Category Archives: Bunta’s Initial B

Dunlop has announced that the country of production for the Q5 will be changed to Japan, with some production to be in Thailand. This is expected to ensure a stable supply. In that case, if it is a tire for public roads and there is a stable supply, there would be no need to stick […]

The setup of the Z650 is also progressing smoothly. On Sunday, I participated in a practice session at the Tsukuba Circuit Gymkhana and attacked in the morning with the Q5A. In the afternoon, I changed to Diablo V2 tires, which are a little old. I am currently running with the changes I introduced in my […]

This was my fourth gymkhana-style run and setup since I started building the Z650. The rear spring rate was changed based on the data from the previous run, and the suspension was set up accordingly. We then considered the differences between the Q5A and Diablo and looked at the differences in setup. As a result, […]

It’s something I’ve been thinking about for a while, but as I successfully turned 62 in July, I’ve decided to compete in the second half of 2024’s “Kanto Official Races” on a Z650.   To be honest, once I turned 60, I wanted to enjoy gymkhana in a more challenging way. For example, maybe I’ll […]

This year, I went to participate in the TRY Gymkhana, which was held at Sportsland TAMADA.   It’s a really fun course that uses Tamada’s circuit course. Overall image of the course This is the course map for this time. The first half of the course is almost a circuit, but from the middle it […]

After spending the first half of the season, I was able to confirm the potential of the KX112, When I try to ride the Dunlop TT93GP, I feel a bit uneasy about the fact that it has the performance of a touring tire and is challenging the Q5 team. CST would increase by about 3% […]

It seems like just the other day I turned 60, but it’s already my 62nd birthday. You’re getting old in the blink of an eye I have been able to continue participating in Gymkhana and SSB thanks to everyone’s support, and I would like to continue doing my best in the future. But I’m 62 […]

We will be participating in SRTT Street Hyper at Tomin Motorland on July 28th. The vehicle used this time is a Kawasaki Z650, and it will be equipped with Q5A street tires. Thank you to all the participants who are watching this.   When running a Z650 on a closed course, how much difference is […]

I brought the Z650 to my second gymkhana practice session. Based on the data from the last time, I shortened the final by two teeth and lowered the seat by about 20 mm. The Final two-gear short bike can be enjoyed on public roads, and the seat is thick enough that it doesn’t hurt your […]

The Z650 was chosen as a machine that can be enjoyed on touring, mountain roads, and even in gymkhana. Last week I brought it to a gymkhana practice session for the first time.   Our goal is to create a machine that will perform comfortably both on touring and on mountain roads, without becoming a […]

The event will be held again this year at Tsukinowa Driving School in Shiga Prefecture. Let’s Run with KIG Sakuta DAY   I’m by no means good at teaching, but I’d love to be able to give you all some advice while having fun running with you all. If possible, I would like to ride […]

It seems that many people from the JAGE training the day before joined, but I can’t keep up with my current physical condition, so I went to a nearby mountain on Saturday. I’ve been spending my time slowly adjusting my body and mind. We ran just under 200km, which was a bit too much for […]

At the request of Honda HMS, we fitted a SSB bumper + HMS pipe + SSB slider α + rear slider + new muffler guard to a CB1000R. The radiator shroud has also been modified to give it a cool finish.   This time, the request was for five vehicles, so we expect them to […]

Introducing our new partner.   This is the 2023 model of the Kawasaki Z650. I have two touring bikes, an NC750X for long distance touring and a CB125R for short distance rides. I wanted a bike for medium distance riding, so I found a used one that was just right and bought it.   The […]

Lately I’ve been obsessed with setting up the Z250SL and practicing with it.   What you can practice when using an SL is how to pick up engine power by accelerating as early as possible at extremely low speeds.   The bike is sharp and moves forward, and the idling speed is normal at 1500 […]

The fourth Dunlop event of 2022 took place in heavy rain. The video of me riding the ZRX1200R has been viewed an astonishing 1 million times.   I’m very happy that so many people watched it. After all, SAKUTA = ZRX is indisputable (laughs).   You won the SB class in this competition. The tires […]

I participated in the second round of the 2024 Jimuchaya Cup. This time, the borrowed class will be the Z250SL and the main class will be the KX112.   Three weeks after restarting development, I enjoyed the Jimu Chaya Cup on my Z250SL for the first time in a long while.   As a rider, […]

When setting up the ARACER, it is essential to use a wideband O2 sensor to get as close as possible to the ideal air-fuel ratio. From there we move on to a setup to make it go faster. However, it seems that the O2 sensor was broken and I realized that the data I had […]

The Z250SL’s engine has been tuned by Suzuka Porting, the same company that worked on the Ninja 400. That said, no aftermarket parts are used and the tuning is done using only genuine parts. However, since there are limitations to setting up the stock ECU, we installed an aftermarket ECU called ARACER, which is a […]

I’ve had a Z250SL for a while now, but I’ve been using it on the circuit, lending it to friends, and going to mountain passes. I’ve used it in a variety of ways. When I first bought it, it was in its normal condition and even entered the Jimu Chaya Cup.   Last year I […]