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Colony Machine

Colony Machine

Colony Machine is a trusted name in Harley Davidson hardware kits, fasteners and precision engineered restoration components. Known for exact OEM style fitment, Colony produces bolts, washers, studs and mounting kits that match or exceed factory specifications. Their hardware is widely used in engine rebuilds, drivetrain service and complete motorcycle restorations thanks to consistent quality and accurate machining. From Twin Cam to Sportster and Shovelhead models, Colony parts offer a reliable solution for maintaining factory level performance and appearance.


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Colony Machine – Harley Davidson Hardware Kits, Fasteners & Restoration Components

Colony Machine has been a leading supplier of Harley Davidson hardware and fastener kits for decades, earning a strong reputation among builders, mechanics and restoration experts. Every component is produced with strict quality control, offering precise fitment that replicates or improves upon original factory hardware. Their large catalog includes bolt assortments, acorn nuts, engine studs, brake hardware, pulley mount kits and many other Harley specific fasteners, making them a top choice for riders who want dependable components that install easily and stand up to long term use.

The brand supports a wide range of Harley platforms including Twin Cam, Milwaukee Eight, Sportster, Shovelhead, Panhead, Evolution and classic K model engines. Popular offerings include primary cover bolt kits, rocker cover bolts, rear pulley hardware, exhaust stud and nut sets, magnetic oil tank drain plugs, gas tank mount kits and head bolt sets. Riders can choose from chrome, cadmium or parkerized finishes to match a period correct restoration or upgrade to a cleaner, more polished look. Their consistent sizing and machining accuracy make them a trusted option for avoiding alignment issues and ensuring proper torque across all components.

Colony Machine products are especially valuable for restoration, repair, and long term maintenance because they remove the uncertainty that comes with old or mismatched hardware. Their emphasis on material strength, thread precision, and manufacturing consistency ensures secure installation whether you are rebuilding a Shovelhead top end, replacing a Sportster rocker shaft plug or updating a touring bike primary cover. With thousands of Harley dedicated fasteners available, Colony remains one of the most reliable sources for high quality hardware that keeps motorcycles running strong and looking factory correct.

Pro Circuit has built a global reputation as one of the most influential brands in motocross and off-road motorcycle performance engineering. The company designs race-proven components that enhance engine output, throttle response and overall riding performance. Their product lineup includes advanced motorcycle exhaust systems, titanium silencers and precision-machined performance parts used by professional race teams and enthusiasts alike.

 

Among the brand’s most recognized products are the Ti-6 Pro titanium exhaust systems, T-6 stainless steel exhaust systems and Works Pipe performance expansion chambers. Riders also rely on R-304 silencers, spark arrestor silencers and Platinum series exhaust pipes designed to optimize power delivery across various engine platforms. In addition to exhaust solutions, Pro Circuit manufactures a range of racing components including clutch springs, water pump covers, linkage arms, axle blocks and throttle tubes that support durability and precision performance in competitive riding conditions.

 

Beyond exhaust technology, Pro Circuit provides performance-focused upgrades that enhance both engine reliability and chassis control. Products such as ignition covers, shift levers, clutch covers and fuel mixture screws help riders fine-tune their machines for optimal efficiency and responsiveness. Whether installing a motocross performance exhaust, upgrading engine hardware or improving throttle control with precision components, Pro Circuit continues to deliver race-developed solutions trusted by professional riders and off-road enthusiasts worldwide.