100cc Boxer Twin Cylinder Engine - it only needs is a jackshaft

Hi Tanaka40

You are very close to the mark.
I've weighed the trailer and it come in at 25 kilos (unloaded) and i've carried two 20 litre Jerry Cans which would weigh around 40 kilos + the tool kit which weighs 10 kilos and the spare tyre.

I've realised i'm carrying more weight than i've assumed - 75 kilos (165 lbs).
No wonder the bike was working it's guts out (4 M/ph or 7 K/ph) in low range crawler gear up some of the hills i've got to travel.
One of the hills (more like a mountain climb) is a 25 minute ride in low range crawler 1st gear - that's a long time to be doing 4 miles an hour with the engine revving it's guts out with little or no airflow over the cooling fins.

Fabian
 
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.....Reality dictates that neither the 120cc engine or the 100cc boxer engine will be made available for motorised bicycle engine kits.
In saying, i'll just have to put up with an under powered 66cc 2-stroke engine.

Fabian

Well, you don't have to put up with a generic clamp on engine if you don't want to. You need to muster up some Cuban ingenuity and make yourself a bike that is quiet and reliable. I don't rely on my bike as daily transportation so the generic Chinese engine has been good for me. Around 500 miles so far and it starts with the pop of the clutch every time. Just needed a little TLC on installation and some carb tuning to get it perfect. My longest round trip was 40 miles. Got a little scared wondering what I would do if I got a flat tire.

I don't see how a frame mounted 4 stroke would be much different than a two stroke clamp on engine as far as law enforcement is concerned since anything with an engine is pretty much illegal where you live.

Rack mounts can be hidden with luggage too.

Professor made a gas-electric hybrid to satisfy his e-bike laws!

Yes we can!
 
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Gh0st, i'm glad you run up a few miles on your motored bike knocking up 40 miles in a trip.

My travels take me a bit further and the longest single return trip i've done in a day was 90 miles.
My general weekly trip distance works out to be around 180 miles and so far i've travelled a total of 3300 miles (5500 kilometers), although i'm on my 4th engine (and the 4th engine has been rebuilt with a new crankshaft, so maybe you could call it 5 engines) and worn my way through numerous drive chains and a cassette and rear derailleur. The only original item from the motored conversion is the SickBikeparts Shift Kit (although it's on a second set of chainwheels and Jackshaft output sprocket which is to be expected for the distance travelled and the loads that are towed).

You can probably see why i carry 10 kilos (22 lbs) of tools in the trailer + spare parts and common consumables like tyres, tubes and drive chains.
If the bike suffers a technicial failure, 40 miles from home, there is only one option - rebuild the bike on the side of the road.
Surprisingly the whole mechanical system (SickBikeParts Shift Kit, 2-stroke engine and original bicycle drivetrain) have proven themselves to be far more reliable than they should be on first appearance.
Typically the 9 speed bicycle chain (Shimano) and (SRAM) last between 600 and 900 miles depending on my attention to lubrication and they don't fail mechanically, but wear past the 0.5% stretch limit.
I've had a badly bent and twisted Shimano chain last 600 miles before snapping in half at the outer link, though it would be expected after being twisted back into shape; suffering serious metal fatigue.

Fabian
 
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have you tried the gebe kit... a tanaka with #11 gear should realistically solve all of your problems.

-you dont use the bottom bracket, derailleur, or chain.... because of the ring that snaps on your spokes. so wear/maintenance is at a minimum

-you can pedal to add auxiliary power when needed.

-the #11 gear and tanaka engine should offer all the torque you need to pull your load.

-the tanaka engine and Kevlar belt drive should be plenty durable for thousands of miles.

-you can hide it with racks and luggage.

-displacement isnt too far from the ht engine and it should be much more emission compliant.
 
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Actually, these Happy Time China engines were originally made for...tillers!

Hawaii Ed told me so!:geek:

I have a hard time believing that. Is there a bicycle shaped tiller out there I don't know about??? The clamps are awfully convenient if not made for a bicycle...
 
Ahh, of course vtec, a Tanaka with an #11 tooth gear.

Great idea, but what happens when i'm going down hill and want to change through the next 8 gears?

Fabian
 
Ahh, of course vtec, a Tanaka with an #11 tooth gear.

Great idea, but what happens when i'm going down hill and want to change through the next 8 gears?

Fabian

why are you flying down hills in 8th gear with a full 165 lb load behind you???

Are you just stupid... or did I miss something???
 
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