Skip to product information
1 of 6

KOSTKA HILL FUN Adult balance bike

KOSTKA HILL FUN Adult balance bike

Regular price $699.00 USD
Regular price Sale price $699.00 USD
Sale Sold out
✓ Free Shipping in the Continental US
Seated Adult Balance Bike: A KOSTKA Hill Fun kick scooter with saddle for riders who prefer seated support.
Adjustable for Adult Riders: Saddle height adjusts about 10 cm; intended for approximately 150–185 cm tall riders.
Versatile Everyday Routes: Human-powered riding on asphalt and suitable firm forest or meadow paths.

    Estimated Delivery: January / February 2027

    Pre-order today to reserve yours from our limited first shipment.

    Secure checkout
    View full details

    KOSTKA Hill Fun with Seat — Comfort, Fit & Freedom

    A Seat for a Different Way to Ride

    A Seat for a Different Way to Ride

    The KOSTKA Hill Fun Adult Balance Bike adds a saddle to a human-powered kick scooter. It offers a seated riding option for adults who prefer not to stand for an entire journey or find extended walking tiring. It is not self-balancing: safe riding still requires steering, braking, balance and the ability to put feet on the ground.

    10 cm Adjustable Saddle — Designed for Adult Fit

    10 cm Adjustable Saddle — Designed for Adult Fit

    The saddle height can be adjusted by approximately 10 cm (3.9 inches), with an intended rider height range of about 150–185 cm (4 ft 11 in–6 ft 1 in). Fit depends on leg length and comfort. Before riding, adjust the saddle so the rider can reach the ground safely and control the scooter.

    From Pavement to Firm Forest and Meadow Paths

    From Pavement to Firm Forest and Meadow Paths

    Enjoy relaxed, non-electric outdoor rides on asphalt, smooth park paths and suitable firm forest or meadow trails. The Hill Fun's pneumatic tires and V-brakes support everyday recreational use. Avoid loose, slippery, steep or uneven surfaces beyond the rider's ability; a seated scooter is not a medical mobility aid.

    DESIGNED & MANUFACTURED IN THE CZECH REPUBLIC

    From engineering to manufacturing and assembly, KOSTKA scooters are proudly made in the Czech Republic, combining skilled craftsmanship with decades of kick scooter expertise.

    PURPOSE-BUILT FOR REAL ADVENTURES

    From everyday rides and touring to off-road adventures and dog scootering, KOSTKA combines rider-focused geometry, large wheels and carefully selected components for every journey.

    BUILT FOR YEARS OF RIDING

    Durable frames, quality components and replaceable parts make KOSTKA scooters easy to maintain and ready for years of exploration.

    Ready to Ride?

    KOSTKA HILL FUN Adult balance bike

    $699.00

    Technical Specifications

    Rider & Use
    Weight Capacity
    220 lb
    Scooter Weight
    19.4 lb
    Dimensions
    Overall Length
    58.3 in
    Deck Size
    16.5 in
    Wheelbase
    40.9 in
    Ground Clearance
    2.0 in
    Wheels & Ride
    Wheel Diameter
    Front 20.0 in / Rear 20.0 in
    Tyres
    Mitas Walrus
    Components & Construction
    Handlebar
    KOSTKA FBH 680-190 St
    Front Fork
    Rigid 20-inch fork, 100 mm

     Further Information 

    Product Description

    KOSTKA Hill Fun Adult Balance Bike — Seated Kick Scooter for Adults

    Discover the KOSTKA Hill Fun Adult Balance Bike, a human-powered kick scooter with an adjustable saddle. Built on the Hill Fun platform, this affordable seated footbike gives adults an alternative to standing on a conventional kick scooter for every part of a ride. It combines outdoor recreation with the option to sit while moving at your own pace.

    Who Is the KOSTKA Hill Fun with Seat For?

    This adult balance bike may appeal to people who find prolonged standing or walking tiring, or who simply prefer a seated riding position. The saddle offers seated support while riders propel the scooter with their feet. However, it is a two-wheeled product—not a self-balancing vehicle or certified medical mobility aid. Users still need sufficient balance, coordination, strength and braking ability to ride safely and stop with their feet on the ground.

    Adjustable Saddle: Approximately 10 cm of Height Adjustment

    The seat can be adjusted vertically by approximately 10 cm (3.9 inches), allowing the riding position to be tailored to different adults. The intended rider height range is approximately 150–185 cm (4 ft 11 in to 6 ft 1 in), depending on inseam length, footwear and individual fit. Before riding, adjust the saddle to allow secure foot contact with the ground and comfortable control of the handlebars and brakes.

