not sure if this is the right spot i didn't see a sub forum for motorized bikes so i'm here.

as the title says im looking for a bike to put one of the ebay engine kits on. Ive been eying 29" Men's Genesis Astra Gx7 Bike, Blue - Walmart.com and im wondering if there's anything better out there for around the same price. i like the fact that its rated for 300lb tho i know most bikes are under rated anyway but im 260lb and 6.5ft tall so beefier the better. once you add the engine weight and vibrations makes me feel more "safe" lol

and Ive been eying Manic Mechanic Billet Sprocket Adapter Sprocket for Motorized Bicycle Engine | eBay

I think the traditional approach is to get the cheapest crappiest bike you can find, that's barely safe to ride at 8 mph, slap a motor on it to go 30 mph, discover it sounds like you're riding a chainsaw, then put it on Craigslist like it's the greatest thing since sliced bread.

He said an engine, so I think we're talking at least 150 hp here. This could be exciting!

There's a thread for that sort of thing in the Electric Bikes forum: https://www.bikeforums.net/electric-b...-bicycles.html

well id say your just posting to inflate your post count but your at 11k lol at least your on topic

up your post count elsewhere if you don't wanna contribute be gone

that thread seems dead for awhile but thanks for trying=) guess ill try another forum and see if this thread goes anywhere in a few days

Awfully condescending, especially for a noob. I'd be surprised if people who could help you actually bother to respond now.

I don't want to contribute to there being more engine powered bicycles, so I'll "be gone" now.

Generally, if you'll check the owner's manual/warranty/instructions on any bike, you'll find that they don't recommend motorizing it. So when you start looking for the best bike to motorize, it's kind of a challenge.

You say you're 6.5' tall, which means you won't find very many bikes that'll actually fit you. Something like a Walmart cruiser is going to come in a one-size-fits-some size, and that will fit "average" size people. If you're riding it via pedals, probably won't work so well. If you're not pedaling, maybe it'll work better- it would help to sit on one at a store, though.

Weight ratings on a bicycle are VERY approximate, and how things work out will depend on how many miles you put on it, how many bumps you hit, how many curbs you hop, etc. So it's not like a bike rated for 300 lbs is good for 290 but not for 310. Generally, the wheels on a bike are the weak point, not so much the frames. You'll find discussions in the Clydesdale forum about the best (unmotorized) bikes for heavier people. The speed ratings on the motor may be based on a lighter rider as well, so if it's possible performance would suffer as well.

I think I've seen one person riding a gas-engine bike one time around here. I've probably seen 2 dozen or more on the local Craigslist. So it really does seem like they are way more popular to sell than to operate. Maybe I'm must not in the right place at the right time or something. But the noise does seem to be a drawback, and I don't know if that's really what's behind the issue or not. Anyway, the idea seems to really appeal to people, but the reality seems to be a bit disappointing.

what makes me a noob? the fact i dont know what budget frame would be the best then yes im a noob. 100% of forums have very smart and kind people but they all have trolls and wanna be experts aswell so i just dont care to beat around the bush any more

lol thanks for the laugh your failed attempt to leave with a small dig it was funny to read

yeah my size does have its drawbacks ill check out that sub forum. im lucky my town is rather flat with maybe 3 small hills lol i like to tinker and this sound like a good way to do that. i just wanna be safe of course and like you said in your first post people get rusted craiglist bikes. im not looking for crazy speeds just a fun thing to do and get around at 15mph. when its 110 outside and i dont wanna peddle my other bike in the heat=P

Motorized Bicycle Engine Kit Forum I've built two of them out of Huffy Olympias. The two strokes from eBay are temperamental...it takes some fussing around to get them going good and it takes a little mechanical aptitude to set it up right. Those guys on that forum will help you out.

I don't know anything about adding a motor to a bike, so I won't comment on that. I will say that if the bike is just like the one in the picture it has 48 spoke wheels which would probably make a wonderfully strong wheel for lots of weight (normal is 36, 32, 28 or even down to 16 spokes per wheel). I have a friend who added a gas motor to an old Cannondale mountain bike. Her three comments I remember most are: don't ride it in winter when it's cold - that cold wind blowing on you and your not pedaling to generate body heat will freeze you quickly (but it sounds like you'd use it in summer); with hers she has to make a gas/oil fuel mixture for two stroke engines, and finds that to be a nuisance sometimes; and she has to watch the speed - it will certainly move her and the bike at 30 or more mph, but mountain bikes aren't designed for stability at those speeds. She needs to keep it slow enough to not risk losing control.

What's the deal about "posting for post count"? If you guys are getting paid by the post I'd like to toss my name in the hat. It's Nermal?

It's your best bet. BF is a forum for people who pedal their bikes, if you want more/better discussion about gas-powered scooters, find another site. I'm sure they're out there.

Buy A Moped [ Its Bromfiets in Dutch , they can share the bike paths in many places ) wear a Motorcycle helmet.

You are being called a noob because of you grand total of 4 posts.

I don't think you will find much help here. If you were talking about an ebike adaption, sure you will probably get some people who want to help. If you insist on gasoline, get a moped.

Don't feed the troll!

I once bought a Schwinn Suburban (the vintage model from the 70's not the modern reboot) and the guy I bought it from had at least 20 of them, because he felt they were ideal for motorization for the following reasons.

1) the frame and fork are exceptionally strong (look in C&V, and even though not sought after, most think the old electroforged Schwinns will be among the last signs of humanity if we wipe ourselves out).

2) For certain model years they came equipped with the Shimano Front Freewheel System (FFS) which basically means that even when you stop pedaling the chain and other drive train components keep moving as long as the bike is moving.

I didn't ask how he implemented motor drive on the FFS equipped bikes, but the idea does seem intriguing to me.

Because they are heavy and tank-like, an old Suburban with FFS in most regions will be quite cheap (if you can find one)

I would actually look at a variety of vintage bikes for your needs, but avoid the high priced sought after racing bikes because you don't need an especially light bike for your needs.

I would also consider old "middleweight" bikes like the Schwinn Corvette or Schwinn Jaguar and their cousins (usually the same, or very similar, frames with different components)

Thank you ill look into those

I have a '72 Suburban. It likes to go slow. It takes a good 1/2 mile to stop, though that is my fault because the brake pads need replacing. Even with good pads, I am not sure I would want to take that bike for a fast spin

I would definitely suggest upgrading brakes on any motorization project. In the case of Suburbans (or other similar vintage bikes), I would add Tektro long reach nutted dual pivot brakes (I forget the model number, but they still make them) and wheels with aluminum alloy rims as part of the motorization project. It would have to be checked whether the brakes could reach 700c wheels on the bike, but I suspect it would, and if not, a few 27" wheels are available.

I also would never ride a motorized bicycle faster than I would ride it under my own power on flat ground.

R559 my friend. I completely agree that those electroforged bikes will be humanities last surviving relic ha. I really do like mine. Perfect for going to the pool, or bar down the street.

https://sites.google.com/site/velosolexamerica/

The freewheeling cranks allow you to set up a mid drive. In a mid drive, the motor and large chainring are connected by a chain. This will be your primary reduction gear. You then run a chain from the small ring to the cogs and can shift the rear cogs to get speed or torque. The motor will spin the chainrings only when you want to throttle up, the crank arms won't be spinning wildly because of the freewheel in the chainrings.