Hasa RSX Gen 2 Ultegra Di2 Road Bike wth with Carbon Wheelset

HASA RSX Aero Road Bike

 

 

Taiwan's Value Champion - The Pinnacle Achievement - Redefining What High-Performance Aero Road Bikes Should Cost
 

The HASA RSX Aero Road Bike brings professional-grade racing performance within reach, allowing more cyclists to experience true aerodynamic advantages. This is more than just a bicycle—it's a challenge to the traditional overpriced racing bike market.
 

Why Choose RSX?

Professional Performance, Accessible Pricing

A Shimano Ultegra Di2 12-speed electronic groupset alone costs $14,000-$16,000. The complete RSX build comes equipped with a full Ultegra Di2 system, carbon wheelset, ultra-lightweight integrated carbon handlebars, and other premium components, yet costs over $10,000 less than comparable builds from other brands.
 

This is HASA's promise: making top-tier performance accessible to everyone, not just the privileged few.
 

RSX Aero Design Philosophy
 

Speed Through Design

The RSX frame uses Japanese Toray T800 carbon fiber, with every tube shape carefully engineered to reduce drag. The aero tube profiles combined with fully internal cable routing push aerodynamic efficiency to its limits. This isn't superficial—it's aerodynamic advantage validated through wind tunnel testing and real-world riding.
 

The frame design perfectly balances stiffness and comfort while pursuing aerodynamic excellence. Exceptional pedaling stiffness ensures every watt of power efficiently converts to speed, giving you immediate frame response during sprints. Meanwhile, optimized carbon fiber layup provides the comfort needed for long-distance riding while maintaining stiffness, keeping you at peak performance even after 100-kilometer rides.
 

Premium Component Specification
 

Shimano Ultegra Di2 12-Speed Electronic Shifting System

Electronic shifting represents the pinnacle of modern road bike technology. The RSX features a complete Shimano Ultegra Di2 system, including crankset, shifters, front and rear derailleurs, and cassette. Every shift is precise and rapid, with the electronic system ensuring no adjustment needed over long-term use, allowing you to focus purely on riding. The 12-speed gear ratios provide more refined gearing options—whether sprinting on flats or climbing hills, you'll find the perfect gear.
 

Shimano Ultegra Hydraulic Disc Brake System

The complete Shimano Ultegra hydraulic disc brake system delivers powerful and consistent braking force. Rain or shine, flat or descending, you'll have confident braking control. The hydraulic system's precise modulation allows you to control braking force with finesse, giving you composure and confidence through high-speed corners.
 

38mm Carbon Fiber Thru-Axle Wheelset

The 38mm rim depth represents the golden ratio between aero performance and handling agility. This height provides excellent aerodynamic advantages without becoming difficult to control in crosswinds due to excessive rim depth. The carbon fiber construction is lightweight yet robust, while the thru-axle design provides higher stiffness and better power transfer efficiency. Whether facing flat sprints or varied climbing terrain, this wheelset delivers.
 

SLR Ultra-Lightweight Integrated Carbon Handlebar

The integrated carbon handlebar isn't just about aesthetics—it's a crucial element of aerodynamics. The integrated design reduces drag compared to traditional two-piece handlebars, while the ultra-light carbon fiber material reduces overall bike weight. The handlebar's ergonomic design is carefully calibrated to provide comfortable grip angles, preventing discomfort even during extended rides. The clean, professional appearance gives the entire bike a more competitive edge.
 

Masterful Craftsmanship
 

Taiwan Premium Advance Paint Technology

The RSX frame employs Taiwan's advanced paint application technology paired with premium German coating materials, creating an exceptional visual finish. The special protective surface layer not only shields the frame from scratches and environmental degradation but also maintains the frame's luster over time. This isn't ordinary paint—it's a professional multi-layer coating process.
 

New Cyber Blue Special Colorway

Cyber Blue is the RSX's signature color. This special finish presents unique visual effects from different angles and lighting conditions, shifting from deep blue to metallic cyan tones as the viewing angle changes. The perfect fusion of technology and aesthetics makes your bike stand out in the peloton while retaining the understated sophistication befitting a professional racing machine.

 

 

 

About HASA Bike

HASA may be relatively unfamiliar to Hong Kong cyclists, but the brand enjoys tremendous recognition in Taiwan as the benchmark for value, offering road bikes at 30-40% below comparable market alternatives. The brand has actually been deeply rooted in Taiwan's cycling industry for 30 years and is a regular presence at international bicycle exhibitions, controlling the entire process from frame design through to final assembly. HASA has also sponsored the UCI Continental team INTEJA, which has secured victories in numerous international competitions. The frames are manufactured using carbon fiber from renowned Japanese manufacturer TORAY.

 

Professional Size Fitting and Bike Fit Services

Unsure about sizing or want to ride more efficiently while avoiding injury? Welcome to learn about Jollymap's size fitting and bike fit services.