gear ratios and speeds

24
This spreadsheet was originally started by Sean Hollingsworth of Reno, NV Originally started in on Saturday, August 11, 2001 12:20:49 AM, and growing a bit Very simple. Very easy to modify. Very easy to understand. I constructed this spreadsheet so that simple numbers can be changed to see how much effect they have on the final speed of whatever motorcycle in any given gear. Orignailly built because I had to know the truth behind the On the first Tab "CR500R" I highlighted the numbers in Yellow that can be changed One of the numbers that may be changed is the Distance covered by one full rotation of the rear tire. If you are bright enough to Have Excel, then you're bright enough to understand t Distrubute freely, but please keep this Worksheet intact :) Sean Hollingsworth [email protected] Monday, 27 February, 2006 07:58:18 PM

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Page 1: Gear Ratios and Speeds

This spreadsheet was originally started by Sean Hollingsworth of Reno, NVOriginally started in on Saturday, August 11, 2001 12:20:49 AM, and growing a bit since.Very simple. Very easy to modify. Very easy to understand.

I constructed this spreadsheet so that simple numbers can be changed to see how much effect they have on the final speed of whatever motorcycle in any given gear. Orignailly built because I had to know the truth behind the numbers.

On the first Tab "CR500R" I highlighted the numbers in Yellow that can be changed

One of the numbers that may be changed is theDistance covered by one full rotation of the rear tire.

If you are bright enough to Have Excel, then you're bright enough to understand this spreadsheet.

Distrubute freely, but please keep this Worksheet intact :)

Sean [email protected], 27 February, 2006 07:58:18 PM

Page 2: Gear Ratios and Speeds

1999 CR500R

SprocketsFront: 15Rear: 48Ratio: 3.2000

StockFront: 14Rear: 49

redline ~8000rpm based on max speedachieved in DirtBike Magazine Test.See April 1999 issue, pages 41 and 42 for tests.Currently

Front: 15Rear: 48

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Page 3: Gear Ratios and Speeds

2000 XR600R

SprocketsFront: 14Rear: 45Ratio: 3.4286

StockFront: 14Rear: 45

Electronic Redline ~7550rpm

CurrentlyFront: 14Rear: 45

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140Gearing and Speeds XR600R

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Page 4: Gear Ratios and Speeds

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140Gearing and Speeds 1995 XR650L

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Page 5: Gear Ratios and Speeds

Gear Ratios and Speeds

XR650RPrimary Final Tire

Reduction Reduction Circumfrance Engine RPMSprockets (Inches) Ratios 0 500

14 1.6510 3.4286 83.25221 3.083 1st Gear 2.2648 diamerer*Pi 2.125 2nd Gear 3.28

1.666 3rd Gear 4.18Tire 1.333 4th Gear 5.22

Diameter 1.115 5th Gear 6.25(Inches)26.50

Distance Traveled per rotation of the rear tireCircumferance/12inches

Diameter*12 = 6.93768377668 feet/rotationFt./rot. x 5280 = 0.001313955 Miles/rotation

(((G$6/$B$7)/$E7)/$C$7)*$C$19*60

Electronic Redline around 8200 RPM ??

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140Gearing and Speeds 2000 XR650R

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Page 6: Gear Ratios and Speeds

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Page 7: Gear Ratios and Speeds

1000 1500 2000 2500 3000 3500 4000 4500 5000 55004.52 6.78 9.03 11.29 13.55 15.81 18.07 20.33 22.59 24.856.55 9.83 13.11 16.39 19.66 22.94 26.22 29.49 32.77 36.058.36 12.54 16.72 20.90 25.08 29.26 33.44 37.62 41.80 45.98

10.45 15.67 20.90 26.12 31.34 36.57 41.79 47.02 52.24 57.4712.49 18.74 24.98 31.23 37.47 43.72 49.96 56.21 62.45 68.70

20.10229 30.15344 40.20458 50.25573 60.30688 70.35802 80.40917 90.46031 100.5115 110.5626

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Page 8: Gear Ratios and Speeds

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Page 9: Gear Ratios and Speeds

