Biky Air 20
Age: 5-8 years
Height: 43-51 inches
Weight: 13.8 lbs (6.2 kg)
The Biky Air 20 weighs 13.8 lb (6.2 kg) without pedals, 14.2 lb with pedals. Two Wheeling Tots called it the lightest single-speed 20-inch bike in their test group, and Bikerumor named it Editor's Choice Kid's Bike 2025. Single speed with a gain ratio tuned to the age, front and rear Tektro hand brakes with short-reach alloy levers, freewheel with no coaster brake. Aluminum frame with a low step-through, full-coverage chainguard, solid front chainring, internal cable routing. For riders aged 5 to 8, 43 to 51 inches tall, with a 19.8 to 26.5 inch inseam. 90-day returns and complimentary shipping in the US.
- Aluminum Frame: Light frame, easy for a child to push and lift.
- Low Step-Through Frame: Easy to get on and off.
- Long Wheelbase: Stable, doesn't wobble.
- Low Bottom Bracket: Low center of gravity, more stable.
- Slim Rear Triangle: Feet clear the frame when pedaling.
- Ergonomic Saddle: Comfortable for longer rides.
- Narrow Q-Factor: Pedals closer together, more natural pedaling.
- Kid-Sized Crank Arms: Crank arms sized to the child, easier to pedal.
- Upright Handlebars: Upright position, straight back.
- Adjustable Handlebars: Bar height adjusts to the child.
- Kid-Sized Grips: Easy for small hands to hold.
- Quick-Release Seatpost Clamp: Adjust seat height without tools.
- Air-Filled Tires: Roll smoothly around town and the park.
- Reflective Sidewall Tires: Child is visible in the dark, safer.
- Schrader Valve Tubes: Schrader valve, pumps up with any pump.
- Freewheel (No Coaster Brake): No coaster brake, easier to start and stop.
- Optimal Gain Ratio: Gain ratio tuned to age, easy to pedal.
- No Training Wheels: Learns to balance right away.
- Dual Hand Brakes: Separate front and rear brakes.
- Short-Reach Brake Levers: Levers close to the bar, easy to pull.
- Alloy Brake Levers: Alloy, strong, won't break.
- Full-Coverage Chainguard: Chain fully covered, clean and safe.
- Solid Front Chainring: No holes in the chainring, no pinched fingers.
- Internal Cable Routing: Cables inside the frame, nothing to catch on.
- Covered Axle Bolts: Bolts don't stick out, nothing snags.
- Sealed Bearings: Sealed bearings in headset, bottom bracket and hubs, less maintenance.
- Brand-Name Components: Tektro, CST, KMC, ProWheel, MicroShift.
- Quality Lightweight Components: Made specifically for kids, not shrunk-down adult parts.
Weight: 13.8 lbs (6.2 kg)
Ideal Child Height: 43-51 inches
Inseam: 19.8-26.5 inches
From Frame to Finish, Built for Kids
The Biky 20 is designed for older and more experienced children, providing a smooth transition to more challenging and longer adventures.
Lightweight Frame
Simple Single Speed
Easy Seat Adjust
Reliable Brakes
Durable Wheels
Slim Fit Design
Protected Chain
Hidden Cables