Product Highlights
5-8 years
3'9" – 4'9"
< 5 minutes from box to ride
NABIIS - Mark3 Pro
The Nabiis Mark3 Pro is a true 20-inch powerhouse for young mountain bikers. Weighing in at 25.9 lbs (11.76 kg) , it balances rugged trail capability with the lightweight agility needed for kids aged 6-8 to conquer climbs and descents.
Best With
Fast Delivery
365 days warrantty
Free Returens
30 days money back
Size Info
Wheel Size: 16 in
Ideal Child Height: 39.4" to 49.2" (100 - 125 cm）
Age Range: 4 - 6
Min. Leg Length: 18.7 inches
Wheelbase: 27.6 in / 700 mm
Handlebar Height: 23.6 in / 600 mm
Q Factor: 138 mm
We highly recommend you using our Bike Finder tool. It’s an interactive tool we built specifically for our bikes to help you choose the perfect size for your kid based on their height and age.
Measurements
Weight: 12.3 lbs (5.60 kg)
Minimum Saddle Height: 19.7 in / 500 mm
Maximum Saddle Height: 23.6 in / 600 mm
Gain Ratio: 2.8 (28T / 16t)
Max Tire Width: 1.75 in
Product Highlights
5-8 years
3'9" – 4'9"
< 5 minutes from box to ride
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Refund Policy
We want to make sure the bike is perfect for your child, so you can always return or exchange your bike for up to 30 days after delivery.
You can visit our FAQ page for more detailed refund policy -
Warranty up to 5 Years
We have full confidence in our bikes, which is why we offer a 5-year warranty on the aluminum frames and forks.
Ohter spare parts and repairs are covered within the first 1-3 year of purchase. You can visit our FAQ page for more info
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Contact Us
If you have a question about a new bike, an existing order, or need help with technical troubleshooting, our team of bike experts is ready to help you navigate every turn.
Email us: service@nabiis.com. We will replay you within 24 hours on weekdays.Find your fit: Use our Online Bike Finder to get a bike recommendation based on your child’s height and riding style.
Drop us a line: Use the form on our contact page for more specific inquiries
Nabiis LR³ System
This is the product technology of Nabiis.Professional-grade bikes built for growing riders.
▪ Nabiis BioMap™
Kids aren't small adults. Their bikes shouldn't be, either.
▪ Nabiis Air-5D™
We've tuned every touchpoint to make lightness an instinct, not just a measurement.
▪ Professionally Assembled
Every bike is precision-tuned before it ever leaves our doors.
Mark Series · Pro · All-Terrain
1.36 kg Aerospace-Grade Ultralight Aluminum Hardtail Frame
Tested through 250,000 fatigue cycles, including 50,000 horizontal-force, 100,000 vertical-force, and 100,000 pedaling-force cycles, to achieve an effective balance of low weight and structural strength.
Air Suspension Fork with Adjustable Pressure
Significantly lighter than a traditional coil fork, the air fork reduces weight at the front of the bike, making it easier for young riders to lift the front wheel over obstacles while providing a smoother, more comfortable ride.A handlebar-mounted remote lets riders switch between suspension modes in seconds. Open the suspension to absorb impacts and smooth out rough terrain such as dirt, rocky trails, and gravel. Lock it out on smoother surfaces to reduce unwanted suspension movement and maintain more efficient pedaling on roads and race courses.
Radius Hydraulic Disc Brakes
Crisp, responsive braking with enough leverage for confident two-finger operation. Light action makes braking quick and easy to control, giving young riders greater confidence on the move.
Short-Reach Brake Levers for Small Hands
Sized and tuned for kids’ hands, the short-reach levers are easy to wrap small fingers around and operate comfortably, giving young riders more confident control of the bike.
Prowheel Integrated Crankset
Built for efficient power transfer with less weight and less energy loss. Every pedal stroke translates into responsive forward motion, making starts quicker and climbs easier.
S-Ride RD-M520 Series Performance MTB Drivetrain
Crisp, smooth and precise shifting with increased chain tension for better stability over rough terrain and a reduced risk of chain drops.
95% Pre-Assembled
The shifting, braking, and drivetrain systems are tuned by experienced technicians before leaving the factory. Simply install the pedals and front wheel, and the bike is ready to hit the trails.
Mark Pro Built for Young Mountain Bikers
Schwalbe Rocket Ron Tires
A proven performer on the XC circuit, with an open tread pattern designed for efficient mud shedding and an ideal balance of grip and low rolling resistance.
Ergonomic Streamlined Saddle
Contoured for comfort and support, helping reduce fatigue and discomfort on longer rides.
