Throttle Addiction was founded on supplying to coolest chopper parts and bobber parts to folks who build and customize their motorcycles. If you're looking for a chopper parts supplier, you found it. We're committed to providing you the best service, fastest shipping and quality parts for your chopper project. If you're building a Sportster, Knucklehead, Shovelhead, Triumph or XS650 chopper, we have you covered! Let us be your go-to supplier of motorcycle parts and accessories.