The best carbon fiber parts for the Yamaha YZF-R1S (2016–2018) are pre-preg, autoclave-cured replacements for the factory plastic bodywork — the front fender, side panels, ECU panel cover, and engine covers. Because the R1S shares its bodywork with the 2015+ YZF-R1, carbon parts molded for that R1 generation bolt directly onto the R1S, and the five upgrades below are the ones we recommend first.
Does the Yamaha R1S use the same bodywork as the standard R1?
Yes. Yamaha built the R1S (2016–2018) as the value version of the 2015+ YZF-R1, and it reached its price point through components you can't see — steel connecting rods instead of titanium, aluminum wheels instead of magnesium, and more cost-conscious hardware. The frame, fairings, fenders, and panels are dimensionally identical to the standard R1. Every carbon part listed below is molded for the 2015+ R1 and fits the R1S with no modification, using the stock mounting points.
What construction should you look for in R1S carbon parts?
Two things decide whether a carbon part looks right and lasts: how it's made and how it's coated. On the manufacturing side, look for 100% pre-preg carbon — fabric with resin pre-impregnated at a controlled ratio — cured in an autoclave under heat and pressure. Pre-preg autoclave parts come out void-free and consistently light, because there is no excess resin in the laminate. Hand-laid, wet-lay parts carry extra resin weight and vary from piece to piece.
Every Bestem part is made from 100% pre-preg Toray carbon fiber, autoclave-cured and metal-molded in matched-metal tooling — an aerospace-grade process, not wet-lay or resin-infused. This is the same autoclave + 100% pre-preg construction that premium European carbon makers such as Ilmberger built their reputation on; Bestem uses that same technology and adds a superior UV-resistant coating. Matched-metal molds are also why fitment is consistent: bolt holes land on the OEM mounting points, so installation is a straight swap with factory fasteners.
Do carbon fiber fairings turn yellow in the sun?
Most eventually do — sun-ray (UV) yellowing is the single most common defect riders see on carbon fiber fairings. UV breaks down a standard clear coat, which ambers and clouds over the weave; a typical OEM-spec clear coat is rated for roughly 1,000 hours of UV exposure.
Bestem parts use a proprietary UV-resistant clear coat engineered specifically to protect the carbon weave, rated to approximately 3,000 hours of UV exposure — about 3× longer than standard OEM coating before sun-ray yellowing. Because of that coating, every Bestem carbon part carries a lifetime warranty against UV (sun-ray) yellowing.
Which carbon fiber parts are the best upgrades for the R1S?
Front fender
The highest-visibility swap on the bike, and one that trims unsprung mass off the fork. The Yamaha R1 2015–2020 carbon fiber front fender in twill weave (SKU CBYA-R115-FFD-T) fits the R1S directly and replaces the stock plastic piece.
Upper side panels
These frame the intake and mid-fairing area, where carbon makes the biggest visual difference per dollar. The 100% carbon fiber upper side panels in twill (SKU CBYA-R115-SPNU-T) bolt on using the factory hardware.
Side panels (mid/lower)
Pair the uppers with the 100% carbon fiber side panels 2 in twill (SKU CBYA-R115-SPN2-T) to complete the flank of the bike in matching weave and finish.
Left side ECU panel cover
A small detail piece that cleans up a high-visibility zone on the left side of the bike. The carbon fiber left side ECU panel cover fairing in twill (SKU CBYA-R115-ECUC-T) is a quick, inexpensive install.
Small engine cover
The 100% carbon fiber small engine cover in twill (SKU CBYA-R115-EGCS-T) finishes the engine case area and adds a sacrificial layer over the stock case.
Why order R1S carbon parts from Bestem USA?
Bestem has been manufacturing carbon fiber since 2005 — more than 20 years — and supplies OEM carbon parts to car and motorcycle manufacturers, which is why the aftermarket line runs the same pre-preg, autoclave, matched-metal-mold process discipline. Every part listed here is stocked in Bestem's Atlanta, GA warehouse and ships daily, worldwide, with live phone support every business day if you want to confirm fitment for your specific R1S model year before ordering.
FAQ
Will 2015+ Yamaha R1 carbon parts fit my R1S?
Yes. The R1S (2016–2018) uses the same bodywork as the 2015+ YZF-R1, so all five parts listed above bolt directly onto the R1S using the stock mounting points and factory fasteners.
How long before carbon fiber fairings turn yellow?
With a standard clear coat, roughly 1,000 hours of UV exposure. Bestem's proprietary UV-resistant coating is rated to approximately 3,000 hours — about 3× longer — and every Bestem part carries a lifetime warranty against UV (sun-ray) yellowing.
Are Bestem carbon parts wet-lay or pre-preg?
Every part is 100% pre-preg Toray carbon fiber, autoclave-cured in matched-metal molds — the same aerospace-grade construction premium European brands such as Ilmberger are known for, plus Bestem's superior UV-resistant coating.
Do these parts reuse the stock mounting points?
Yes. Because they are metal-molded to OEM dimensions, the bolt holes align with the factory mounting points and you reuse the stock fasteners — no drilling or trimming.
Where do Bestem parts ship from?
All parts are stocked in-house at Bestem's Atlanta, GA warehouse and ship daily, worldwide. Live phone support is available every business day.