Alcon CRB304/28-41/44LL Advantage Radial Mount 4-Piston B-Type Brake Caliper Left Leading

The Alcon CRB304/28-41/44LL is a high-performance, 4-piston radial mount B-type brake caliper from Alcon's Advantage Range, designed for demanding motorsport applications. This is the Left Leading (LL) position caliper, featuring differential piston diameters of Ø41.3mm / 44.5mm and compatibility with 28mm disc thickness.

Engineered from aerospace-grade aluminium alloy, the CRB304 delivers an exceptional strength-to-weight ratio while providing the consistent, firm braking performance required in rally, touring car, and general race competition. The radial mounting design ensures maximum caliper rigidity, translating directly to a firm, precise brake pedal feel.

Key Features:

• Radial mount design for maximum rigidity and firm, consistent pedal feel
• Differential piston diameters (Ø41.3mm / 44.5mm) to minimize pad taper wear
• Aluminium pistons as standard; stainless steel pistons available as an upgrade to reduce heat transfer to brake fluid
• 2 kg anti-knock back springs for consistent pad contact and improved response
• Hard stainless steel wear plates for long-term caliper body protection
• B-Type pad shape — compatible with a wide range of friction materials from major manufacturers
• Pad retainer bolt and sleeve system for straightforward pad changes
• Fluid inlet: 3/8-24 UNF (-3) male
• Disc thickness range: 25.4 – 28mm
• Dry weight: 1.9 kg (4.19 lbs) excluding pads

Typical applications include rally front or rear axle use, single-seater racing, saloon car rear axle, and hillclimb. The CRB304/28-41/44LL is sold as a single caliper in the Left Leading orientation and is part of Alcon's proven Advantage Range, trusted by professional motorsport teams worldwide.