Transport your board in style with MBB Moped Racks-the ultimate accessory for riders who refuse to leave their gear behind. Engineered with our signature quick-release bars and premium aluminum-stainless construction, these racks mount seamlessly to tubular cargo systems found on most mopeds, scooters, and moped-style e-bikes like RadRunners and Super 73s. Snap bars together for boards up to 8 feet, or spread them apart for longer SUPs and surfboards. Built tough for coastal conditions and tested up to 30 mph, they&';re your ticket to beach runs, road trips, and endless adventures. One-button release means zero fuss when you&';re ready to ride free. Clamp Block sizes in the kit are now: Small: 6mm-12mm (1/4" to 1/2") Medium: 12mm-19mm (1/2" - 3/4") Large: 16mm - 28mm (5/8" - 1 1/8") Installation In addition to the Installation Video below, you can also check out the printed instructions that come with each of the racks: Moped Rack Instructions