No I’m not. I’m very stable @ 40+. Don’t believe me?
2000 South Colorado Blvd Denver, Co. 80203
You cone ride it any time you want. Until then, please don’t assume one board is like another. Because you would be sadly mistaken.
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I’m coming to stay! 
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What’s up…gees fell asleep for a minute
So fast in fact you can go back to the future
38mph next level shit
…
I have no idea what is happening im just throwing random stuff up on this two year old thread
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How much power would people say that you need for a setup like the original thread? to make a board that goes? 35+ mph.
35mph on flat ground: ~1055w mechanical 35mph on 5% slope: ~1750w mechanical 35mph on 10% slope: ~2440w mechanical 35mph on 31.5% slope: ~5237w mechanical
add roughly somewhere between 100w - 1000w copper loss or so to get the electrical wattage
cool. Now what about if you have 2 180 kv motors.
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you could do pretty close to 35mph up a 31.5% grade (yellow line, bottom left chart, vehicle thrust pounds, 2 motors) assuming:
(2) 180kv motors, 0.05ohm, 83mm tire, 28T wheel, 15T motor, 1.86:1 gearing, 80a motor current limit, 60a battery current limit per motor, 46v battery after sag
Easy way to go 35+? Use 107mm wheels and 12s you will reach that with most gear ratios lol
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@curtis @Battosaii yes, with 107mm tire, you could do 38T wheel 15t motor, 2.53:1 gear for similar results:
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@Wallgreeens has said he can reach 38 mph on his FreeRide. Its a 12s build with 16/36 tooth drive on 90mm wheels. I have a similar build but i have been running 16/ 32 tooth on my drive and I regularly clock in around 43 mph but I am tucking as much as I can. Motors lack a lot of torque when they pass 80% duty cycle so I need to tuck hard to get that last bit of top speed. Both builds are running 200kv motors.
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Not me… topping at 33mph. 16t-40t Acceleration is nuts tho Swapping to 36t on my wheels soon.
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This was a good read as I was curious about the mechanics of things… However… Numbers aside is there any advantage of changing the gearing on the wheel vs motor… Like yeah the ratio can be tuned regardless up or down but does changing it at one location offer any benefits vs the other?
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changing the # teeth on the motor pulley generally has a larger effect on the gear ratio per tooth changed than changing the same # teeth on the wheel pulley.
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Thanks just what I was looking to hear =)
I’m running 20/44 on 12s eith 107s and I hit 35 today with some throttle left.
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Most guys around here wont like this but my board is now running 76mm wheels and it feels way more powerful than when i was spinning massive 90mm wheels. Dont get me started on how much embodied energy us in a 107.
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90mm/76mm=1.18… or about 18% more acceleration
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True but the board handles much better and out accelerates another board we have that has a similar top speed with 90s.
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Some people like the comfort of big wheels and with some crazy set ups today power is not an issue. I hope to get my 6 shooters up to 50mph with my new set up.
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