JB POWER (BITO R&D) COSWORTH PISTON KIT fits GSX1100S KATANA

Large-capacity air-cooled performance engineered with COSWORTH precision.

The JB Power (BITO R&D) COSWORTH Piston Kit is a premium forged big-bore upgrade developed for the legendary GSX1100S Katana, increasing displacement to an impressive 1258cc while delivering outstanding durability, throttle response, and high-performance reliability.

Built for serious Suzuki performance enthusiasts demanding more from the iconic Katana platform.

🔧 PRODUCT DETAILS
Brand: JB Power (BITO R&D)
Series: COSWORTH Piston Kit

Specifications:
✔️ Bore Size: 78mm
✔️ Displacement: 1258cc
✔️ Compression Ratio: 11.0:1
✔️ Pin Diameter: 18mm

Includes:
✔️ Forged Pistons
✔️ Piston Pins
✔️ Piston Rings
✔️ Circlips
✔️ Head Gasket
✔️ Base Gasket

✔️ High-rigidity forged piston construction
✔️ Ultra-lightweight design
✔️ Precision-engineered performance upgrade
✔️ Increased torque and acceleration
✔️ Built for high-performance air-cooled Suzuki engines

🔥 WHY UPGRADE?

This COSWORTH-developed piston kit is engineered to maximise displacement and performance while maintaining reliability under demanding riding conditions.

Benefits include:
✔️ Increased engine capacity to 1258cc
✔️ Stronger torque throughout the RPM range
✔️ Improved acceleration and engine response
✔️ Lightweight piston design reduces rotating mass
✔️ Excellent durability for tuned engines

Perfect for high-performance street, restoration, and custom Katana builds.

🏍️ FITS MODELS

SUZUKI GSX1100S KATANA

⚠️ Liner replacement required for installation.

(Always confirm compatibility before purchase)

⚠️ IMPORTANT NOTES
Professional engine machining and installation strongly recommended
Cylinder liner replacement required
Images are for reference only and may differ from actual product
This item cannot be cancelled, returned, or exchanged after order placement
Instruction manual, if included, will be in Japanese
Specifications may change from manufacturer without notice

⚔️ FINAL WORD

BIG BORE • COSWORTH ENGINEERING • KATANA PERFORMANCE

Built for riders chasing serious air-cooled Suzuki power.