The Knucklebuster FacebookTweetPin Knucklebuster built by Speed City Cycle. The Knucklebuster was Best Chopper & Best in Show Winner at the Roadbike Metric Bike Show. FacebookTweetPin Related Posts 69 Brass Balls Bobber | Motorbike Flaming Red | Best Motorcycles Custom Chopper Motorcycle Beauty | Best Motocycles 2006 Big Dog Motorcycles K-9 | Best Motorcycles Nothing Like A Ride Riding High