This tool has made for calculating the speed(MPH,km/h) for a given transmission gear ratio.
You can select any motorcycles and cars and calculate speed.
And you can change any parameters(sprocket, tire, revlimit, etc..).

Speed calculating formulas are as follows.
speed = (RPM*60) * (tire peripheral length) / (final gear ratio)
tire peripheral length = Diameter * Pi(3.14..)
Diameter(mm) = width * (aspect ratio/100)*2 + size(inch) * 25.4

0, WR250F '07, 3.353, 13, 50, 2.385, 1.750, 1.333, 1.042, 0.815, 0.000, 2100, 11500, 10500, END
0, WR450F '08, 2.652, 13, 50, 2.417, 1.733, 1.313, 1.050, 0.840, 0.000, 2140, 11000, 9000, END
0, YZ250 '07, 3.000, 14, 50, 1.929, 1.533, 1.278, 1.091, 0.952, 0.000, 2140, 9000, 8000, END
0, YZ125, 3.368, 13, 48, 2.385, 1.933, 1.588, 1.353, 1.200, 1.095, 2100, 13000, 11500, END
0, CRF150R2 '07, 4.117, 15, 56, 2.214, 1.647, 1.318, 1.105, 0.956, 0, 1841, 13500, 12500, END
0, TT-R125LW, 3.579, 13, 54, 2.643, 1.778, 1.316, 1.045, 0.875, 0, 1840, 9000, 8000, END
0, CR85II, 4.117, 15, 49, 2.267, 1.722, 1.400, 1.174, 1.042, 0.920, 1840, 13000, 12000, END
0, YZ85LW, 3.611, 14, 47, 2.454, 1.882, 1.529, 1.294, 1.130, 1.000, 1840, 13000, 12000, END
1, WR250R '07, 3.120, 13, 43, 2.642, 1.812, 1.318, 1.040, 0.888, 0.785, 2100, 11000, 10000, END
1, WR250X '07, 3.120, 13, 42, 2.642, 1.812, 1.318, 1.040, 0.888, 0.785, 1940, 11000, 10000, END
1, DT125R(3FW) '91-, 3.227, 17, 53, 2.833, 1.857, 1.352, 1.090, 0.916, 0.800, 2100, 10000, 9000, END
1, LANZA(4TP), 2.571, 16, 55, 2.750, 1.875, 1.412, 1.143, 0.957, 0.818, 2100, 9500, 8500, END
1, XR250, 3.100, 13, 40, 2.769, 1.882, 1.380, 1.083, 0.923, 0.814, 2100, 8500, 8000, END
1, XR250R('86 MD16), 3.100, 13, 40, 2.769, 1.941, 1.450, 1.113, 0.923, 0.785, 2100, 8500, 8000, END
1, TT250R, 3.083, 14, 44, 2.466, 1.812, 1.363, 1.080, 0.888, 0.758, 2100, 9000, 8500, END
1, KLX250 '08, 2.800, 14, 42, 3.000, 2.000, 1.500, 1.190, 1.050, 0.952, 2100, 10000, 9000, END
1, Serrow225, 3.318, 15, 45, 3.090, 2.000, 1.428, 1.125, 0.925, 0.793, 2100, 9000, 8000, END
1, Serrow250, 3.083, 15, 48, 2.846, 1.812, 1.318, 1.035, 0.821, 0, 2100, 8500, 7500, END
1, XR400motord, 2.666, 15, 37, 2.615, 1.789, 1.350, 1.076, 0.892, 0, 1972, 7500, 7000, END
1, DR-Z400SM, 2.960, 15, 41, 2.285, 1.733, 1.375, 1.090, 0.863, 0, 1972, 8000, 7500, END
2, KLX110, 3.048, 14, 37, 3.273, 1.938, 1.350, 0, 0, 0, 1436, 8000, 7000, END
2, KSR110, 3.409, 15, 31, 3.000, 1.937, 1.350, 1.086, 0, 0, 1523, 9500, 8500, END
2, KSR-1, 3.043, 13, 49, 3.307, 2.111, 1.545, 1.240, 1.074, 0.965, 1523, 9000, 8000, END
2, KSR-2, 3.043, 15, 40, 3.307, 2.111, 1.545, 1.240, 1.074, 0.965, 1523, 9000, 8000, END
2, CRF50, 4.058, 14, 37, 3.272, 1.667, 1.190, 0, 0, 0, 1200, 9500, 8500, END
2, KX65, 3.500, 13, 47, 2.846, 2.125, 1.722, 1.428, 1.217, 1.083, 1460, 13500, 12500, END
3, YZF-R1 '98, 1.581, 16, 43, 2.600, 1.842, 1.500, 1.333, 1.200, 1.115, 2040, 11500, 10500, END
3, CBR1000RR '04-05, 1.604, 16, 40, 2.538, 1.941, 1.578, 1.380, 1.250, 1.160, 2040, 12500, 10000, END
