Tri-Spark - Chicago Motorcycle Supply - Cooper Smithing Co. - Motorcycle Parts
At Tri-Spark we make ignition systems for old bikes like the Commando, Trident, Rocket 3 and Bonneville. We also stock ignition coils, voltage regulators and accessories. Our reputation for supplying a top quality product and technical support is growing fast. Plus we know how they work because we use them on our own bikes.