Dirt Bike Parts And Accessories

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Dirt bike parts, whether they are performance oriented or parts to maintain your dirt bike, are something that every rider will buy at some point. Regular wear items such as oil filters, grips, tires, spark plugs, and air filters will need to be replaced, and these parts are available from both OEM and aftermarket suppliers.


In addition to purchasing parts to maintain their dirt bike, many riders also choose to modify their machines with dirt bike accessories, usually with aftermarket items that are designed to enhance the bike’s performance or to simply change its look. Some examples of dirt bike accessories include slip-on or full exhaust systems, wheels, triple clamps, seats, graphics, and suspension modifications such as a revalve.

Dirt Bike Engines

Dirt bike engines come in a variety of smaller-displacement sizes and in two different engine types (two-stroke and four-stroke), but they all share the fact that they are moving a piston up and down in a single cylinder to produce power. The two-stroke fires on every rotation of the crankshaft. This translates to instant power. Common dirt bike engine displacements for two-stroke dirt bikes are 50cc, 65cc, 85cc, 125cc, 150cc, and 250cc.


The counterpart to the two-stroke engine is the four-stroke. The four-stroke engine fires on every two rotations of the crankshaft. This typically provides more usable power throughout the rpm range, making it easier to manage than a two-stroke. Common dirt bike engine displacements for four-stroke dirt bikes are 50cc, 125cc, 150cc, 250cc, and 450cc.


Not all dirt bike engines from every manufacturer are created equal, which is one of the reasons you start modifying your dirt bike. Common dirt bike engine modifications include a full-race exhaust system, performance air filter, carburetor jetting or EFI tuning, different clutch plates, upgraded camshafts, and big-bore kits that increase the displacement of your engine.

        Dirt Bike Suspension

        Dirt bike suspension consists of an inverted fork attached to triple clamps that are mounted on the steering head on the frame and a shock, which is usually linkage-equipped, attached to the swingarm and frame. If your bike is older, or on the less expensive side, it might have a right-side-up fork. Both styles of forks usually feature compression and rebound adjustments, either on one or both fork legs. Another way to adjust your suspension would be to slide the fork tubes up or down in the triple clamps.


        A dirt bike shock normally has an adjustment for spring preload, low-speed compression, high-speed compression, and rebound. Check out our tips to improve your suspension on a budget or for setting up your suspension for different obstacles you encounter while riding.


        One of the most common dirt bike suspension modifications riders opt for is a revalve. These are done by changing the internal components of your suspension to fit your skill level and needs as a rider. If you want the best dirt bike suspension and aren’t afraid to spend the money, you can order an “A-Kit” suspension. Kit suspension is produced as consumer-grade versions of “works” suspension and is the closest thing to factory-level suspension a consumer can buy.

        Dirt Bike Chassis

        When referring to parts and accessories, a dirt bike chassis is any component that isn’t the engine or suspension. This means plastics, the fuel tank, clutch and brake levers, seat, grips, handlebar, footpegs, triple clamps, and skid plate. These dirt bike chassis parts are ways for riders to customize their bikes and modify it precisely for their size, riding style, and personal preference.