Speedy Siegl Racing

Add Lightness

Custom Parts - Engine Builds - Complete Bikes

Speedy Siegl Racing not only makes unique, lightweight parts, but also commissioned custom builds. With over 15 years experience creating one-of-a-kind vintage and modern motorcycles from the ground up, I want to help build your dream bike. I have experience building all varieties of performance engines, brakes, suspension, exhaust, and electrical systems for street, track, trail, and motocross. Lets talk.

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Ducati 900SS - Isaac Siegl

The Thorn - Twinline Motorcycles (Ian Halcott, Jeff Tower, Isaac Siegl)

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2017 Triumph Thruxton custom - Isaac Siegl

Speedy Siegl Racing RD350 TZ replica trackday.jpg

Yamaha TZ350 replica - Isaac Siegl

Yamaha RD350 - Twinline Motorcycles (Ian Halcott, Isaac Siegl)

Speedy Siegl Racing Yamaha DT1MX custom built vintage trail bike

1971 Yamaha DT1AZ enduro - Isaac Siegl

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2000 Husqvarna TE610 retro-supermoto - Isaac Siegl