Talk to the team
Contact
Racers answer these. Include your Radical model and chassis number when you have them.
Out of stock, or not listed?
Email shop@crownconceptsusa.com with the part number and your Radical model and chassis number. Email is the fastest route for stock and lead time questions: it puts the part number in writing in front of the person who places the factory order, and you get a written answer back. Backordered parts typically run two to four weeks from the factory, and we will confirm price, lead time and shipping before anything is charged.
Where we are
Crown HQ
3930 W Costco Dr
Tucson, AZ 85741
United States
We ship across the United States and internationally, so you do not need to be near Tucson to order. Visiting in person is welcome, but please call ahead so the right person is on site.
Hours
Monday to Friday, 7:30 am to 4:30 pm Mountain Time. Arizona does not observe daylight saving, so we are on MST year round. Messages sent outside those hours are answered the next working morning.
Parts here, racing next door
Crown Speed Shop is the parts counter. Genuine Radical parts and spares, Crown made components, and the gear, shipped wherever you are.
The racing itself lives with Crown Concepts. Crown builds and runs race programmes across North America in prototypes and GT, from an arrive and drive weekend through to running a full season under your own name, plus Radical Cup entries, authorized Radical service and trackside support. If your question is about running a car rather than buying a part for one, start at crownconceptsusa.com/crown-racing or say so in the form below and we will route it.
New to Crown?
Factory Radical parts, race support, and practical help from people who use this equipment at the track.