Le Billet Fuel Cap | BMW R nineT

To choose an aftermarket fuel cap, check four points: exact compatibility with your motorcycle model, the material, the mounting system and the finish. The visual result and the machining quality should guide the final choice.Start by confirming the cap is designed for your specific motorcycle, as the fuel filler diameter and the locking system vary from one model to another. Then favour a premium material such as billet aluminium, machined from solid, which delivers a homogeneity and a finish far superior to cast parts. Check the mounting system: a kit supplied with its dedicated adapter, its hardware and its threadlocker guarantees a clean and durable fit. Finally, choose the finish to match the rest of the motorcycle.The Le Billet fuel cap we offer for the BMW R nineT meets these criteria with CNC machining and three available finishes.

You replace the stock fuel cap mainly for two reasons: to assert a visual signature on the tank and to bring a level of machining quality above what a stock part can deliver. It is one of the most visible details on a refined motorcycle.The stock cap is designed to meet industrial specifications and to go unnoticed. A premium aftermarket cap, machined from solid billet, becomes the opposite, a focal point for the eye. It shifts the overall perception: a motorcycle with a CNC machined cap does not read as a stock motorcycle, even with no other visible modification. It is a simple upgrade to carry out, with a visual return out of proportion to its installation cost.Le Billet answers this intent on the BMW R nineT: a premium machined part that changes how the tank reads.

This Le Billet fuel cap is compatible with the entire BMW R nineT range: R nineT Roadster, Pure, Scrambler, Urban G/S and Racer.When removing the stock cap, it is important to retain the original BMW seal, which will be reused with Le Billet. This precaution guarantees the fuel tank stays sealed once the new part is in place.For any compatibility check with your exact model year, our FCR Accessoires team is available on +33 5 49 62 03 26.

Fitting this cap is plug and play and takes a few minutes, with a standard Allen key and no modification to the tank. The kit contains everything needed for installation.The installation steps are as follows: 1. Place the motorcycle in a stable position and switch off the ignition. 2. Unscrew the original fuel cap, retaining its seal carefully. 3. Place the Le Billet machined adapter on the tank filler, aligning the seven mounting holes. 4. Secure the adapter with the seven TCHC M5x40 screws supplied, applying the supplied red Loctite to each thread. 5. Place the original seal back on the adapter. 6. Screw the Le Billet cap onto the adapter until fully tightened. The installation is deliberately straightforward, accessible to every rider without specific mechanical skills.

This fuel cap is made of aluminium machined from solid, fully CNC milled.Aluminium machined from solid means the part is cut from a single block of solid aluminium, milled by a computer-controlled machine. This technique delivers a homogeneity of material, a dimensional precision and a surface finish that no casting process can match. Both the cap and its adapter rely on this same premium machining method, which guarantees a perfect visual consistency between the two elements.It is this level of execution that led us to add Le Billet to our R nineT catalogue, in line with the high-end positioning of the motorcycle.

This Le Billet cap is available in three finishes: Black, Brushed and Gold.The Black finish offers a sober, radical look, ideal on an R nineT with an assertive style or on stripped-back builds. The Brushed finish delivers a matte, contemporary elegance that highlights the machining of the part under light. The Gold finish brings an exclusive touch, turning the cap into a true piece of technical jewellery on the tank, for the most demanding builds. All three finishes are built on the same billet aluminium base.The finish is selected directly on this product page, before adding to cart.