Rune 75
Scoot Enthusiast
Posts: 441
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Post by Rune 75 on Jul 2, 2017 16:45:17 GMT -5
Some years ago a member on the forum posted a list with information about how many hp was required to reach different speeds on a two wheeler. Can't seem to find it now. Anyone know about this list or maby a similar list ?
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Post by 90GTVert on Jul 3, 2017 9:35:11 GMT -5
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Rune 75
Scoot Enthusiast
Posts: 441
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Post by Rune 75 on Jul 3, 2017 17:55:59 GMT -5
Thanks
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Rune 75
Scoot Enthusiast
Posts: 441
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Post by Rune 75 on Jul 4, 2017 14:56:15 GMT -5
BTW found the list:
30mph 1.64hk
40mph 3.52hk
45mph 4.82hk
50mph 6.47hk
60mph 10.94hk
65mph 13.76hk
70mph 17.05hk
75mph 20.82hk
80mph 25.05hk
90mph 35.41hk
100mph 48.23hk
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Post by dan50 on Jul 4, 2017 18:26:46 GMT -5
According to that list 45 to 50mph is doable with a 47mm BBK, but 60mph needs a 50mmBBK with some gears.
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Post by 90GTVert on Jul 4, 2017 18:44:37 GMT -5
According to that list, my TMAX can't do the 100MPH that it does. Pretty close though actually, I'm about 5HP shy according to manufacturer specs.
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Post by FrankenMech on Jul 6, 2017 11:53:18 GMT -5
There are a LOT of variables that make that list unreliable.
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Post by aeroxbud on Jul 13, 2017 4:16:05 GMT -5
My TZR 125 had an official top speed of 96mph, with 24hp. Or 110 on the clocks if you wanted to believe them! Way out according to those figures.
So many variables to consider, but good for a rough guide.
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Post by benji on Jul 13, 2017 4:21:21 GMT -5
I've seen another calculator that put a motorcycle top speed at 88 with 24hp. I'm sure there's some fudging ability here, but its just a guideline. the only people who are gonna argue over 1 or 2 hp are scooter guys!
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Post by aeroxbud on Jul 14, 2017 6:33:51 GMT -5
I've seen another calculator that put a motorcycle top speed at 88 with 24hp. I'm sure there's some fudging ability here, but its just a guideline. the only people who are gonna argue over 1 or 2 hp are scooter guys! So many variables, weight of the rider. The drag of wide tyres, and even tyre pressures can make a difference. Not so much for scooters, but on motorcycles the aerodynamics play such a big part. You can even notice the difference just riding with leathers, and textiles. |
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Rune 75
Scoot Enthusiast
Posts: 441
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Post by Rune 75 on Jul 14, 2017 6:55:11 GMT -5
I've seen another calculator that put a motorcycle top speed at 88 with 24hp. I'm sure there's some fudging ability here, but its just a guideline. the only people who are gonna argue over 1 or 2 hp are scooter guys! So many variables, weight of the rider. The drag of wide tyres, and even tyre pressures can make a difference. Not so much for scooters, but on motorcycles the aerodynamics play such a big part. You can even notice the difference just riding with leathers, and textiles. I always ride naked, I even shave my entire body for less drag. Seems to work, no-one ever passes me. |
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Post by benji on Jul 14, 2017 16:56:50 GMT -5
I think that's the opposite of atgatt haha. A naked rider would risk so much road rash its uncomfortable to think about.
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Post by AtariGuy on Jul 16, 2017 12:11:34 GMT -5
Omg that made my day.
General weight, aerodynamics (read: naked as a jaybird) and efficiency/friction loss of course play a big role. What would be the test subject of the hp->speed figures?
Still fun to consider or make light of
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Post by FrankenMech on Jul 17, 2017 2:46:42 GMT -5
Whether one has eaten a load of burritos will also make a difference in speed. Solid and/or gaseous ejecta will make a big difference. One must be tucked to get maximum effect.
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Post by aeroxbud on Jul 17, 2017 7:23:51 GMT -5
I think that's the opposite of atgatt haha. A naked rider would risk so much road rash its uncomfortable to think about. But think of the glory on the speed list 😀 |
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