join Date: Jan 2008
Location: England
Posts: 83
Default Re: 2 stroke vs 4 stroke

I can't see 2 strokes getting banned, at least not here. They have pretty much phased them out of production but banning them is another story when they are already in such short numbers. They put emission laws in on new engines that a 2 stroke just cannot pass (hense the demise of the yamaha dtr125) but a blanket ban is unjustifyable when 2 strokes are usually just the demain of the hobbiest.
Reply With Quote
  #27 (permalink)  
Old 11-04-2009, 08:39 AM
Motorized Bicycle Newbie
 
Join Date: Nov 2009
Location: Malta
Posts: 11
Default Re: 2 stroke vs 4 stroke

so performance wise...what would u suggest? what i really want is a 80cc 2 stroke but its illegal in malta :S
Reply With Quote
  #28 (permalink)  
Old 11-04-2009, 08:50 AM
BarelyAWake's Avatar
Moderator
 
Join Date: Jul 2009
Location: Maine
Posts: 2,184
Default Re: 2 stroke vs 4 stroke

Well, if 2 strokes aren't banned outright, the "80" is actually a 66cc (or thereabouts) so ya can pull the sticker/plate off of it with a pretty clear conscience - there's no way to tell the difference just by lookin' at it... provided ofc that the 49cc 2 strokes are legal
Reply With Quote
  #29 (permalink)  
Old 11-04-2009, 11:16 AM
Motorized Bicycle Newbie
 
Join Date: Nov 2009
Location: Malta
Posts: 11
Default Re: 2 stroke vs 4 stroke

they are buy my dealer said the 80cc is bigger :S so guys wot do u all suggest
2stroke 50cc...150€
2stroke 60cc...185
2stroke 80cc...200
4stroke 50cc...230
if the 2strokes are the same size im getting a 80cc but still not conviced about 4 stroke...they seem just about as reliable as 2stroke and less powerful.
Reply With Quote
  #30 (permalink)  
Old 11-04-2009, 11:23 AM
BarelyAWake's Avatar
Moderator
 
Join Date: Jul 2009
Location: Maine
Posts: 2,184
Default Re: 2 stroke vs 4 stroke

are those the same made in china kits as this forum's sponsors are sellin'?

If that's the Euro yer referin' to (150 Euro = 221 US Dollar) - dude that sux You have my sympathies! Have ya shopped around?
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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -5. The time now is 05:07 AM.


Sponsors
To be a sponsor Contact Us


Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Motorized Bicycle Engine Kit Forum


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71