Motorcycle Gearing Worksheet

Motorcycle Gearing Worksheet. Values. (Enter). Total Ratio. Minimu m Speed ... Engine Max Torque RPM. 7 750 Couple maxi. Change Down RPM. 2 500.
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Motorcycle Gearing Worksheet Values (Enter) Primary Drive Ratio 1st Gear Ratio 2nd Gear Ratio 3rd Gear Ratio 4th Gear Ratio 5th Gear Ratio 6th Gear Ratio Front Sprocket (Teeth) Rear Sprocket (Teeth) Wheel Rim Size (Inches) Tyre Width (mm) Tyre Depth (%) Engine Min RPM Engine Max Torque RPM Change Down RPM Change Up RPM Max Power RPM

Total Ratio

1.750

RPM at Change Up (RPM)

2.733

11.427

20

78

94

N/A

60

40

N/A

N/A

1.947

8.141

28

109

132

35

84

49

1 725

4 275

1.545

6.461

35

137

166

44

106

62

1 238

4 762

1.292

5.400

42

164

199

53

127

74

985

5 015

1.154 1.074

4.824 4.490

47 51

184 197

223 239

59 64

142 N/A

83 176

640 415

5 360 5 585

18

2.389

43 17 190 55

Dev (m)

2.013

2 000 7 750 Couple maxi 2 500 6 000 9 400

1st Gear Speed RPM

Minimu Maximum Speed at Change Change Speed RPM Drop m Speed Speed Max Power Dwn Speed Up Speed Range at Change Up (KPH) (KPH) (KPH) (KPH) (KPH) (KPH) (RPM)

60 4 275

RPM Corr 2nd Gear 84 4 762

5.30%

0.947

3rd Gear 4th Gear 5th Gear 106 5 015

127 5 360

142 5 585

6th Gear 239 9 400

Speed km/h

1st Gear 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000

2nd Gear

3rd Gear 4th Gear

5th Gear

6th Gear

9000 8000 7000 1st Gear 6000 2nd Gear 5000 3rd Gear 2850 3210 3560 3920 4280 4630 4990 5340 5700 6050

4000 4th Gear 3000 5th Gear 3110 3390 3680 3960 4240 4520 4810 5090 5370 5650 5940 6220

2000 6th Gear 3070 3310 3550 3780 4020 4250 4490 4730 4960 5200 5430 5670 5910 6140

1000 0 3170 3380 3590 3800 4010 4220 4430 4640 4850 5070 5280 5490 5700 5910 6120

0

50 3150 3340 3540 3730 3930 4130 4320 4520 4720 4910 5110 5300 5500 5700 5890 6090 6290 6480 6680 6870 7070

100

150

200