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The stock MX rear spring is 62 N/mm, right? It is too soft for motocross. Here are the springs that I used on the MX. https://electricdirtriders.com/threads/re-springing-a-2017-alta-redshift-mx-and-then-revalving-too.8/ Also, @Mark911 found a way to install a KTM linkage on the MX. This...

If I knew the weight of the front end, then knowing the front end spring rate would be very meaningful to me. The weight of the rear end does not correlate to spring rates as well. This is because the motion ratio is not 1:1, and it is not even linear.

Yes, in my semi-professional opinion, it is a very good idea. Although, this is hoping that the Varg's default spring rates and the front/rear balance will be perfect for motocross, which was not the case with the last two new bikes that I bought from KTM and Yamaha, both of which had too soft...

If it is the exact same charger, would we be able to use our Alta chargers with the Varg? Is this Elcon charger smart and capable enough to generate a higher ~400VDC charging voltage for the Varg's battery… if the bike asks for it... politely? @TCMB371 @fsfs

:ROFLMAO::ROFLMAO::ROFLMAO: I would love to read what the dinosaur lovers at VitalMX and TT are going to say about this racing format. Having to buy two $15K electric bikes and all.

I wonder if the manufacturers will make really big batteries or shorten the motos in MXGP and the US Nationals to allow their top riders to finish the motos. It is unlikely they will go for charging pit stops or battery swap stops.

You can turn in when following someone into a turn, pivot and cut under, and exit the turn faster than any ICE bike. I felt that I would have benefited from a 450cc Yamaha stability at Glen Helen. When a high-speed track gets choppy, you do not want to be on a flickable and maneuverable bike.

Yes. Trail riding and hill/rock climbing on an electric vs. ICE motorcycle is like Zen meditation vs. cross-fit.

Thank you for the info and the pics. I have not tinkered with my charger yet.

I want to hang my fast charger on the wall inside my motovan. Do I need to cut anything open to get rid of its Pelican case?

That's fair. A 15% efficiency is probably a better estimate for a dirt bike engine. So, maybe it is closer to 1 gallon of gas = a 6 kWh battery.

There hasn't been any significant battery tech breakthrough since the Alta came out. Someone on this forum has calculated that the 5.8 kWh battery capacity of the Alta powering an electric motor is equivalent to about 1/2 of a gallon of gas powering an ICE bike. I think this is true. Let's...

I am afraid there will be low interest among the OEMs to make competitive electric dirt bikes if they are put in a "support class" and are not allowed to compete at the top level.

I like 2-strokes and I like ICE bikes. I do not want them to go away and stop racing, but in all likelihood this is what is going to happen sooner or later.

What's the solution? I think it is pretty simple. We need a dirt bike with multiple hot-swappable liquid-cooled battery modules. Install a 2 kWh module to win a 5-minute supercross LCQ. Or install 12 kWh of modules to ride in the woods all day long. Or install 6 kWh of modules and stop in the...

A light bulb went off as I was at Glen Helen riding @DonCox"s DIY converted Yamaha and then loading it into my motovan. His bike is lighter than a 250cc 2-stroke! It has a smaller battery and a lower top power than my Alta, but it is also much lighter! It is a very fun bike and it fits Don and...

The Stark Varg is not out yet, but I think I have come up with an idea for a better bike. Who is it going to be who will make a Varg beater? Read on... You know what the major limitation of an ICE bike is (besides the noise and the maintenance requirements)? It's its hardware. The weight and...

The Stark Varg is not out yet, but I think I have come up with an idea for a better bike. Who is it going to be who will make a better bike? A Varg beater. Read on... You know what the major limitation of an ICE bike is (besides the noise and the maintenance requirements)? It's its hardware...

Remember how the 4-strokes were first arbitrarily limited to 426cc? Then they were granted 24cc more. Then the 4-strokes became too dominant. Then the 2-strokes were virtually banned. That's the way the electrics are going to displace the 4-strokes.