About Crown Speed Shop

Crown Speed Shop is the online parts counter for Crown, an authorized Radical Motorsport dealer. We supply genuine Radical parts and spares, parts we design and build in-house for Radical cars, and Crown apparel. Orders ship from our shop in Tucson, Arizona.

Cars we support

We carry parts for the Radical SR3 RSX, SR3 XX, SR3 XXR, SR10 and RXC. Parts that fit every SR3 generation are grouped under Universal SR3.

You can also shop by system, or work down the full Radical parts index: powertrain, suspension, brakes and wheels, bodywork, cooling, fuel system, electrical, chassis, steering, and more.

Finding a part by number

Radical factory part numbers look like 7M05/008 or EX0225. A trailing suffix gives material or finish: /C is carbon fibre, and /G is gel coat with the digit as the colour, so /G1 is white, /G2 grey and /G3 black. Our SKUs add a supplier prefix: RAD- for Radical factory parts and CRW- for parts Crown builds in-house. Radical part 7M05/008 is listed here as RAD-7M05/008. There is a fuller guide to Radical part numbers.

Search by the part number, with or without the slash, or by what the part is called. Every product page lists its part number, manufacturer, fitment and assembly. If you cannot find something, send us the number and we will look it up.

Parts we make ourselves

Some things the factory does not offer, or we found a better way to do. Our Crown-made parts include pedal box extensions, heel stops, billet spacers, brake duct block-off screens, steering rack stiffeners, chassis tabs, and wing and splitter sub-assemblies.

How ordering works

• In stock - held on the shelf in Tucson and normally shipped within 1 to 3 business days. See what is in stock now.
• Available to order - sourced from Radical Motorsport in the UK, typically 2 to 4 weeks. Lead times are confirmed with your order.
• Price on request - the part is real and orderable, but priced on quote rather than listed. Contact us and we will confirm price and lead time.
• Freight items - bodywork, noses, splitters, engines and gearboxes are professionally crated and quoted individually before anything is charged.

Shipping and returns

We ship within the United States. Outside the US, contact us and we will quote shipping for your order. Most items can be returned within 30 days of delivery, uninstalled and in their original packaging, with a return authorisation from us first. Full details are in our shipping policy and refund policy.

About Crown

Crown runs two divisions. Crown Racing campaigns and supports race cars, including authorized Radical Motorsport service. Crown Customs builds commissioned road and competition cars. This store is the parts side of that work, which is why the catalogue reflects what actually goes on the cars rather than a generic listing.

Talk to us

Call +1 (520) 900-7586 or email shop@crownconceptsusa.com. Include your Radical model and chassis number where you have them, and the part name or number. You can also use the contact form.