Master Mechanic and Crew Chief Gary Dean is officially certified by Ducati and has built custom Ducati Penigale V4Rs for both professional racing and track days. Check out our photos of custom builds.


Which ever Yamaha you own, Speed Demon can make it go faster and make it look better. Check out our custom builds and other bikes we have worked on.


This ZX10 is a custom builtĀ 


We love to work on all bikes, and especially this ol’ jigster. More Suzuki photos to follow.


This 2015 Respol came in and we added an Arrow exhaust and then flashed theĀ  ECU. We also added a fender eliminator kit, and brake and clutch lever. Now it sounds great and goes faster. More Honda Pics to come.


Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

throw out the tricycle

Gary Dean has been a crew chief for professional motorcycle racing teams for over 15 years. He now brings his talent to the club racing circuit. Here at Speed Demon Motorcycles, we build superior race bikes for both club level and professional level riders, as well as maintaining optimum performance on street bikes.

Play Video

Newsworthy Stories


Check out the KWR team in the news. Click the link to hear about how great we are.

Visit Us

  • 26846 Oak Ave, Santa Clarita, California 91351
  • speedddemonmotorcyles@gmail.com
  • (818) 679-1489
Add to cart