Whats the best 4 stroke kit, available on the market today

[Spanner]

Hi all, Having fitted a 4 stroke kit recently, what is the best for stroke kit out there at the moment. the one that I fitted seemed on paper to be a good thing but once assembled and ridden it really didnt live up to my expectations. so rather than throw good money at another lemon, what is the best, most reliable, well tested, kit. and why?

 

[Sidewinder Jerry]

I use the Staton Inc crank drive kit on my auto shift bike. I live in Tennessee so there's lots of long grades and steep hills to contend with. I use the Robin Subaru EHO 35 engine. David Staton is really good person to deal with. The setup I used allowed me to keep the auto shift feature on my bike.

From what I read there are several good kits and dealers out there. You should contact several of them then evaluate which dealer and kit will work best for you.

 

[jbcruisin]

I like my EZ drives.

<a href="http://s472.photobucket.com/albums/rr82/jbcruisin/EZ%20bike/?action=view&amp;current=100_1093.jpg" target="_blank"><img src="http://i472.photobucket.com/albums/rr82/jbcruisin/EZ%20bike/th_100_1093.jpg" border="0" alt="Photobucket" ></a>

<a href="http://s472.photobucket.com/albums/rr82/jbcruisin/EZ%20bike/?action=view&amp;current=QMatic008.jpg" target="_blank"><img src="http://i472.photobucket.com/albums/rr82/jbcruisin/EZ%20bike/th_QMatic008.jpg" border="0" alt="Photobucket" ></a>

 

[loquin]

Define 'Best' ...

• price
• performance
• quality/reliability
• ease of installation
• appearance
• maintainability(how easy is it to work on?)
• spares availability
• rider weight
• terrain
• climate
• ...

and, there are probably more things to consider. They ALL enter in to the mix, and every person's definition of which of these factors are important, and which are less so, is different.

For the first seven factors, think about them, and give them an importance weighting, of 1 to 10, say. Then, when comparing the various kits, you could assign them each a estimate of how well they meet the factor you're considering - also, from 1 to 10. When you've done that, multiply the two numbers together for each factor, add the results all up, and compare the numbers... the bigger the final number, the 'Better' that kit is ... for YOU.

In my case, (I want a system that is well made, very reliable 'out of the box', that I can spend my time riding, and not adjusting/fiddling with/repairing,) my personal importance weightings would be

• price: 5
• performance: 6
• quality/reliability: 10
• ease of installation: 5
• appearance: 1
• maintainability: 8
• spares availability: 9

I've attached a spreadsheet with my evaluation of some of the kits. Adjust it with your importance ratings, and your 'intangibles' (weight/terrain/climate, etc.) In my case, climate is hot and dry, so friction drive gets good performance marks. In a wet climate, not so much...

 

[4strokr]

If you're looking for best price, there is someone selling a 4 stroke kit in southern CA. for $299 with free shipping, it sparked my ear, but they will not answer the phone or return messages, honor their warranty claims(broken gearbox). For what I thought I saved, I've spent in repairs. The HuaSheng engine is really good, the drive train is where it counts. Grubee has a good one and ThatsDax is a good place to look

 

[Spanner]

Thanks for the imput, read the spreadsheet, what are you on about LoL, What I want to know is, what takes off like a 2 stroke with minimal pedalling, it has to fly over the steepest hills, Be bulletproof with no manufacturing faults or suspect materials or weakspots, or false claims of superior performance. Eg: is the skyhawk 4gt a worthy kit? its been around a while now, how are people finding it, or is there something better?

 

[Anigai]

You cant beat a honda for realiablity, if bulletproofs what you want this is likely the one im going for myself

http://www.smallenginewarehouse.com...Drive (Horizontal or Vertical Mount) 7000 RPM

 

[Sidewinder Jerry]

The engine is only one part of the equation the drive system also plays a big part.

Here are important questions to consider when building or buying for yourself or others:

1) What is the predominant riding terrain?
(Level ground, hills, asphalt or dirt etc...)

2) What type of physique does the primary rider have?
(Large, small, short, tall or health issues etc...)

3) What will the rider's local laws allow and require them to have?
(Lookup and personally read these laws.)

4) What kind of bike is being motorized?
(Mountain, road, whizzer or recumbent etc...)

5) What is the bike to be used for?
(Shows, long trips, around town, off road or racing etc...)

6) How much of a budget is to be used for the build or buy?
(All at the start or as you can afford projects etc...)

Seek the answers to these questions in order to get the most out of the bike you're building or buying. We're here to help with any questions you may have. The purpose of the "Questions to Consider" is not to overwhelm or confuse you. Rather help you focus in on what will work best for you and help you develop a building and/or buying philosophy. This site has lots of people who can help you but the only way they can is by asking questions. Any one of the questions to consider somebody here can help you with.

A fool never learns from their mistakes.

A smart person learns from their mistakes.

A wise person learns from the mistakes of others.

Good luck with your build or buy.

"I became rich by hiring people smarter than me". Andrew Carnegie

 

[The_Aleman]

I have nearly 5000 miles on my HS and 5:1 4G through a SBP kit, the motor itself has been bulletproof, aside from the carburetor gumming up kinda easy.

I had a few problems with the 4G clutch and clutch drum, but nothing a replacement didn't fix. Grubee has improved them since I bought mine 2 years ago.

IMO, the best all-around kit is an EZM Q-matic with Huasheng. My brother bought the very first retail production Q-matic, it's proven to be pretty reliable over the last 2.5 years. His being an early model, it had some pulley problems leading to early belt failure, but since that's been sorted out he hasn't had any problems with it. It's a foolproof system that takes a lot of abuse.

Also, I wouldn't say the Honda is necessarily better than the Huasheng. For sure the Honda is a lil quieter, built tighter, but it won't necessarily outlast a Huasheng. My brother has a GXH50, had to rebuild it before he hit 2K miles. There's several people on this forum with over 10,000 miles on their Huashengs. Vote with your wallet, not your emotions.

 

[dimsdale]

Ezm

I baught an EZM and could not be more inpresed! With a small amount of maintance and mods this kit will reach 45mph and up. Engine and trans combo is simply brillant! You will spend more time riding than fiddling with it.
When I first got my bike going there were lots of cheap 2stroke bikes running around town, 8months later there are none around they have all gone the way of the dodo.