6000 6500 7000 7500 8000 8500 9000 9500 10000 1050027.10 29.36 31.62 33.88 36.14 38.40 40.66 42.92 45.17 47.4339.32 42.60 45.88 49.16 52.43 55.71 58.99 62.26 65.54 68.8250.16 54.34 58.52 62.70 66.88 71.06 75.24 79.42 83.60 87.7862.69 67.91 73.14 78.36 83.59 88.81 94.03 99.26 104.48 109.7174.95 81.19 87.44 93.68 99.93 106.17 112.42 118.66 124.91 131.16

Váltószám 1.609344

120.6138 130.6649 140.716 150.7672 160.8183 170.8695 180.9206 190.9718 201.0229 211.0741

2000 XR650R

SprocketsFront: 14Rear: 48Ratio: 3.4286

StockFront: 14Rear: 48

Electronic Redline 8200rpm

Normal gear-upFront: 15Rear: 45

Page 10: Gear Ratios and Speeds

1100049.6972.1091.96

114.93137.40

221.1252

Page 11: Gear Ratios and Speeds

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140Gearing and Speeds 1998 ATK605ES

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Page 12: Gear Ratios and Speeds

1998 ATK605ES

Sprockets ~ 17/42Front: 15 16Rear: 45 38Ratio: 3.0000 2.3750

StockFront: 15Rear: 45Ratio: 3.0000

redline 7000 RPM based on Max speedin 3rd gear on level ground.

CurrentlyFront: 16Rear: 46

2.8750

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Page 13: Gear Ratios and Speeds

Gear Ratios and Speeds

XR400RPrimary Final Tire

Reduction Reduction Circumfrance Engine RPMSprockets (Inches) Ratios 0 500

15 2.9000 3.0000 83.25221 2.670 1st Gear 1.7045 diamerer*Pi 1.650 2nd Gear 2.75

1.250 3rd Gear 3.62Tire 1.000 4th Gear 4.53

Diameter 0.840 5th Gear 5.39(Inches)26.50

Distance Traveled per rotation of the rear tireCircumferance/12inches

Diameter*12 = 6.937683777 feet/rotationFt./rot. x 5280 = 0.001313955 Miles/rotation

(((G$6/$B$7)/$E7)/$C$7)*$C$19*60

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140Gearing and Speeds 1997 XR400R

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Page 14: Gear Ratios and Speeds

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Page 15: Gear Ratios and Speeds

1000 1500 2000 2500 3000 3500 4000 4500 50003.39 5.09 6.79 8.48 10.18 11.88 13.58 15.27 16.975.49 8.24 10.98 13.73 16.48 19.22 21.97 24.71 27.467.25 10.87 14.50 18.12 21.75 25.37 29.00 32.62 36.259.06 13.59 18.12 22.65 27.19 31.72 36.25 40.78 45.31

10.79 16.18 21.58 26.97 32.36 37.76 43.15 48.55 53.94

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Page 16: Gear Ratios and Speeds

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Page 17: Gear Ratios and Speeds

5500 6000 6500 7000 7500 8000 8500 9000 950018.67 20.36 22.06 23.76 25.45 27.15 28.85 30.55 32.2430.21 32.95 35.70 38.44 41.19 43.94 46.68 49.43 52.1739.87 43.50 47.12 50.75 54.37 58.00 61.62 65.24 68.8749.84 54.37 58.90 63.43 67.96 72.49 77.02 81.56 86.0959.33 64.73 70.12 75.51 80.91 86.30 91.70 97.09 102.48

1997 XR400R

SprocketsFront: 15Rear: 45Ratio: 3.0000

StockFront: 15Rear: 45

9600 RPM Redline was confirmed by a Dirtrider Magazine test in 1996.

CurrentlyFront: 15Rear: 45

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Page 18: Gear Ratios and Speeds

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Page 19: Gear Ratios and Speeds

10000 10500 1100033.94 35.64 37.3354.92 57.67 60.4172.49 76.12 79.7490.62 95.15 99.68

107.88 113.27 118.67

Page 20: Gear Ratios and Speeds

Chart

Nothing was done with this page.

RPM15,00014,50014,00013,50013,00012,50012,00011,50011,00010,50010,000

9,5009,0008,5008,0007,5007,0006,5006,0005,5005,0004,5004,0003,5003,0002,5002,0001,5001,000

5000

Speed 0 10 20 30 40 50 60

Page 21: Gear Ratios and Speeds

70 80 90 100 110 120 130 140 150

Page 22: Gear Ratios and Speeds

160 170