Motorcycle Timing Gears & Chains

Chain drive in the valvetrain is a time-tested solution featuring high reliability and efficiency. Consisting of a metal chain and gears installed on the cam and crankshaft, this mechanism can be found in many American and imported motorcycles and cars, both in modern ones and those made a couple of decades ago. The main enemy of such a system is friction. A chain is a very strong part that usually serves long, but over some mileage, its numerous links wear out, and it becomes somewhat longer.

Naturally, this negatively affects valve timing, as the valves open and close later than needed. A chain tensioner used in many constructions partly mitigates this effect, but its abilities and lifespan are also limited. Removing some links to shorten a chain could help in other systems, but when it comes to the valvetrain, it's too accurate for such an approach and needs a new part with the same number of rollers. As for gears, they also wear out, although they normally serve longer than chains.

Over many thousands of miles, gear teeth gradually get thinner and add to the chain's wear. Finally, a loose chain can jump over a couple of teeth, which is dangerous for the motor, though you're likely to notice a drop in performance caused by the faulty tensioner or stretched chain much earlier. Proper lubrication plays a crucial role in this mechanism as it minimizes friction; the timing chain in some well-kept motors can serve as long as the engine itself. However, soon or late, any parts may need replacement. Our online store has gathered a wide assortment of motorcycle timing gears & chains, and if you need a strong and durable product made of quality steel, welcome to our website.