How Much Power Does the 2025 Suzuki DR-Z4S Make?

For dual sport enthusiasts, some of the biggest news of 2025 was the unveiling of Suzuki’s DR-Z4S. It boasts modern technology not found on its DR-Z400S predecessor such as EFI, a ride-by-wire throttle system, and Suzuki Dual Spark Technology. Those new features along with all other powerplant updates were aimed at enhancing engine performance across the rpm range and improving fuel efficiency. Did Suzuki accomplish the former?

With maximum figures of 33.5 hp and 23.9 lb.-ft. of torque, as measured on Dirt Rider’s in-house Dynojet 250i rear-wheel dynamometer, the DR-Z4S produces 1.7 hp more and 0.4 lb.-ft. of torque less than the DR-Z400S at peak. Analyzing dyno charts side by side shows the DR-Z4S is up about 1 hp at 3000 rpm and 4800 rpm, down 1 hp at 6000 rpm, up 1 hp at 8000 rpm, and up nearly 4 hp at rev limit (which is just shy of 10,000 rpm on both models). The DR-Z4S and DR-Z400S are equal at 7000 rpm and 9000 rpm.

It’s safe to say Suzuki accomplished its goal of more overall power on the DR-Z4S, which is all the more important considering it weighs 8 pounds more than the DR-Z400S when fully fueled (332 pounds vs. 324 pounds on our automotive scales).