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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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  #11  
Old 09-26-2016, 06:40 AM
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Agreen Agreen is offline
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Default Re: Pedal-less acceleration?

Hybrid sounds like what you want. Gas rear wheel drive, electric front wheel drive. If all you use it for is take-off assist, you don't need a massive battery.
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  #12  
Old 12-19-2016, 05:21 PM
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ultralight01 ultralight01 is offline
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Default Re: Pedal-less acceleration?

Hybrid is cool but heavy.
Try a predator 79 or 212.

EDIT:, Sorry, accidental reawakening of a dead thread.

Last edited by ultralight01; 12-19-2016 at 05:27 PM.
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  #13  
Old 12-20-2016, 07:16 PM
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Default Re: Pedal-less acceleration?

Put on an expansion pipe with a long header so you get more low end.
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  #14  
Old 12-22-2016, 11:40 AM
KCvale KCvale is offline
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Default Re: Pedal-less acceleration?

Quote:
Originally Posted by motorizedinDC View Post
My motorized bicycle has a 49 cc on a huffy bike. It's pretty heavy :-0
Is this a 2-stroke or a 4-stroke?
48cc and 66cc is typically 2-stroke, 49cc and 53cc are typical HS 4-stroke engine sizes.



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  #15  
Old 12-23-2016, 05:40 PM
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Default Re: Pedal-less acceleration?

I'm with Mongo.
I have a 49cc two stroke. With very little work it will pull away from a dead stop and do hills.
1) Use a 54 tooth back sprocket
2) improve the head by adding a bit of squish and compression.
3) bring the new-found squish to 0.5mm to 1.0mm by adjusting head and base gaskets
4) drill the exhaust flange and gasket with a 3/4" (19mm) drill
5) jet the main by plug chops and the needle by performance.
6) widening the top of the exhaust port will help too, but don't raise it.
7) a longer intake tract or filter will help too

Even the 49c will pull away with these mods done right.

Steve
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  #16  
Old 12-23-2016, 07:15 PM
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Default Re: Pedal-less acceleration?

I guess this is directed at the China girl bikes..I know my whizzers don't need help , but one of them is pullied smaller on the clutch to wheel helping that one. The stock wc1 though, hardly struggles if you use its manual clutch right.
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  #17  
Old 12-24-2016, 09:53 AM
KCvale KCvale is offline
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Default Re: Pedal-less acceleration?

Quote:
Originally Posted by sbest View Post
I have a 49cc two stroke.
Steve
Hey Steve, where did you get your 49cc 2-stroke?
Every one I have worked with is 48cc.
The thing is, 49cc is a valid size for 4-stroke but not for a 2stroke and why I asked if he had a 2 or 4 stroke.

I'd just like to know who is faking the 48cc number and folks like you buying the 1cc claim is all.
It's not as bad as the 66/80cc scam, but enough to be annoying in topics like this.
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  #18  
Old 12-26-2016, 03:50 PM
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LandSpeedRecord LandSpeedRecord is offline
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Default Re: Pedal-less acceleration?

A properly ported and set up 66cc will pull you strong right off the line and up to about 43mph with the stock 44 tooth kit sprocket. If you want more, a real expansion chamber, higher flow air filter, better plug wire & booth, and really seal up the carb, intake, etc from all the tiny vaccuum leaks. If you get it right you will blow by shift kits and keep going. They very much have thier place in high end comfortable to ride at a much lower cruising RPM builds but for performance, simplicity, and dollars you won't get close to a high quality 66cc. I have countless hours with the best kits SBP offers and I love them and even use their 4 stroke mount in non shifting builds.
The short answer, if you want to pull off the line and reach any reasonable speed a 66cc kit from DAX, CRmachine, me, whoever will build you a proper one will outperform anything else short of spending a ton of money.
If you have the money to drop a 53cc shifter bike by KC will pull you right off the line I bet real well AND be the nicest to ride but you have to drop the dollars.
The best thing I have found with the 48cc bikes is they are already motorized so it's quick and easy to yank the 48 out and drop the bigger motor in lol.
All just my opinion.
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  #19  
Old 12-26-2016, 11:44 PM
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Default Re: Pedal-less acceleration?

Quote:
Originally Posted by KCvale View Post
Hey Steve, where did you get your 49cc 2-stroke?
Every one I have worked with is 48cc.
The thing is, 49cc is a valid size for 4-stroke but not for a 2stroke and why I asked if he had a 2 or 4 stroke.

I'd just like to know who is faking the 48cc number and folks like you buying the 1cc claim is all.
It's not as bad as the 66/80cc scam, but enough to be annoying in topics like this.
Yeah, yeah, yeah, I'm busted...
THOUSANDS of numbers floating around in my head and I messed up.
And you are right KC, it is important.
I mean, who would drive a 352 Chevy? or a 288 Ford?
I humbly submit to public flogging... <SHAME>

Steve
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  #20  
Old 12-27-2016, 09:40 PM
KCvale KCvale is offline
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Default Re: Pedal-less acceleration?

Quote:
Originally Posted by sbest View Post
Yeah, yeah, yeah, I'm busted...
THOUSANDS of numbers floating around in my head and I messed up.
And you are right KC, it is important.
I mean, who would drive a 352 Chevy? or a 288 Ford?
I humbly submit to public flogging... <SHAME>

Steve
Hehehe Steve, I just thought maybe there was something new I didn't know about is all ;-}



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