REC MX Billet Engine Components are currently race tested by professional riders:

2026 AMA Monster Energy Supercross

2025 Pro Motocross
450
#37 Coty Schock YZ450F
#86 Mitchell Harrison KX450
250
#63 Hunter Yoder KX250
#62 Mark Fineis KX250
#75 Gage Linville KTM250SXF
#92 Maximus Vohland YZ250F
#125 Luke Neese CRF250R
#142 Crocket Myers KTM250SXF
#192 Jack Cambers KX250
#784 Alexander Fedortsov YZ250F

WMX
#1 Lachian (La La) Turner YZ250F
#469 Jamie Astudillo KTM250SXF

2024 MXGP WMX
#1 Courtney Duncan KX250

2024 MXGP MX2
#319 Marc Quentin Prugnieres KX250

2025 Loretta Lynn Amateur National +30 Champion
#14 Brandon Haas YZ450F

2025 Loretta Lynn Amateur National Women’s Champion
#1 Lachian (La La) Turner YZ250F

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REC MX LLC was established in 2004 as a design and consulting company, designing motocross and ATV components for many other manufacturers. We’ve designed numerous parts for motocross bikes and ATVs, including aftermarket billet aluminum big-bore cylinders, custom forged pistons, exhaust components, suspension components, engine covers, carburetor parts, bike controls, carbon fiber parts, and plastics.  Our founder is not just a motocross racer, but also a mechanical design engineer with over 20 years professional experience.  He has designed parts not just for Motocross and Supercross but also MotoAmerica, Le Mans, NASCAR, Trophy Trucks, Monster Trucks, Drag Racing, and worked with OEM’s like Yamaha, Toyota, and Tesla.  Throughout the years we’ve made parts for our own bikes, and found we could improve on some existing parts. When people started asking where to buy our one-off parts, we decided we should ramp-up production and make them available to the public. Each component is design engineered in a 3D CAD system and when required tested in computer simulated FEA (Finite Element Analysis) software, before prototypes are ever made. We then thoroughly test all parts with top professional riders from around the world. Before parts are sold to the public, each part is dimensionally and visually inspected for quality. All REC MX parts are made in the USA and then race tested worldwide. We already have national distribution and we are actively pursuing additional channels to sell REC MX parts.

If you need something custom, REC MX offers design and consultant services specializing in 4-stroke MX and ATV components. We offer 3D CAD design, assemblies, FEA analysis, engineering prints, and rapid prototyping. Please contact us for more info.

REC MX Billet Engine Components have been used and race tested in the AMA Supercross, AMA Arenacross, and AMA Motocross National series, FIM GP’s, Australian Supercross and Motocross, French Supercross and Nationals, Supermoto, Enduro, and Cross Country races by professional riders and race teams like: