Bike size calculator

Mountain bikes offer the best off-road capability and are designed for all types of terrain: gravel roads, forest trails and rocky mountain areas. They usually have strong frames, wide tyres with an aggressive tread, suspension systems that absorb shocks on uneven surfaces, and greater ground clearance around the bottom bracket for improved off-road performance.

There are three main types of mountain bike: rigid, hardtail and full-suspension. Mountain bikes come with different wheel sizes—26”, 27.5” and 29”—but the correct frame size for all of them is selected according to the rider's height and inside leg measurement.

Road bikes are designed for smooth, paved surfaces such as streets and cycle paths. Their key features are low weight, good aerodynamics, narrow tyres and drop handlebars, which allow the rider to adopt a highly aerodynamic position.

Road bikes are most commonly used for racing, leisure rides, long-distance trips and urban travel. The correct road-bike frame size is selected according to the rider's height and inside leg measurement.

All-terrain bikes include city, touring and hybrid bikes. City bikes are designed for urban riding, usually have relatively few gears and are equipped with a rack, front and rear lights or reflectors. Touring bikes are slightly longer than city bikes, but still offer a relatively upright riding position. They are ideal for long journeys and carrying larger loads.

These bikes have more gears and are equipped with racks, front and rear lights or reflectors. Hybrid bikes combine features of mountain and touring bikes. They may have a front suspension fork but no rack or other accessories that could restrict manoeuvrability on forest trails or hilly terrain.

Their geometry is similar to that of touring bikes, although the rear triangle is often shorter. They usually have 28” wheels and medium-tread tyres, providing good grip off-road and efficient rolling on hard or paved surfaces. The correct frame size for all-terrain and hybrid bikes is selected according to the rider's height and inside leg measurement.

BMX bikes būna lenktyniniai (angl. Race) ir laisvo stiliaus, triukams (angl. Freestyle). Lenktyniniai BMX bikes yra itin lengvi, skirti greičiui ir stabilumui, o laisvo stiliaus BMX bikes skirti manevravimui, šokinėjimui ir triukų atlikimui.

BMX bikes feature a small, very strong frame, low weight, very wide tyres, axle pegs and raised handlebars. The handlebar design often allows the front wheel to rotate through 360°. Wheel sizes are usually 20“ or 24“. BMX frame size is selected according to the rider's height.

Children's bikes yra maži, tvirtais rėmais ir storomis padangomis, specialiai pritaikyti vaikams. Jie idealiai tinka važiuoti plokščia, asfaltuota ar kieta danga. Augant vaikui proporcingai didėja ir dviračio ratai. Tai pagrindinis kriterijus nustatantis dviračio dydį.

The simplest balance bike has no pedals, small wheels and is propelled by pushing against the ground with the feet. Bikes with larger wheels usually include more features to develop the child's skills, coordination and confidence. This calculator helps determine the suitable wheel size based on the child's height.