Carbon fiber side panels for the Ducati Streetfighter V4 replace the OEM plastic covers around the tank, chassis, and heel area with dry-fit-accurate carbon parts that cut weight and add a factory-grade weave finish. Bestem side panels fit 2020-2025 Streetfighter V4 and V4 S models, use aerospace pre-preg carbon, and carry a lifetime warranty against sun-ray (UV) yellowing thanks to a proprietary UV-resistant coating.
What carbon fiber side panels are available for the Streetfighter V4?
"Side panels" is a broad term riders use for several distinct pieces on the Streetfighter V4. The most requested carbon replacements are:
- Tank cover / side tank panels — the large panels flanking the fuel tank, one of the most visible surfaces on the bike.
- Main chassis / frame cover — the panels that dress the trellis-style frame section.
- Heel guard covers — the smaller panels at the rider's heel/rearset area.
- Front fender — often bundled into a full carbon refresh, though technically not a side panel.
Each part is molded to match the OEM contour so it bolts to the existing mounting points without trimming or reworking clips.
Which years and models do these panels fit?
Bestem carbon side panels are cut for the 2020-2025 Ducati Streetfighter V4 and V4 S. Several parts share tooling across the wider Panigale/Streetfighter V4 family, so fitment often extends to the 2018-2024 Panigale V4/V4 S and 2022-2025 Streetfighter V2 depending on the specific piece. Always confirm the year range listed on the product page before ordering.
Key panels to start with:
- Streetfighter V4 / V4 S Carbon Fiber Tank Cover — the side tank panel most riders mean by "side panel."
- Main Chassis Frame Cover — dresses the frame section on 2020-2024 Streetfighter V4/V4 S.
- Heel Guard Cover (Matte) — fits 2020-2025 Streetfighter V4/V4 S.
What material and weave are the panels made from?
Bestem panels are built from pre-preg carbon fiber — resin-impregnated sheets cured under heat and pressure — rather than hand wet-lay. Pre-preg yields a consistent resin-to-fiber ratio, fewer voids, and a lighter, stronger panel than wet-lay construction.
Weave and finish options vary by part:
- Twill weave (2x2) — the diagonal checkerboard pattern most associated with premium carbon.
- Plain weave — a tighter, symmetrical grid.
- Gloss or matte clear coat — gloss deepens the weave contrast; matte gives a stealth, OEM-track look.
For example, the front fender is offered in twill glossy for buyers matching a full twill build.
How much weight do carbon side panels save?
Weight savings depend on the panel. Individual covers like heel guards save modest grams, while the larger tank and chassis panels deliver the most noticeable reduction because they replace bigger plastic sections. Across a full set of carbon side panels, riders typically shed several hundred grams versus OEM plastic — meaningful for track-focused builds where unsprung and high-mounted mass matters.
Do carbon fiber side panels turn yellow in the sun?
Standard carbon clear coat is prone to UV yellowing — the coat ambers and clouds, dulling the weave over time. This is the single most common defect riders report on carbon fairings and panels.
Bestem uses a proprietary UV-resistant coating engineered to protect the carbon weave from sun-ray yellowing. It withstands roughly 3,000 hours of UV exposure versus about 1,000 hours for standard OEM clear coat — 3x longer protection.
Because of that coating, every Bestem carbon panel carries a lifetime warranty against sun-ray (UV) yellowing. If you park your Streetfighter outdoors or ride in strong sun, this is the difference between panels that stay black years from now and panels that go amber.
Why buy Bestem carbon panels?
Bestem has manufactured carbon fiber since 2005 — over 20 years — and supplies OEM carbon parts to car and motorcycle manufacturers. That manufacturing background is why fitment is precise and the UV coating is engineered in-house rather than sourced off-the-shelf. All parts are stocked in our Atlanta, GA warehouse and shipped daily, worldwide, with live phone support every business day.
FAQ
Do Bestem side panels fit the Streetfighter V4 S?
Yes. Bestem carbon side panels are cut for both the Streetfighter V4 and V4 S, generally covering model years 2020-2025. Confirm the exact year range on each product page since some parts share tooling with the Panigale V4 and Streetfighter V2.
Are the panels pre-preg or wet-lay carbon?
Bestem panels are made from pre-preg carbon fiber cured under heat and pressure, which gives a consistent resin ratio, fewer voids, and a lighter, stronger part than hand wet-lay construction.
Will the carbon panels yellow over time?
Bestem's proprietary UV-resistant coating withstands about 3,000 hours of UV exposure versus roughly 1,000 hours for standard OEM clear coat. Every panel carries a lifetime warranty against sun-ray (UV) yellowing.
Can I choose gloss or matte?
Yes, many panels are offered in gloss or matte finish and in twill or plain weave. Gloss deepens the weave contrast while matte gives a stealthier, track-style look.
Do the panels require modification to install?
No. Each panel is molded to the OEM contour and uses the existing mounting points, so no trimming or clip rework is required for a direct fit.