Elite Trials Engineering. Zero-Flex Braking Power.
The ξ /ksi/ cycling hydraulic rim brake system represents a breakthrough in bike trials engineering. Our core mission is to eliminate system flex, fluid leaks, and pad rattle—giving riders the absolute stiffest, most reliable braking performance possible.
Our specialized components are fully finalized, race-proven products actively ridden at the highest level of UCI competition by World Champions Jack Carthy and Alejandro Montalvo.
Optimized Product Breakdown
1. High-Rigidity Hydraulic Slave Cylinders
- Status: Fully Finalized & Production Ready.
- The Engineering: CNC-machined from premium aerospace-grade aluminum. Designed with ultra-tight internal tolerances to eliminate structural expansion under heavy braking loads.
- Compatibility: Features plug-and-play integration. Fully compatible with industry-standard 5mm nylon hydraulic hoses and all major trials master levers.
2. CNC-Machined Rim Brake Pads
- The Engineering: Machined from 7075-T651 aluminum with built-in O-ring tolerances to completely stop pad rattle.
- Sustainability: Features a fully refillable, eco-conscious design. Simply replace the pad material without discarding the premium aluminum backing.
3. Advanced Rim Friction Formulas
- The Engineering: Formulated from local Greek pine rosin to provide instantaneous wheel lock.
- Options: Available in traditional Rosin Blocks or our mess-free, high-precision Liquid Rosin Markers for fast application between competition sections.
The Evolution of the ξ /ksi/ Ecosystem
While our individual slave cylinders, pads, and rosin products are fully complete and commercially available today, the ξ /ksi/ ecosystem continues to expand. Our long-term vision includes the development of a proprietary master lever to offer a complete, unified out-of-the-box brake kit.
Today, you can build the ultimate custom “hybrid” brake system by pairing our ultra-stiff hardware with your favorite lever setup.
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Professional Documentation & Maintenance Protocol
To ensure your hardware delivers maximum stopping power section after section, we have developed a comprehensive ξ /ksi/ cycling System Manual & Service Protocol. This technical guide provides step-by-step instructions on system installation, optimal component alignment, bleed procedures, and routine maintenance.