JoKo

Sorry I just realized voting ends today. Voting is already closed. @Jim or @Milan Is it still possible to vote today? I mean if it is mandatory for participating members to vote...

Honda RS 750 - Motorcycle & Engine Motorcycle: Steering & suspension V2 engine Engine: Educative model 45° V-twin, 90°crankshaft offset chain driven SOHC (single over head camshaft) 4 valves per cylinder 3 speed + neutral gearbox Motorized with PF M motor & Buwizz 2.0 https://www.eurobricks.com/forum/forums/topic/212280-tc30-motorcycle-engine/

Well done! And the tail rotor "actually" counteract the main rotor torque. Nice detail

The narrow tires this size are solid rubber, I think it won't help! The smaller scale seems the only option.

I don't have smaller than PF M and I think it would be too slow with a less powerful motor

Thank you! The motor is in the base of the prototype and probably stay here in the final model Thanks! I kept the tires weight low

I love motorcycles and my fist technic set was the 8838 motorcycle back in 1991. And today... The idea is to build a mid-size motorcycle (75mm wheels) based on a real one, and build a detailed model of it's engine. Motorcycles like the "small" Ducati and Kawasaki h2r are ~400g so I need do do something simpler. Ideally a motorcycle without heavy fairing, with an interesting engine (with a valvetrain). My choice is the HONDA RS750, a racing flat track motorcycle from the 80's. Flat track (or dirt track in Europe) is racing on an oval track made of smooth dirt. This sport is mostly popular in the USA but I was lucky enough to give it a try in a small swiss event. Definitely one of the most thrilling experience I had on two wheels! The bike: The wheels used on flat track motorcycles are bigger than the standard road bike wheels. That helps me keeping the scale small (~1:7). Because of this scale I won't be able to fit a gearbox in it. Features: Front /rear suspension Chain driven V-twin fake engine steering obviously curent state: 275g. Fake engine: The scale will be around 1:3 or 1:3.5 with a 3 studs bore and 2 studs stroke. I gathered technical informations about the engine developed for this motorcycle and there are the points that I want to replicate: 45° V-twin 90° offset crankshaft chain driven SOHC (single over head camshaft) 4 valves per cylinder I found a forgotten prototype for a "similar" fake engine and modified it to serve as a proof of concept and weight approximation. it only fits the SOHC aspect but that's a starting point. I'm thinking about making it motorized with buwizz 2.0. It's around 310g if I count for the buwizz. That's it for now. Curious about flat-track? https://youtu.be/cy4koDhiAB0?si=JkBe84C3bZUSbpdJ Curious about the Honda RS 750? https://youtu.be/jWpLIp6HD34?si=lbb3_tUdbqYPVmXC

You don't have to quit the gymnast project because of the rules! It only need to be below 300g and the bench press can be the second model.

I don't see any required interaction in the rules. I would say it can make your entry more interesting but it's optional. Also I think that many pair of MOCs about the same size in the same theme can "be played together". Like two cars race each other, two machines work on the same construction site or on the same farm...

@Jim So what are we doing about this rules? we can say more clearly: Two different MOCs like two lego sets thematically related. Each must have functions separately. About the gymnast and base it would fit if each have at least one function on its own. They could also be half an entry. Sorry @bruh That's a cool idea, I hope you get my point.

I think it was clearly said in the rules with the car and trailer exemple. If that is accepted it would be hard to deny anything else in the future...I mean the contest just started and that's the first shared idea. On another hand the base and gymnast together could be a 300g MOC

If that exist that's already explicitly banned if I can read. What I mean is a little buwizz RC car seems possible within 300g and I don't know if that's the kind of MOC you are expecting

We could even ban electronics because non-lego seems the only possible way.

That's a well balanced theme. Simple but interesting, thanks! Now my kitchen scale probably left the kitchen for a month

Yes! I treated myself to a buwizz 2.0 and two motors. This is my first MOC with it. And yes! Not quite finished in time for today but most of the job is done. Instructions and better video soon!