Your Two-Stroke Parts Specialist
Highly engineered components, engine conversion kits, and everything else for your two-stroke build
Factory Level Engineering
We use the same tools and processes as any factory level or OEM program
Maxima Lubricants
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What We're Known For...
Exceptional attention to detail, and those hard to find parts!
Shop Our Complete Engine Kits
Ryan Surratt aboard our shop CR500 at the 2026 Two-Stroke Nationals!
TESTED BY KAPLAN CYCLES
ENDORSED BY IVAN RAMIREZ
FEATURED IN MOTOCROSS ACTION MAGAZINE
Masters of Our Craft
Every TSO product and service is developed using real-world testing, modern engineering tools, and hands-on build experience.
"It's a bolt-in solution, no cutting of the frame, no modifying... the only one of its kind in the world today."
Ken Kaplan
Kaplan Cycles on the 2024 KX500
"This bike is truly a dream come true and absolutely rips the hill climbs. Will be a customer for many years to come."
Ivan Ramirez
On his steel frame KX500 build
"I'm amazed by the quality and design detail that went into these covers. So much so that I purchased the rest of their CR500 parts once they arrived!"
Keith Mahoney
From his CR500 clutch cover purchase
San Diego, California
Unit G
Oceanside, CA 92056
(707)-813-1560
luke@twostrokesonly.com
Monday - Friday, 7:00 to 4:00
Saturday-Sunday, Closed
