Motorized Bike?

[CaptCanadia]

Hey guys I hope this is the right area to post because I've never posted here. I want to buy an 80cc bike kit and I don't know what exactly to get. I've been ebay surfing and all the 80cc kits I find are 200 bucks. Is this a good price? Are there any particular things I should keep in mind? If you know anything I should know before buying a kit let me know. Thanks for the help.

EDIT: The reason I'm getting it is because I want something to ride to school. I live in the high desert and there are hills everywhere. Waking up in the morning and working hard to pedal isn't my ideal morning. So that being said the purpose is to get me 3-4 miles to school and back. I'd also like to have it so I can drive around for fun and have it go 25-30 MPH.

 

[Bluethunder3320]

i seen some of those kits for $120-130 on ebay.

 

[CaptCanadia]

An 80cc version? I'm okay with 60cc that's still more then enough.

 

[r97]

look at the motoredbikes.com forum. get a good kit, I bought a 50cc kit from thatsdax.com for $150 which i put on a mini-mini bike, its a decent engine, nothing major yet, just lots of little problems that pop up, but I hope to get them all sorted out soon (that's why i suggest you get a good kit, from my understanding, cheep kits will have even more problems, and some don't have crank case bearings, or other very good features) FYI the 80cc engines aren't 80cc, they are actually 66cc

I think the engine should be able to do what you want, my bike is geared very low, about 13mph tops, but it goes up hills at or just above idle!

the engine looks good, works good, has a manual clutch (more fun), and is pretty powerful (2-stroke). my only complaints would be that, like all chines engines, it is lacking in quality, and a few little problems, but there isn't anything else available like it, and it fits its purpose of light use and looking good well. maybe some day i can find a nice old moped, or motorcycle engine to replace it.

EDIT: i'm sure you could crank that thing up to 25-30 and still get up some good hills.

 

[CaptCanadia]

look at the motoredbikes.com forum. get a good kit, I bought a 50cc kit from thatsdax.com for $150 which i put on a mini-mini bike, its a decent engine, nothing major yet, just lots of little problems that pop up, but I hope to get them all sorted out soon (that's why i suggest you get a good kit, from my understanding, cheep kits will have even more problems, and some don't have crank case bearings, or other very good features) FYI the 80cc engines aren't 80cc, they are actually 66cc

I think the engine should be able to do what you want, my bike is geared very low, about 13mph tops, but it goes up hills at or just above idle!

the engine looks good, works good, has a manual clutch (more fun), and is pretty powerful (2-stroke). my only complaints would be that, like all chines engines, it is lacking in quality, and a few little problems, but there isn't anything else available like it, and it fits its purpose of light use and looking good well. maybe some day i can find a nice old moped, or motorcycle engine to replace it.

EDIT: i'm sure you could crank that thing up to 25-30 and still get up some good hills.

Sweet thanks for the info. And 66cc? Jee what happened there false ad? Anyways in that case I'll be more then happy to spend 200 dollars since I need this thing to be dependable. Oh, one more thing. With the engine in it will it still be considered a bike or am I at risk of getting a nice $300 fine? I live in california.

 

[r97]

make sure you get a california certified version, check the motoredbikes.com forum for the local laws, should be discussions of people in California. that forum has some very good stickies for noobs too!

 

[CaptCanadia]

Alright thanks a lot man I'm off to do some research!

 

[CaptCanadia]

****, that was a pain to register. I'm so glad DIYGK doesn't have that no spam registration crap or I wouldn't be here

they also have to approve my posts! What a pain in the butt!!

 

[oldbikerarlo]

I'm close to 300 lbs. and This one would run 28.5 mph on flat ground, and down to around 17-19 mph on a hill. this one is 50cc I made some custom things like air cleaner, pipe clamp, and gearcase cover. so it looks a little differant. but it is all stock inside. I used to take it on a 10 mile ride, a couple times a week. I'll look up the link and get back to you.

 

[CaptCanadia]

thanks for the pic. Is that exhaust clear of the pedals? I hear some people have to super heat the pipe and bend it so the pedals can move freely.

 

[ipwnr]

http://www.ebay.com/itm/80CC-MOTOR-...ultDomain_2&hash=item2a13859345#ht_4555wt_994 they will all say that they are 80cc but they are all truly 66cc and if you don't mind spending another hundred bucks you can get the shifter kit http://www.sickbikeparts.com/catalog/index.php?cPath=21&osCsid=l5tkt8qbsitsna7cn8qbng5cf3 to let you use the original gears.

 

[oldbikerarlo]

Check this guy out he has a quality engine set up cost a little more but worth it.
http://www.simpsonmotorbikes.com/images/9.gif

 

[CaptCanadia]

Look what I found

"the disclosure of accurate engine size to the consumer. While we have chosen to use the long standing factory branding of the "80cc" name, the true displacement of the bicycle engine is actually 66cc or 68.5cc ( because the +- error). The debate has been open for a long time in our motorized bicycle community as to what the correct engine size is and we hope to provide the answer. The volume of a cylinder is calculated by using the formula Volume = Pi x Radius squared x Stroke (multiply 3.142 x radius of bore squared x stroke length divided by 1000). In the East, the displacement of an engine includes the area of the cylinder head's combustion chamber as well as the volume of the cylinder. In the US however, the volume of the cylinder is only considered when identifying engine displacement. With a 47mm bore X 38mm stroke this equals a displacement of 66cc or 68.5cc,
This engine is one of the biggest bicycle engines on the market and is the same as the so called 80cc."

 

[CaptCanadia]

I think this is what I want. what do you guys think?

http://www.ebay.com/itm/50CC-GAS-MO...ltDomain_0&hash=item35b4d535b9#ht_5340wt_1392

 

[oldbikerarlo]

thanks for the pic. Is that exhaust clear of the pedals? I hear some people have to super heat the pipe and bend it so the pedals can move freely.

If installed corectly the peddles clear the pipe, if you opt for the pull starter you will need the wide peddle set. This is the first one I built, Wal-Mart Huffy cruiser, Oh an make sure you fasten the muffler so it does not shake it will steatch the cyclinder bolts and blow the head gasket.

 

[CaptCanadia]

If installed corectly the peddles clear the pipe, if you opt for the pull starter you will need the wide peddle set. This is the first one I built, Wal-Mart Huffy cruiser, Oh an make sure you fasten the muffler so it does not shake it will steatch the cyclinder bolts and blow the head gasket.

Yeah I don't even have a bike with the v shape. I'll have to go garage sale shopping and fine a nice cheap one.

EDIT: You did a nice job on that it looks really good.

 

[oldbikerarlo]

$ 165 with free shipping is a good deal

 

[oldbikerarlo]

Yeah I don't even have a bike with the v shape. I'll have to go garage sale shopping and fine a nice cheap one.

EDIT: You did a nice job on that it looks really good.

Thanks after the first one, I just used yard sale bikes, and put new tires, cables and brake pads on. Let me just say this, you might think 30 mph is slow, but you get on top of a thin frame add those narrow tires, 30 mph is haulin azz. you need good brakes

 

[CaptCanadia]

Oh ya I know what your talking about. I rode my friends small racing bike and I got it up to 25. At that point it was just scary

 

[mini chopper]

check out http://motorbicycling.com/
they have tons of good info on these kits, performance parts, and good info to a long lasting engine life. i used to spend a lot of time here before i came here and left the motorized bike kit scene, couple years ago, the kits were selling for 100 bucks with free shipping.