R&R Billet Aluminum Connecting Rod Set – Norton Commando 750 850 Atlas 650 (068021)

R&R Billet Aluminum Connecting Rods for Norton Commando

Norton Commando billet connecting rods by R&R Racing Products are the ultimate bottom-end upgrade for any Norton twin engine. Whether you are rebuilding a tired 750, freshening an 850, or building a race motor, these rods deliver unmatched strength and reduced weight.

Upgrade your Norton Commando engine with R&R Racing Products billet aluminum connecting rods — the gold standard for performance Norton builds. Manufactured in Punta Gorda, Florida, these CNC-machined rods are a direct bolt-in replacement for the original forged steel connecting rods that are prone No small end bushings requiredto fatigue failure in high-mileage and high-performance applications.

Why Billet Aluminum Connecting Rods?

Factory Norton connecting rods, while adequate when new, develop fatigue cracks over decades of use. R&R billet aluminum connecting rods eliminate that risk with modern aerospace-grade material and precision CNC machining. The reduced rotating mass improves throttle response, lowers vibration, and lets your Norton rev more freely — critical advantages for café racer, hot street, and racing engine builds.

Specifications

Ideal paired with forged pistons
No small end bushings required
R&R billet aluminum connecting rods eliminate that risk Norton Commando billet connecting rods are specifically engineered for high-performance applications.
• CNC-machined from premium 7-series billet aluminum — up to 30% stronger than standard billet
• Cold extruded under 2,000+ tons of pressure for consistent grain flow and density
• Ultrasonically tested material for zero internal defects
• Precision-honed big end bores with serrated (Circle-Loc) cap faces for perfect alignment
• 3/8″ ARP 2000 rod bolts — 190,000 PSI tensile strength
• Weight-matched pair for smooth, balanced operation
• Bushless small end — runs gudgeon pin directly in aluminum with generous oil chamfers
• Torque setting: 50 lb-ft

Fitment

Direct replacement for Norton part numbers 06-4896 and NM25369. Fits all Norton twins including:

• Norton Commando 750 (1968–1974)
• Norton Commando 850 and Mk3 (1973–1975)
• Norton Atlas 750
• Norton 650SS
• John Player Norton (JPN)

No small end bushings required. Drops straight into any standard or overbored Norton twin engine. Ideal paired with forged pistons and a balanced crankshaft for a complete bottom-end rebuild.

Made in the USA by R&R Racing Products. In stock and ships from Fair Spares New England.