Technically not a bicycle...
 

My grandfather built this in the 30s or 40s. He machined the 4 cylinder engine in his garage shop. I rode it when I was a kid. It recently came into my possession. Grandpa was the guy that told me, "riding on 2 wheels is like flying on the ground."https://cimg6.ibsrv.net/gimg/bikefor...9328233493.jpg
Non drive side
https://cimg7.ibsrv.net/gimg/bikefor...fcc68d7efe.jpg

Drive side.

That is super cool!
And it appears to be a mixte.

That is freaking AMAZING!

You lucky B*****D. :thumb:

That is really cool. Almost like folk art. Is that a foot operated horn on the left running board?

It is. Also foot operated clutch and hand operated clutch. Rear brake only and a top end around 45 or 50mph.

Very cool indeed! Four cylinder, eh? Wow.

Thanks for posting it. :thumb:

Very small 4 cylinder.

It looks wonderful. Almost cute. Do you know the actual displacement?

Love it! :thumb:

That is too cool! Thanks for posting, I love stuff like this.

Sweet! Where's the throttle?

Any significance to the number 4 on the tank? Forth attempt? Forth success?

Very cool.....does it run? if not are you going to try to get it to run?

i think its under 175 cc

Right hand twist grip.

I think its just because its a 4 cylinder.

Oh that's sick! How is it started, and I can't make out how it drives the rear?

we'll get it going again. The engine is free but it needs very rare plugs and i am very cautious about riding it. I rode in my 20s and it was a gas.

:thumb:, Make it so.

= extremely cool!!!!!

This must be the kind of stuff people did before TV.

You start it by pulling in the clutch, rolling it and letting the clutch out.

The drive system is a v belt. The cover behind the seat hides the transfer pullies. The rear wheel pully is almost the size of the rear rim.

Four cylinder engine, the style of the bike is a direct take-off of the Henderson, Cleveland and Ace (later Indian) 4. The way he did the tank is a copy of those bike's. Beautiful work.

My late father-in-law (late wife's dad) was the kind of guy to do this, too, although the scratch built motors he made were just to be bench mounted and run for the sheer artistry of it.

We always thought it looked like a henderson. The thing with those inline fours was they would fall over on really slick surfaces when torqued. Or so i was told. The millercycle didnt have huge power so it wasnt a big issue.

So, technically, it's a mixte? :thumb:

Had gramps seen an e-bike he might well not even have bothered. Imagine what he would have thought of it?