After the track version, the road version is also under consideration?
As the third Cyclone for ZX-25R following R-77S/R-11, YOSHIMURA is now developing the ultra-short type HEPTAFORCE. Once the commercialization for track use is achieved, the consideration of the street specification with the same style will be started.
Commercialization of HEPTAFORCE decided in response to the world's love call
Riders interested in the ZX-25R will remember the racer version that was unveiled by Kawasaki Indonesia in June '20. YOSHIMURA's HEPTAFORCE that was installed on that motorcycle was just a prototype, but in response to the response from all over the world, the company decided to make it commercially available. At the moment, the global model for the circuit is under development, while the street version will be under serious consideration.
However, it will not be easy to keep the volume down according to the application while maintaining the super short style. However, YOSHIMURA's technical expertise, which has been used in a wide variety of exhaust systems, should be able to solve the problem. If you are interested in the development status, please check the company's SNS frequently.
Must-see! The world's fastest access to the sounds of the HEPTAFORCE!
I've been covering the development of the HEPTAFORCE for the ZX-25R on Webike!
As a company that has created many traditions and legends, YOSHIMURA cannot afford to lose out on racing parts. We were able to hear once again their passion for development and their commitment to their products. You can hear all that passion and exhaust system sound in this video!
HEPTAFORCE TSS RACING SPEC
The HEPTAFORCE for the ZX-25R has been developed with a focus on the track, and is completely different from the existing R-77S/R-11 Cyclone. The exhaust pipes are kept to a minimum to accommodate the big radiator and oil cooler, and the bypass pipe structure and location is also different from the street version.
The know-how of racing is used everywhere!
YOSHIMURA Rearset KIT X-TREAD
Although most of the parts YOSHIMURA has sold for the ZX-25R so far have been street-oriented, the X-TREAD rearset kit is an effective weapon on the track as well. There are four positions to choose from, and the bars are machined for grip.

●Stock quick-shifter compatible, positive change specification, ABS, brake switch compatible.
See Accessories of YOSHIMURA
See KAWASAKI Moto Index Page
See Accessories for KAWASAKI ZX-25R