The top speed of the V12

[YCC]

The official specifications of the V12 show that the top speed is 70KMH, however, even if the owner of the V12 on this forum replaced the control board or purchased the latest batch of V12, the problem of motor power failure still exists, and the top speed of the riders does not seem to exceed 50KMH.

Do you think the official specifications of the V12 indicate a top speed of 70KMH or just 50KMH? What is the safety speed of the V12?

 

Edited September 29, 2022 by YCC

[Tawpie]

I interpret that as the free-spin speed, not the fastest a rider can go

"if there's no load on the system the tire will go round and round this fast"

 

Edited September 29, 2022 by Tawpie

[YCC]

4 hours ago, Tawpie said:

I interpret that as the free-spin speed, not the fastest a rider can go

Therefore, can I explain that the safest and fastest speed of the V12 will be 70% or 60% of the free spin speed? The safe maximum speed will be 49 km/h or 42 km/h.

Free-spin 70KMH* 70% safe margin= 49 KMH

Free-spin 70KMH* 60% safe margin= 42 KMH

 

[Tawpie]

22 minutes ago, YCC said:

Therefore, can I explain that the safest and fastest speed of the V12 will be 70% or 60% of the free spin speed? The safe maximum speed will be 49 km/h or 42 km/h.

Free-spin 70KMH* 70% safe margin= 49 KMH

Free-spin 70KMH* 60% safe margin= 42 KMH

 

It's really difficult to know for certain what the maximum speed of a wheel+rider will be, so many variables. But I think many people have used an ~80-85% estimate for lower powered wheels and have been pretty close. That's for lower powered wheels.

I have my numbers all muddled up in my head but I think Master's free spin was 114 kph, and at least 1 rider has reached 90 kph... that's about 79%. A Master Pro made it to 100 kph but then cutout… a few broken bones but rider is otherwise reported to be ok enough.

Keep in mind that wheel firmware may restrict the electronics so that the speed is lower than theoretically possible, KS does this but I don't know about IM. People go wicked fast on V12, but the 16" wheel makes it a very very scary experience. It's not that the wheel is speed limited as much as it's just too crazy to try to ride it at super high speeds. It might be able to go faster, but I don't hear of many setting personal speed records on a 16" wheel.

Edited September 29, 2022 by Tawpie

[Begodecrashtestdummy]

Depends on your weight if you weigh as much as chooch or eucgirl it will hit 45 mph or 73 kph .

 

[techyiam]

On 9/29/2022 at 7:16 PM, Dosingpsychedelics said:

Depends on your weight if you weigh as much as chooch or eucgirl it will hit 45 mph or 73 kph .

He was going down a mountain road, so 73 km/h is very doable on a V12 for skilled and experienced riders.

I can at will do 71 km/h on a level, relatively smooth road with no wind on my V12. Aerodynamic tuck helps. 

Going on a shallow sloping road, I can do 73 km/h. I have gone up fairly steep roads at 50+ km/h without much effort.

The latest free spin test speed on my V12 is 103 km/h (the previous spin test speed was 102 km/h).

On my V12, going over 50 km/h is really easy to do. When I am following a colum of cars on a main road, I didn't even know I was traveling at 63 km/h (read off the onboard display) . It seemed slow. Even on bike paths, or wide and open side streets, if there are no traffic of any kind, and nothing to obstruct my view, I will be going 50+ km/h. 

While traveling at over 60km/h, when going over a bigger bump, the wheel can give out a beep.

And that is why I need a faster wheel. On main roads, being able maintain between 60 km/h to 70 km/h is desirable (even when going up hills, or facing head winds, going over bumps). So I need more headroom. 

Oh, braking is excellent.  If it wasn't, there is no way I would be traveling behind cars at 60+ km/h. Mind you, skill and leg strength matter. It takes time to build up.

I have never encountered a cutout yet on my V12.

Edited October 2, 2022 by techyiam