3, NSR250R '91(MC21), 2.360, 15, 40, 2.846, 2.000, 1.578, 1.333, 1.190, 1.083, 1922, 11000, 9000, END
4, NSR50 '90, 4.117, 16, 48, 3.166, 2.062, 1.500, 1.173, 1.000, 0.884, 1561, 11000, 0, END
4, NSR80 '90, 4.117, 16, 35, 3.166, 2.062, 1.500, 1.173, 1.041, 0.923, 1561, 11000, 0, END
4, Ape50, 4.437, 14, 46, 3.083, 1.882, 1.400, 1.130, 0.960, 0, 1561, 9000, 0, END
4, Ape100/XR100motord, 4.437, 15, 33, 3.083, 1.882, 1.400, 1.130, 0.923, 0, 1561, 9000, 8000, END
5, GPZ1100, 1.637, 17, 43, 2.800, 2.055, 1.590, 1.333, 1.153, 1.035, 1997, 9000, 8500, END
5, CB600F Hornet, 2.111, 16, 43, 2.750, 1.938, 1.556, 1.348, 1.208, 1.095, 1979, 13000, 12000, END
5, TRX850, 1.717, 17, 41, 2.571, 1.850, 1.428, 1.173, 1.037, 0, 1960, 8000, 7500, END
5, GPZ900R Ninja, 1.732, 17, 47, 2.800, 2.000, 1.590, 1.333, 1.153, 1.035, 2096, 9500, 9000, END
5, CB400SF, 2.171, 15, 44, 3.307, 2.294, 1.750, 1.421, 1.240, 1.130, 1960, 11500, 0, END
5, Goose350, 2.818, 14, 36, 2.500, 1.733, 1.333, 1.111, 0.952, 0.826, 1972, 8500, 8000, END
5, Ninja250R, 3.086, 14, 43, 2.600, 1.789, 1.409, 1.160, 1.000, 0.892, 1928, 12000, 11000, END
6, HIACE 1KD-FTV(3000D), 4.100, 1, 1, 2.804, 1.531, 1.000, 0.705, 0, 0, 2177, 4000, 0, END
6, HIACE 2TR-FE(2700), 4.300, 1, 1, 2.804, 1.531, 1.000, 0.753, 0, 0, 2177, 5000, 0, END
6, HIACE 1TR-FE(2000), 5.125, 1, 1, 2.826, 1.493, 1.000, 0.730, 0, 0, 2177, 6000, 0, END
6, HIACE 1KD-FTV(3000D 5MT), 3.727, 1, 1, 4.313, 2.330, 1.436, 1.000, 0.838, 0, 2177, 4000, 0, END
6, HIACE 2TR-FE(2700 5MT), 4.556, 1, 1, 4.452, 2.619, 1.517, 1.000, 0.854, 0, 2177, 5000, 0, END
6, RX-7(FD3S) type RZ-II, 4.300, 1, 1, 3.483, 2.015, 1.391, 1.000, 0.762, 0, 1998, 7000, 6500, END
6, RX-7(FC3S), 4.100, 1, 1, 3.483, 2.015, 1.391, 1.000, 0.806, 0, 1970, 7000, 6500, END
6, RX-7(FC3S typeR-S), 4.300, 1, 1, 3.483, 2.015, 1.391, 1.000, 0.806, 0, 1970, 7000, 6500, END
6, LUCE 13B rotary turbo, 4.100, 1, 1, 2.841, 1.541, 1.000, 0.720, 0, 0, 1993, 7000, 6500, END
6, AE86(4A-GE), 4.300, 1, 1, 3.587, 2.022, 1.384, 1.000, 0.861, 0, 1851, 7000, 6600, END
6, NISSAN GT-R, 3.700, 1, 1, 4.056, 2.301, 1.595, 1.248, 1.001, 0.796, 2223, 7000, 0, END
6, HONDA BEET, 5.714, 1, 1, 3.428, 2.166, 1.576, 1.172, 0.941, 0, 1739, 9000, 0, END
6, SILVIA S14K's/S14Q's/180SX, 4.083, 1, 1, 3.321, 1.902, 1.308, 1.000, 0.759, 0, 1985, 7000, 0, END
6, S2000(F20C), 1.208, 10, 41, 3.133, 2.045, 1.481, 1.161, 0.942, 0.763, 1984, 9000, 0, END
6, ACORD Euro-R(K20A), 4.764, 1, 1, 3.266, 2.130, 1.517, 1.212, 0.972, 0.780, 1964, 8500, 0, END
6, CIVIC EG4 VTI, 4.250, 1, 1, 3.250, 1.900, 1.250, 0.909, 0.750, 0, 1832, 7200, 0, END
6, CIVIC EG6, 4.400, 1, 1, 3.230, 2.105, 1.458, 1.107, 0.848, 0, 1871, 8200, 0, END
6, INTEGRA type-R(DC2 5MT), 4.785, 1, 1, 3.230, 2.105, 1.458, 1.034, 0.787, 0, 1885, 8500, 8000, END
6, Integra type-R(DC5 6MT), 4.785, 1, 1, 3.266, 2.130, 1.517, 1.212, 0.972, 0.780, 1964, 8500, 8000, END
6, integra type-S(DC5 S-matic), 4.562, 1, 1, 2.684, 1.500, 1.030, 0.772, 0.571, 0, 1964, 7000, 6500, END