The first test performed was a max speed from a standing start in 2.0 miles.
The test bike was a 1989 FZR600 and all of the runs were done with maximum throttle. The speed was recorded using a rear wheel speed sensor calibrated to 0.1 mph. All speeds were recorded in mph.
The first two runs were made with the stock fender to set a baseline.
| Run 1 | 138.0 |
| Run 2 | 138.7 |
| Average | 138.4 |
The next two runs were made with the Ryno Fender.
| Run 3 | 141.5 |
| Run 4 | 142.0 |
| Average | 141.8 |
The next two runs were with the stock fender to identify any changes that might have happened to affect the results.
| Run 1 | 137.8 |
| Run 2 | 138.2 |
| Average | 138.0 |
Average speed with the stock
fender 138.2 mph
Average speed with the Ryno Fender 141.8 mph
Average increase with the
Ryno Fender 3.6 mph
The second test performed was a track test at Grattan Raceway in Michigan. The idea was to use a data acquisition system to record speed, front suspension displacement, and air box pressure during a long practice session.
The section of the track we looked at was the exit of the last corner on to the front straight to the braking marker for turn one.
The front suspension sensor measured the height of the front forks in inches and the data shown is at the highest point of fork extension, which happened at the same time as the highest speed was reached. The higher the number the father up te suspension is extended.
Lap times were not compared due to the large number of racers from different classes sharing the track.
The rider was a CCS expert on his own 1991 CBR600F2. His bike was equipped with a ram air box located just above the radiator.
First session
with no fender:
With
Stock Fender |
|||
| Lap | Turn 12 Exit Speed (mph) | Turn One Entrance Speed (mph) | Front Suspension Extension (Inches) |
| 1. | 74.6 | 129.1 | 6.9 |
| 2. | 63.4 | 131.6 | 6.9 |
| 3. | 74.6 | 134.9 | 6.9 |
| 4. | 74.6 | 134.9 | 6.8 |
| 5. | 73.8 | 133.3 | 7.0 |
| 6. | 73.0 | 134.1 | 6.8 |
| 7. | 62.3 | 134.1 | 6.9 |
| 8. | 74.6 | 132.5 | 6.9 |
| 9. | 73.0 | 130.8 | 7.0 |
| Average | 71.5 | 132.8 | 6.9 |
With
Ryno Fender |
|||
| Lap | Turn 12 Exit Speed (mph) | Turn One Entrance Speed (mph) | Front Suspension Extension (Inches) |
| 1. | 70.8 | 131.0 | 6.5 |
| 2. | 71.6 | 134.8 | 6.6 |
| 3. | 68.5 | 135.6 | 6.4 |
| 4. | 71.6 | 136.3 | 6.6 |
| 5. | 71.6 | 134.8 | 6.7 |
| 6. | 63.8 | 131.7 | 6.6 |
| 7. | 70.0 | 134.8 | 6.6 |
| 8. | 75.5 | 136.4 | 6.5 |
| 9. | 74.7 | 138.7 | 6.6 |
| 10. | 67.7 | 135.6 | 6.6 |
| 11. | 71.6 | 134.0 | 6.7 |
| Average | 70.6 | 134.9 | 6.6 |
| The average speed exiting turn 12 with the stock fender | 71.5 mph |
| The average speed entering turn 1 with the stock fender | 132.8 mph |
| The maximum speed for test with the stock fender | 134.9 mph |
That is an average increase of 61.3 mph with the stock fender
| The average speed exiting turn 12 with the Ryno Fender | 70.6 mph |
| The average speed entering turn 1 with the Ryno Fender | 134.9 mph |
| The maximum speed for test with the stock fender | 138.7 mph |
That is an average increase of 64.3 mph with the Ryno Fender, and a top speed increase of 3.8 mph
Even though he was on average 1 mph slower coming out of turn 12 he was an average of 3 mph faster going into turn 1 when the Ryno Fender was used.
This huge gain was achieved despite the slight lost of air box pressure that was recorded. With the stock fender the air box pressure rose as speed increased to a pressure almost 1 psi greater than atmospheric on that day. When the fender was used, the air box pressure was constant as speed increased at a pressure equal to the atmospheric pressure.
| The average front suspension extension with the stock fender | 6.9 inches |
| The average front suspension extension with the Ryno Fender | 6.6 inches |
That is a decrease of 0.3 inches for the front fork extension with the Ryno Fender
This is the most beneficial thing to the rider. The front suspension rode 0.3 inches lower at top speed. This suggests that there is a substantial decrease in the lifting forces on the front end. Less lift on the front means that there is more weight put on the front tire. This extra weight means that the bike will be more stabile. It also means that there will be more traction available for turning which means a faster speed could be used and not run wide in the corner.