With their 6061 all-aluminum frames, the Skadar is already ahead of the pack. The Opus difference is apparent everywhere - in the alloy forks, proportional sized cranks and saddles, and light-action brakes kids can actually use. Add sturdy training wheels, a safety headset and dual brakes, and you've got kids' bikes that are miles ahead in safety and durability. Features: - Light and durable 6061 aluminum frame and fork, easy for kids to ride - Equipped with both hand and coaster brakes, stem pad, and no-spin headset for maximum safety - Aluminum wheels are light and strong, provide better braking and won't rust like steel wheels - Frame: Opus 6061 Aluminum - Fork: Opus 6061 Aluminum - Size: 16" - Brakes: HJ V-Brake and Coaster Brake - Brake levers: HJ Short Reach - Crank: Samox 1 piece - Chainrings: 28 - Bottom bracket: 9-piece steel - Cassette: Shimano 18 - Chain: KMC Z410A - Headset: Neco Anti-spin - Handlebar: Opus Junior 40mm rise - Stem: Zoom aluminum 60mm 30deg - Grips/Tape: Opus Kraton - Saddle: Opus Junior - Seatpost: Opus Junior - Wheels/Rims: Ace Aluminum - Hubs: Modus/KT - Tires: Kenda K-50 16 X 2.125 - Pedals: Resin flat - Weight: 20 lbs - Adjustable/removable training wheels - Stem protector/chainguard