The big Stark Varg supermoto information topic

Phantom

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Colorado
Now that i see its not limited to any certain speed, the real enemy hear is obviously finding better cooling alternative for the motor/controller etc. Finding a way to front mount a set of radiators from like a traditional IC bike or attatching external heat sinks….something. This Florida heat/humidity just saturates the power system so dang fast! Even if your only doing a mildly spirited ride with 15t/45t gearing.

This gets me thinking. Move the current radiator to the front and then that would free up room for the charger. Has to be obvious to Stark cause there is not many options and I was really surprised by how small the radiator is and where it’s located

I hear the rumors of the next stark being a supermoto but I wouldn’t hold your breath. They did a sale of $2k off which tells me sales are weaker than expected so this means they need to be careful rather than create another model. Hope I’m wrong.

For those having this overheating issue. The first thing I’d try is to increase air flow to the radiator. Seems like if you modify the rear wheel well plastics with some holes or slots, that would make a meaningful difference. Air flow in seems ok but can’t get out.

When I mounted my charger off the rear subframe, it looked like if you removed the radiator, the space left behind could fit the charger. The cable from there to the charging port could get shorter and the incoming power cord could fit in the remaining space.

Front radiator should be doable but front plastics would need to be expanded wider. Maybe twin radiators? One on each side of the frame spine?. Maybe need to buy a spare radiator and pump and give it a try.

I think if it was a little wider in the “tank” area, that would not be a problem for street. Maybe off-road this narrowness is nice. Don’t have much experience there.

Sad to read about the issue others are having cause these bikes are amazing. I’ve had some phone issues but nothing that power cycling didn’t clear.

Curious to see if I have any issues when my street wheels arrive. So far no issues I can tell but the dirt wheels are fun only up to about 60mph on the road. Then the imbalance is just not worth tolerating for long.
 

Erwin P

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Netherlands
They did a 2K sale because the new model was comming, wich is now around the old price. This is pretty much standard in industry.

Supermoto won't be a huge investment though. Design some 17' wheels, some lower and firmer suspension, different handlebar and you could call it a day. The frames and Drivertrain could remain the same.
But since most SM's would be for on the street they really should integrate the charger in there somewhere.
Nicest would be if it was all interchangeable with the EX. Buy some parts and be able to mount the charger on the EX.
 

Johnny Depp

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Austin TX
I think Tesla has a more sophisticated cooling method, channeling coolant through heat sinks that the batteries are mounted on? If the Stark is to be a race bike, pushed to the limits on a road track, the current setup won't get it done. A few band aids like better airflow or repositioning the radiator will likely help some, but it's likely going to end up like an Alta with an overheated battery too often.
Venturi effect - Wikipedia There must be a way to enhance airflow in the current location of the radiator? Holes in the side panels?
 
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