Recent content by Johnny Depp

Ducati and Honda are running "frame wings" .

That's cool that someone is beginning to make these available. The fitment will depend on each model bike's shape of the plastic side panels. I like the idea of longer, but not sure it's needed and may make fitment more difficult? My experiment was quite crude, and I changed the location several...

8 Snell and DOT helmetsboth use drop tests with instrumented headforms onto anvils, but Snellstandards are significantly stricter, requiring lower peak G-forces (around 275G vs. DOT's 400G limit) and testing multiple impact types (flat, hemispherical, etc.) and conditions (hot, cold, wet)...

I wouldn’t recommend a Snell or DOT approved helmet. They are over engineered for dirt bikes.

Engineering helmets to keep street riders alive in high speed crashes into solid pointed objects is the wrong direction for the majority of accidents that happen in motorcycles. The testing is flawed, because it is designed around the wrong regulations. In trying to save lives, preventable...

Football and motocross have very similar head injury concussion issues, and following them is a good thing, just like 6d. Snell and almost all testing standards are set too high, a high speed pointed object is a remote possibility to engineer towards.

Motorcycle helmets in general are obsolete. Football helmets now routinely have several flex sections built into absorb energy, and the foam is multi hit capable. Bike helmets are one and done. That being said, my current helmet of choice is a highly ventilated mountain bike helmet with Mips...

I'm completely confused by all this. Is their a summary that applies to the Stark in real life, not theory?

You lost me on the field weakening? IMO high revs and wheelspin are the biggest culprits of excess battery drain, taller gearing eliminates those to some degree. It's not something that will show on paper.

This could be a similar description, the bike isn't staying on top of the whoops? I'm a little confused by virtual flywheel, I assume you mean the ability to hold a steady power setting? Could you describe further? It seems like the best technique for any bike it to let the front end skim and...

1.27 faster on the Stark, and thought he could bring a few more seconds with more practice.

translated: "I did some research and indeed at high RPMs the efficiency of permanent magnet electric motors is lower. I'll also try a 15/42 ratio".

If 2000 RPM is optimal, that is exactly what taller gearing will help you stay closer to. Even if it’s not more range inducing, it definitely helps the right ability and pulls longer, power wheelies are much different. Only cost $100 for anybody to try.

https://www.vitalmx.com/features/direct-line-podcast-seb-tortelli-stark Not to tell Stark their business, but the 15/42 I'm running eliminates this problem and extends the torque range. ICE bikes typically grab a tall gear in the whoops so that they don't have to shift and run out of gear. You...

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