AMERICAN CHOPPER-Front fork and Rear wheel
https://drive.google.com/open?id=1BZ7rgK1HruZy53TVGpAN0JoQJSOpTOlk
FRONT FORK

A motorcycle fork connects a motorcyles front wheel and axle to its frame, typically via a yoke, also known as a triple clamp, which consists of an upper yoke joined to a lower yoke via steering stem, a shaft that runs through the steering head, creating the steering axis.
REAR WHEEL

To model Rear wheel I use features like Boss Extrude, Cut extrude, circular pattern, revolve and cut Revolve. Wheel has Rim, Rotor, Caliper, Sprocket, and Tire.