Le Rippled Fuel Cap | BMW R18

To choose a suitable fuel cap, check four criteria: compatibility with your exact motorcycle model, the material (favour lathe-machined brass or aluminium), the presence of a petrol-resistant seal, and a pressure management system. These four points determine the safety, durability and quality of the cap. In detail: compatibility depends on the thread, diameter and locking system specific to each tank. The material makes the difference on longevity, aviation-grade brass and machined aluminium resisting far better than plastic or zamak. The petrol-resistant O-ring prevents fuel leaks. Finally, a vent or valve system prevents overpressure in the tank. The Le Rippled fuel cap for BMW R18 meets these four criteria, with the addition of a signature ripple finish and a choice between gold and silver.

The original fuel cap is replaced for two reasons: to improve the aesthetics of the motorcycle and to gain in build quality. The cap is a visible and central element of the tank, and original models are often made of plastic or economical alloy. Aesthetically, replacing the cap with a machined piece immediately transforms the character of the motorcycle, particularly on customs and neo-retro builds. In terms of quality, a cap machined from aviation-grade brass offers better resistance over time, a superior grip and a premium finish that production caps do not match. On a motorcycle like the BMW R18, whose mechanical aesthetic is a central argument, the Le Rippled cap extends this finishing requirement.

The Le Rippled cap is compatible with BMW R18 motorcycles equipped with original footpegs. It is not compatible with versions equipped with floorboards, which have a different configuration. To check your configuration, observe the equipment of your R18: the presence of individual footpegs confirms compatibility. In case of doubt, contact our team before ordering with the references of your motorcycle for validation.

The Le Rippled cap directly replaces the original cap of the BMW R18, in a few minutes and without any particular tool. Installation is done in three steps. Step 1: remove the original cap from the tank. Step 2: check the presence of the O-ring on the Le Rippled cap. Step 3: position and screw the new cap onto the tank. The system is designed to fit without any modification to the original tank.

The vents and spring valve allow a controlled release of the pressure that accumulates inside the tank, preventing any risk of overpressure. Pressure rises naturally in a tank under the effect of heat or altitude variations. Without a release system, this overpressure could damage the tank or make opening the cap difficult. The Le Rippled cap incorporates a spring valve connected to three vents in the upper part, which guarantees safe operation in all conditions.

The gold and silver finishes are identical technically and differ only in their aesthetics. The choice depends solely on the livery of your motorcycle and the style sought. The gold finish, warm and assertive, brings a precious touch that particularly matches dark BMW R18 motorcycles and custom builds with a timeless spirit. The silver finish, more sober and contemporary, suits bright builds and R18 motorcycles with a refined mechanical aesthetic.