MOPED ARMY

I feel you. I was very tempted by the gpr50 crate engines they had at '77 for a while. I ended up deciding to go with the dual CVT Hobbit for 3 reasons:

1) I'm building rear sets for a motorcycle right now, and building out linkages and a foot brake setup is just so fucking annoying

2) My wife rides a stupid fast moped, and I'd like to have something in the same range as that. It's just plain fun racing moped, and if I ended up going with a 6-speed it would take away a lot of that fun

3) Dual-variated vs single-variated or non-variated is just so much better. Seattle has giant hills everywhere and I love being able to climb them on my Hobbit with no trouble.

HOWEVER, one thing I love about this build is that at any point if I decide I'm annoyed with the process of making the Hobbit engine work I can always grab something else. As long as it's less than 1'2" long it'll fit in the frame.

Yea this wasn’t my idea

Ahhh good to know! Let me play with the design. Probably just steeper uprights at the back to give more room to angle

https://www.ebay.com/i/254451881931?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=254451881931&targetid=858524558113&device=m&mktype=pla&googleloc=9001818&poi=&campaignid=6470396611&mkgroupid=89246445336&rlsatarget=pla-858524558113&abcId=1139336&merchantid=6296724&gclid=EAIaIQobChMIi4GT_Le-5wIVZ_7jBx3J6QZpEAQYASABEgKR3PD_BwE

I wonder if the back half of a scooter engine would work.

Yes to both!!

Updated design! Thoughts?

Haven't figured out the tank dimensions exactly yet. I figure once the frame is set, I'll get the engine set 100%, and then after that it's tank and seat

That's a bad way to go.

Think about stance now, and adjust the frame accordingly. A poorly designed setup can make a bike a chore to ride.

Today I changed a bike from one that sucked to ride to a fantastic feel, all by lowering the seat and moving it forward about 4 inches.

Don't build a frame that isn't thought out from the get go

Shoot okay that's a really good point.

Top of frame is 27". This allows me to go anywhere between a 28" seat height and a 30" seat height. 30" seat height is the seat height of a CB175, which I found to be incredibly comfortable.

Distance from bars to seat is approximately 29". I have no clue if that's super long or not.

The main benefit of doing the sprocket on the stock hub is it makes the bearing support on the brake plate work. If you put the spinny bits outside of the brake plate/bearing housing you might have more issues than the engine just sitting a bit to the side. I would focus mostly on the final drive chain line then mount the engine in the frame after. As for the belt, on dual variated setups a little bit of loose belt isn’t that big of a deal, but it is a bit of a low end killer if it’s too loose. Starting can also be a pain if the belt won’t grip. I would say an inch of adjustment should be plenty, I don’t think it’s possible to nail the belt length down before you get it together.

Oh and hi Collin!!! (edited)

But yeah, it's all a choice.

A bike that looks like what you're planning is meant for very hunched over riding position, which will be cool to see, but not so cool to do.

Unless maybe you have long giraffe arms

And you also have to crane your neck way back to see the road on a bike like this. On pinball run my back and neck muscles were burning from laying on my long tank to get out of the wind, but lifting my head to see the fucking road sucked lol (edited)

Hey! What up Daniel!

I agree about figuring out the last bits of engine mounting once the rest of the frame is together.

For the hub I was thinking of actually skipping using it altogether, but when I come by next week (front end comes in Thursday!) I'll bring the wheels and show you what I'm thinking.

Some perspective.

This is 22in to the center of bars

But only 15in to the center of grips.

It's awesome to ride but on turns I push the knee way out and fall into the turn. Works great just takes time to get used to.

I tried a mostly straight bars on this and wanted to die.

The pullback bars are basically parallel with the tank, it saved this build, liked it so much I did a tube frame moby style build like it. It's super unusual but it works for me

Snordly es mi papi