LEGO part 64781 - Black Technic, Gear Rack 1 x 13 with Axle and Pin Holes at BrickScout
LEGO MOC 13 axle lowboy trailer by Locotone | Rebrickable - Build with LEGO
Amazon.com: Domani Technic Motorcycle Building Kit for Kawasaki Ninja 400 Superbike, Build A Model Motorcycle, MOC Racing Motorcycle Building Blocks Compatible with Lego Motorbike (862Pcs), 31.5 x 13 x 19CM : Toys & Games