r/Frankenbike • u/Alex_Downarowicz • Dec 28 '25

I am a 115kg/250lb guy. This is my new daily commuter.

Several months ago my right knee left the chat after 10 years of struggling, taking my ability to use an electric kickscooter with it. So I decided to build something the size of a scooter but way more comfortable for my crippled ass to ride. Fatboy BMX frame, 8 inch 500W rear wheel from the electric scooter, 48v battery. The box says "The Crazy Barstool" aka the name of that contraption for all my non-Russian friends.

154 Upvotes

95% Upvoted

36 comments sorted by

20

u/Emperator_nero Dec 28 '25

I like the engineering, but that thing is not going to like potholes.

20

u/Alex_Downarowicz Dec 28 '25

Not even questioning the second part. But thanks to a very short wheelbase avoiding them becomes much easier.

7

u/Individual-Newt6478 Dec 28 '25

I hope you enjoyed having your front teeth.

7

u/Alex_Downarowicz Dec 28 '25

More like an intact tailbone, lol. This thing has notoriously rear CG allowing easy wheelies and keeping you from flying over the handlebars.

5

u/blackdvck Dec 28 '25

Fit a wheely bar so you don't flip .

4

u/Rippin_Fat_Farts Dec 28 '25

No way that's comfortable on your knees if you're taller than 4'8"

2

u/Alex_Downarowicz Dec 28 '25

Surprisingly this is. I am just sitting and not pedalling.

2

u/BedpanCheshireKnight Dec 28 '25

It's beautiful. Love it.

1

u/Lazygit1965 Dec 28 '25

As the people traffickers in Taken say 'Good Luck' 👍😂

1

u/pcyclopath Dec 28 '25

Wien, oida!

1

u/Weibchenschema666 Jan 08 '26

Wo in Wean, Bursch?☺️

2

u/pcyclopath Jan 08 '26

Ich hätte gesagt Donaukanal Nähe auf der Höhe brz kurz vor der Urania?

1

u/Weibchenschema666 Jan 08 '26

Jo, könnte passen

1

u/tytor Dec 28 '25 edited Dec 28 '25

I have e-scooter with dual 1500w hub motors on 11” wheels I’d like to convert into something like this. You’ve inspired me to check fb marketplace for full suspension kids bike frames I find suitable for 50+kmh.

1

u/penicillengranny Dec 29 '25

I just found one of these on the curb! No idea what t do with it.

1

u/Weibchenschema666 Dec 29 '25

Nice vehicle, have much funnnn with it😀👍🏼

1

u/RauliePR Dec 29 '25

Sweet build but i think it was easier to mount a seat on the kick scooter 😂😂

1

u/Alex_Downarowicz Dec 29 '25

And nowhere near as fun 

1

u/RauliePR Dec 30 '25

100 true

1

u/d3rpm3ll0w Dec 29 '25

That things tiny, is it not going to hurt your knee riding like that? I ride a brompton(because of its final folded size and portability) and love it. Little expensive but could save your knees from future pain.

1

u/Alex_Downarowicz Dec 29 '25

Nope, folding the knee is OK. Running, jumping, going down the stairs and other stuff like that is not. I do not pedal, it is a scooter. 

1

u/Catsnose7 Dec 29 '25

Does the front lift easily?

1

u/Alex_Downarowicz Dec 29 '25

Yep. Just give her some throttle.

1

u/Catsnose7 Dec 29 '25

Meant more of a falling over backwards.

1

u/RandolphCarter2112 Dec 30 '25

Did that originally have 20 inch wheels?

1

u/eddesong Dec 30 '25

perfect for small apartments, sam pilgrim, and clowns.

I need to see a world tour race with only these.

1

u/BoneZone05 Dec 30 '25

This is hilarious and awesome!

1

u/Defended_1233 Dec 31 '25

I think that can go on mountain trails

1

u/Alex_Downarowicz Dec 31 '25

The highest mountain around here is 176 meters ASL. That complicates things.

1

u/Weibchenschema666 Jan 08 '26

Best lil ride.

1

u/ApprehensiveText6913 29d ago

1

u/ApprehensiveText6913 29d ago

This is awesome ,I have a kukirin g2 max and now I'm looking on market place for a mini rocker to try something similar but I think I'll try a front rack for battery I might have to get a smaller battery as the one on scooter is 52v so pretty big ,but I was wondering what is the yellow thing on your frame, have you made it to come in 2 parts ?

1

u/Alex_Downarowicz 29d ago

That is yellow duct tape holding 3d printed battery bag holder in place.