Triumph TR2-5 Brakes
The TR2 through TR5 models represent the golden era of Triumph sports cars, each with distinct brake system requirements. From the early TR2's simple drum brake setup to the TR5's sophisticated disc brake system, we stock the complete range of brake components to keep your classic TR running safely.
What brake systems were fitted to TR2-5 models?
The brake system evolution across TR2-5 models shows significant development in stopping power and technology. The TR2 and early TR3 models (to TS13045) came with drum brakes all round using the Lockheed system, providing adequate stopping power for their lighter weight and lower performance.
Later TR3 models (from TS13046), TR3A, and TR4 models received front disc brakes with Girling 2-pot calipers, marking a major improvement in braking performance. The TR3A specifically required different caliper assemblies from chassis TS56337 for wire wheel models and TS56384 for disc wheel versions.
TR4A, TR5, and TR250 models featured the most advanced brake systems of the early TR range, with improved disc brake setups and enhanced brake servo assistance. The TR5's powerful 6-cylinder fuel-injected engine necessitated particularly effective brake components to handle the increased performance.
How do I identify the correct brake components for my TR model?
Chassis number identification is essential for TR2-5 brake parts, as specifications changed frequently during production runs. Early TR2 models to TS5442 (1953-55) used specific drum brake components, and later models received updates and improvements.
TR3 models show the most variation, with significant changes at chassis TS13046 when front disc brakes were introduced. The TR3A continued this system but with chassis-specific variations at TS56337 and TS56384, depending on wheel type fitted.
TR4 models with wire wheels require different brake components from those with disc wheels, with the changeover occurring at chassis CT4690 for wire wheel models and CT4388 for disc wheel versions. The TR4A standardised the brake system across all versions.
What uprated brake options are available for TR2-5 models?
Modern brake upgrades transform the stopping power of early TR models and maintain their classic appearance. Four-pot caliper conversion kits provide dramatically improved braking performance compared to the original 2-pot systems.
These uprated systems typically feature vented brake discs that run significantly cooler than solid discs, making them ideal for enthusiastic driving or competition use. Cross-drilled disc options offer further cooling benefits for demanding applications.
For TR2 and early TR3 models with drum brakes, disc brake conversion kits allow owners to upgrade from the original Lockheed drum system to modern disc brakes. These conversions use appropriate 2-pot calipers that maintain the classic appearance and provide modern stopping power.
How do I maintain my TR2-5 brake system properly?
Regular brake system maintenance keeps your early TR safe and roadworthy. Brake fluid changes every two years to prevent internal corrosion and maintain proper brake operation, particularly important in older brake systems with steel brake lines.
Caliper maintenance requires attention to seals and pistons, with rebuild kits available for all TR2-5 brake calipers. The seal between caliper halves and individual piston seals should be inspected during any brake work, as these components are critical for safe brake operation.
For models with original drum brakes, wheel cylinder condition affects brake performance significantly. Regular inspection of brake shoes and adjustment of brake drums ensures optimal stopping power from these earlier braking systems.
Check out our comprehensive TR2-5 parts selection for all your restoration needs, or explore our brake upgrade options for enhanced performance. Our Triumph restoration guide provides valuable advice for maintaining these classic British sports cars.