Good afternoon! You have very beautiful motorcycles, but I found one logical flaw.

Your unarmed motorcycle requires 4 types of research packs
And the plane https://mods.factorio.com/mod/Plopc is only 3 types

But the plane is much stronger and more efficient than an unarmed motorcycle.

Maybe it makes sense to reduce the number of research packages for an unarmed Motorcycle to two types?

Perhaps the plane is too cheap did not correlate the two mods to be fair I'll look at this

This unarmed motorcycle is too expensive because it doesn’t even have a machine gun. In terms of capabilities, it is weaker than a vanilla car.

And for a vanilla car, you only need 2 types of research packages.

After the updates:
- Nice to fix the graphics glitches !
- Impact damage is now survivable, so good, but still quite painful ...

Costs however... eeek !
So, Car cost 117 raw iron to make, and nothing else; This unarmed cycle is 161 iron, 82.5 copper, 5 coal and 100 petroleum gas, for what is essentially an inferior vehicle.
- It carries much less (look at trunk size)
- (still) Large impact damage taking away half of the weird 1000 points life, which is double that of a the car... but not useful since it takes so much damage when hitting something
- Yes it has a grid but that would mean even more investment and tech for something that that can't shoot back.

Research, as mentioned by OP, is just terrible. Why need military research on something that is unarmed ? Chemical research as well is just a punch in the gut. This one should be ONLY Automation research and basically come right after Steel processing, and be very cheap and expandable, as a very early first vehicle. Lose one, run, build another in 5 seconds, get back in the saddle.

I'll come back about the armed version... after you actually play a few games with your creation and you understand how severely imbalanced it is right now.

So I've just made a few changes see what you think, also remember the HP is now optional under mod settings.

Thanks a lot! Now your motorcycles are quite well integrated into the game.

Played with it a bit, even killed some biters with grenades ;-) More feedback:
- Cost seems right now, both science and build cost
- Turn rate is very slow it seems, try the car and see how tight it turns, this one makes a very large circle - Result is it's difficult to drive and avoid obstacles
- Impact damage is acceptable, survives one hit with a rock, but default 1000 HP seems a bit high (twice the car?) This is a motorbike, not a tank
- There seems to be a missing frame or two when pointing upwards, it rotates without the graphics rotating

Other than that, I'll definitely use it in my modded games after the very slow turn rate is adjusted.

As for the rocket one, that remains to be seen. I like the new science location, after the car but before the tank !

So in response to the turn rate, some players are going to want the turn style to be like the tank some not, each to their own, having two different turn styles suits two different turn rates so I guess I need to find a way to change the turn rate depending on what turn style is used.
I'm using the tank turn style and I'm driving though tiny gaps in the trees with ease and I love the control, not tried it so much with the car turn style only to test the option worked.