    From Asphalt to Forest and Meadow Paths

    The KOSTKA Hill Fun with saddle is suitable for recreational use on asphalt, paved paths and appropriate firm forest or meadow tracks. Pneumatic tires help make everyday outdoor routes more enjoyable. Surface condition, slope, weather and rider ability all affect control; avoid loose gravel, mud, steep gradients and other challenging terrain if they compromise safe riding.

    A Practical, Non-Electric Adult Balance Bike

    Unlike an electric mobility scooter, this seated kick scooter is powered entirely by the rider. It offers a simple way to enjoy fresh air and short outdoor trips without a motor. The combination of a seat, two wheels and foot propulsion makes it a distinct choice for adults comparing balance bikes, seated footbikes and kick scooters with saddles.

    20-Inch Front Wheel and 16-Inch Rear Wheel

    The KOSTKA Hill Fun Adult Balance Bike features a 20-inch front wheel and a 16-inch rear wheel. This larger-front-wheel configuration is intended for recreational riding on suitable asphalt and firm outdoor paths. Wheel sizes refer to the nominal wheel/tire designation; actual outside diameter can vary with tire choice.

    Key Features

    • Adult kick scooter with an added saddle and seatpost for seated riding.

    • 20-inch front wheel and 16-inch rear wheel (20/16 wheel setup).

    • Saddle height adjustable by approximately 10 cm (3.9 inches).

    • Intended for riders approximately 150–185 cm tall, subject to individual fit.

    • Designed for asphalt and suitable firm forest and meadow paths.

    • Human-powered, non-electric riding.

    • Two-wheeled configuration requiring active balance, steering and braking.

    Frequently Asked Questions

    What is an adult balance bike? A balance bike for adults is a two-wheeled, foot-propelled vehicle that can be ridden while seated. The rider pushes against the ground with their feet instead of pedaling.

    Can the KOSTKA Hill Fun Adult Balance Bike help someone who struggles with standing or walking? The saddle may make short outings more comfortable for some adults who find prolonged standing tiring. It is not designed to replace a walker or other medical mobility aid, and anyone with significant balance or mobility difficulties should seek professional advice before use.

    How adjustable is the saddle? The saddle has approximately 10 cm (3.9 inches) of vertical height adjustment.

    What rider height is it intended for? Approximately 150–185 cm (4 ft 11 in to 6 ft 1 in), provided the rider can reach the ground securely and operate the brakes comfortably.

    Can I ride it on grass or forest trails? It is suitable for appropriate firm meadow and forest paths as well as asphalt. Avoid soft, slippery, steep or highly uneven surfaces.

    Is it electric? No. The KOSTKA Hill Fun Adult Balance Bike is propelled by the rider's feet.

    Warranty

    2-Year Scooter4US Limited Warranty

    We stand behind every scooter we sell. All scooters purchased from Scooter4US are covered by our 2-year limited warranty against defects in materials and workmanship under normal use.

    The warranty covers defects that affect the proper function of the scooter and that are attributable to faulty materials or workmanship.

    Normal wear and wear items are not covered. This includes components that naturally wear through regular use, such as wheels, tires, bearings, brake components, grips, grip tape, and other consumable or wear-related parts.

    The warranty also does not cover damage caused by accidents, misuse, neglect, improper maintenance, modifications, improper assembly, or use outside the product's intended purpose.

    If you believe your scooter has a warranty issue, please contact us at support@scooter4us.com with your order information, a description of the issue, and, if possible, photos showing the problem. We will review your claim and provide the appropriate next steps.

    Some manufacturers may provide additional or longer warranty coverage. Any applicable manufacturer warranty is separate from and may provide benefits beyond the Scooter4US Limited Warranty.

    This limited warranty gives you specific legal rights, and you may also have other rights that vary by state.

    Returns

    30-Day Returns

    We want you to be completely satisfied with your purchase. Scooters purchased from Scooter4US may be returned within 30 days of receiving your order, subject to the conditions below.

    You are welcome to take your scooter for a short test ride on a clean, dry, and smooth surface to make sure it is right for you. Please take care during your test ride. Returned scooters must be clean and free from visible signs of use, wear, scratches, or damage.

    The scooter must be returned clean and complete with all original parts, accessories, manuals, and packaging. We recommend keeping the original packaging until you are certain you want to keep your scooter.

    To start a return, please contact us at support@scooter4us.com before sending anything back. We will provide return instructions and the appropriate return address.

    Unless the return is due to an error on our part or a defective product, return shipping costs are the responsibility of the customer. Original shipping charges, where applicable, are non-refundable.

    All returned products are inspected upon receipt. Products showing visible wear, damage, excessive use, modification, or missing parts may be subject to a reduction in the refund or may not qualify for a return.

    Once your return has been received, inspected, and approved, the refund will be issued to the original payment method.

    This return policy does not affect any rights you may have under applicable law.