Utility Calculation Center Gravity Motorbike - by NT-Project
 
CENTER GRAVITY ONLY MOTORBIKE CENTER GRAVITY MOTORBIKE + RIDER
wheelbase mm wheelbase mm
diam.wheel mm diam.wheel mm
Place the motorbike on two scales to detect the front and rear weights and calculate the center of gravity of the motorbike Place the motorbike with rider on two scales to detect the front and rear weights and calculate the center of gravity of the motorbike
Kg Kg Kg Kg
H mm H mm
Lift the rear of the motorbike and then detect the new front weight to calculate the center of gravity of the motorbike Lift the rear of the motorbike with rider and then detect the new front weight to calculate the center of gravity of the motorbike
  Kg   Kg
front % rear % front % rear %
height of center of gravity height of center of gravity
mm mm
CHANGE MOTORBIKE BALANCE CHANGING THE POSITION SEAT
SL mm SV mm
front % rear % variation in load transfer %
 
PROBLEMS OF MOTORBIKE SETUP or OF TYRES? SET-UP BIKE THE SOLUTION!
 
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Help
1. Enter the wheelbase of Motorbike, and the average diameter of the wheels
2. Place the Motorbike on two (one per axis) or 4 scales (one for wheel) and measured the weights on the two axes.
3. At this point you need to lift the rear Motorbike at a height such that to see on the scales an appreciable difference of weight compared to the measurement in the plane, usually 300-500 mm of heights are sufficient. Enter the measure of the height  (H) that you use, and the new weight measured on the axis front.
4. After entering the data click the button "Calculation Center Gravity Motorbike" and you will have the results of the center of gravity of the only Motorbike.
5. At this point repeat the procedure with the rider on board snd click on "Calculstion Center Gravity Motorbike with Rider" and you will have the results of the center of gravity of the Motorbike with Rider.
6. If you have entered the data and calculated both center of gravity of only Motorbikes, both with the rider, this utility will lets see how it changes the weight distribution between front and rear, and varies as the load transfer moving the seat from its original location.
7. Enter the longitudinal displacement of the seat SL relative to the position Initial (put positive values if the advanced seat towards the axis front, negative if backward toward the rear axle).
8. Enter the vertical displacement of the seat SV relative to the position Initial (put positive values if you raise the seat, if negative it lowered).
9. Click on the button "Calculation New Motorbike Balance" and you'll have the results.