GPW / UMW Side Winglet Set ZX-4R / ZX-4RR

R2 presents a brand-new design of aerodynamic winglets for your Ninja, featuring an avant-garde racing style and competitive spirit, turning your Ninja into a swift gust of wind slicing forward like a gleaming blade.

Added with the mid-body diffuser, your Ninja gains a stronger sense of presence.

Inspired by MOTOGP applications, we designed dimensions and styles more suitable for everyday road and sport use. Compared to GPW which generates greater downforce, the UMW design intentionally avoids excessive downforce, aiming for stability.

This kit uses 3M VHB automotive double-sided tape (capable of withstanding pressures over 250 km/h) to firmly attach and conform to the fairing, providing a secure fit without drilling holes. The material’s toughness and manufacturing process also help absorb the first major impact on the bodywork during falls or collisions. Upon impact, it can crush or break away from the vehicle, reducing the chain reaction on mounting points and minimizing rider injury during crashes.

Inspired by the flowing slashes of the Ninja, the sharp tank pad contours are sculpted with R2’s signature sci-fi style, refining a riding experience beyond the ordinary.

If your lower body cannot be firmly fixed while riding, you risk losing control in unexpected situations!

OEM tank grips are hard to hold or have ineffective anti-slip pads, or they are too thin and uncomfortable. R2 SpeedTek has solved these problems — now riders can just focus on enjoying the ride!

Introducing the all-new R2 SPEEDTEK manufacturing process! This new process incorporates carbon fiber and plastic composites, delivering higher hardness and wear resistance, along with built-in textured finishes that maintain gloss and a tech look without maintenance. Compared to the older versions that required manual finishing and oiling for upkeep, the new process offers a major upgrade in both visual appeal and durability. This transformation is not just an aesthetic upgrade but a comprehensive breakthrough in manufacturing, cost, and quality. Every rider can feel R2 SPEEDTEK’s unwavering commitment to continuous improvement in quality and performance!

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※ The instruction manual, if included, will be in a foreign language.

※ Please note that the product specification may change due to manufacturer reasons.

※ Products such as electronic parts and transmission systems crucial to driving safety should be installed by professionals with specialized technical skills.

※ Delivery may be delayed due to importing.