Monthly Archives: February 2023

I’ve been studying the Z900 bike since the latter half of last year, and from that data, I’ve redesigned the spring rate, final, and everything else. I took it to a practice session.   When you actually run the vehicle that you have calculated on your desk, is the direction right? It’s an answer match. […]

In the previous article, I wrote about making the Z900 final long.   Why didn’t you do the math yourself? It’s strange When I calculated the total final ratio of the Z900, it was 6 points shorter than the GSXS1000 I used to ride. I found out that the ZRX1200 is also 5 shorted (^-^; […]

It’s been 10 years since I went to an event at the bike shop Outban in Okinawa. During that time, I participated in the Okinawa Moto Gymkhana Tournament several times. However, it was a spot race, and the vehicles were Z650 and Z400 borrowed from Outvan.   I’m over 60 and I’m a little further […]

The setup of the Z900 has progressed little by little. So far, we are looking at the balance between preload and spring rate while looking at the height of 0G and the balance between 1G and 1G’. I am studying the body and link characteristics of the Z900 so that I can raise the gymkhana […]

The Z900SE that I prepared for this season has been set up with the OEM rear suspension all the time. OEM can only adjust preload and elongation damper, so the setup range was very narrow Checking the overall balance and the characteristics around the link while trying to deceive something I’ve been doing the setup […]

Since I had nothing to do with the Z900, I tested the spring rate of the rear suspension. Since the normal was 100N Ohlins suspension and the preload was not applied much, This time, I set it up by pre-setting it with 90N.   As for comparison with 100N, 90N is good for ease of […]

for Ducati Streetfighter 848 This time, I made SSB for Street Fighter 848.   I had built a Ducati SSB before, but unlike the air-cooled Ducati, the engine was tightly packed inside the frame. The U-shaped bolt does not fit in, the radiator hose gets in the way, and although it is the same as […]