SET-UP Gear optimal motorbike final drive ratio - engine speed range - brake distribution

How it works?

To be able to find the gear ratio that allows you to get the best performance on a given track, in the atmospheric and grip conditions that there are, so far we have relied on the experience accumulated in previous sessions on that track, or to the sensations of the rider in the previous run, however, in a w.e of race the weather and the track conditions change continuously, so the information passed often are of little use, for this reason NT-Project has developed the software SET-UP Gear that allows to simulate the performance of the motorbike on the different tracks in function of the characteristics of the chassis, the engine, the tires, and the final drive ratio used, obviously depending on the weather and grip conditions, in this way, you can quickly find the sprockets to use to get the best performance and to make the best choice first still to go on the track.

As you can see from the following graph the performance simulated by the software has a remarkable precision compared to the real drive (the only differences in some points are related to a better exploitation of the grip by the virtual rider compared to the real one), therefore the indications on the optimal transmission ratio to use are fully realistic.

SET-UP Gear to find the best motorbike final drive ratio on all the tracks and for every weather and grip condition by NT-Project

The software SET-UP Gear as well as helping you in choosing the final drive ratio, in motorbike engines with gearbox, it also helps you to to find the engine speed of upshift and downshift to exploit at the best your engine, moreover in the motorbike where you can manage the distribution of braking between front and rear, tells you which is the optimal setting of the braking distributor.

To use the software is very easy, in fact you will have to simply choose in your software, your motorbike category, the engine that you use, the tires, and the track where you want to calculate the optimal final drive ratio.

The data necessary are very easy to find, in fact :

for the motorbike is necessary to carry out some measures to determine the wheelbase and the balance, while for what concerns the drag resistance can be used sample data fully adequate for most of the motorbikes.

for the engine the power curve must be entered, this can be detected at the dyno, or, if you have a data acquisition system on the motorbike, it can be calculated directly by the software, importing the data of a session. In addition to these data, the gearbox gear pair ratios must be entered.

for the wheels the dimensions and the grip characteristics must be inserted, for these you can use example data for the most used tires, or, if you have a data acquisition system on the motorbike, they can be calculated directly by the software, importing the data of a session.

for the track, since the track line significantly determines the result, it is advisable to use the data acquired on the track of interest, and calculate the trajectory directly with the software.

At this point inserting the weather conditions and the level of grip, you can simulate 3 configurations of the front and rear sprockets to find the one that allows you to get the best lap time.

Results

OPTIMAL MOTORBIKE FINAL DRIVE RATIO CALCULATION

In a few seconds the software SET-UP Gear shows you the results of the simulated performance in the different configurations.

The most important data is the lap time, that allows you to find immediately the best configuration, in the case of the example the final drive ratio used in the configuration 3 has given the best lap.

In addition to the lap time, however, is also shown how the throttle should be choked depending on the configuration chosen, this is important to understand if the final drive ratio chosen tends to generate a more consistent slide that can lead to an early wear of the tires. In the case shown, configuration 1 needs more throttle cut, while the 2 allows to exploit the gearbox differently and to be able to use the throttle more easily, but at the expense of the lap performance, so even under this aspect the configuration 3 is the best compromise.

The software in addition to the lap time, and to the average thottle cut, shows also the graphs of the speed, of the engine speed, and, in the engine with gearbox, of the gear shift used, so will be possible also analyze in the detail how in the differents point of the track, the differents final drive ratio influence the performance.

SET-UP Gear to find the best motorbike final drive ratio on all the tracks and for every weather and grip condition by NT-Project

Others features

POWER CURVE and TRACK LINE CALCULATION from ACQUISITION DATA

As said initially the software SET-UP Gear allows to calculate directly from the data acquired from your acquisition, the power curve of your engine, the tyres grip, and the track line carried out by your rider, in this way the calculation of the better transmission ratio will be even more accurate for your case specific.

SET-UP Gear calculation power curve and track line motorbike from acquisition data by NT-Project

Others Results

OPTIMAL GEAR UPSHIFT and GEAR DOWNSHIFT CALCULATION

In addition to the possibility to simulate the performance changing the final drive ratio the software allows to find which is the operating range to exploit at the best the motorbike engine, in fact is possible to keep fix the final drive ratio and to modify the upshift and downshift engine speed to see which are the optimals to obtain the best lap time.

SET-UP Gear calculation optimal engine speed gear upshift and best engine speed downshift motorbike by NT-Project

In the example shown, you can see that the utilization ranges chosen in the configurations 2 and 3 give to a very similar performance, but in the 2, against a slight advantage, is necessary to cut much more the throttle, so maybe you can take advantage to use the engine in this way in qualify, but in the race is better to stay on a different utilization to preserve better the tires. Thanks to the software SET-UP Gear, is therefore easy to suggest to the rider in which operating range to use the engine to get the best performance, and to do the best choices also to take account of the tires duration.

OPTIMAL MOTORBIKE BRAKING DISTRIBUTION CALCULATION

For the motorbike where is possible to manage the braking with the distributor, an other important calculation that performs the software SET-UP Gear is that to find the brake distributor setup to obtain the most effective braking in function of the track and of the grip condition.

SET-UP Gear calculation optimal brake distribution motorbike by NT-Project

In the example shown you can see that on the track under examination, to distribute the braking more on the front gives an improvement until to 60%, after tends to get worse. The optimal value obviously changes in function of the features of the track, and of the grip conditions, and since that are little differences often for the rider isn't easy to understand on which direction move the distribution to improve, instead thanks to the software SET-UP Gear you can find the best setup of the braking distribution fastly and with precision for each track and on every condition.

How you've seen the software SET-UP Gear allows you to improve the performance finding the optimal setup to exploit at the best your motorbike engine (optimal final drive ratio and optimal engine operating range), and to the most effective braking.

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