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How to choose the right frame size


The simple method used in the past was to stand over the top tube of the bike (with socks on). Your crotch was supposed to be 7-10 cm above the tube for mountain bikes. Presently, this method is no longer considered accurate, mostly because of the wide range of bike frames used. An example of this is the difference between classic hardtail geometry with the horizontal top tube frame and bikes with full suspension.

How to choose right crankset length


Mainly based on the rider’s height and cycling style. When cycling in a harder gear (and at lower pace) longer crankset is recommended (to provide better leverage). High pace cycling is better with a shorter crankset. And for mountain bikes is generally recommended 2,5-5 mm crankset longer than in road bikes. This means that if your road bike crankset is 172.5 mm your mountain bike one can be 175 mm.

As a neutral base, we recommend a frame size and crankset length as shown in the table below:

mtb and hybrid bike
Rider's Height Inside Leg MTB - hardtail (full suspension frame recommended one inch smaller) Hybrid bike Cranks length
feet and inches cm inches cm inches size inches cm mm
4'11" - 5'3" 150 - 16026" - 29"66 - 7413", 14"XS13", 14"47 - 49170
5'3" - 5'7" 160 - 17028" - 31"71 - 7915", 16"S15", 16"50 - 52172.5
5'7'' - 5'11" 170 - 18030" - 33" 76 - 8417'', 18''M17'', 18''53 - 54175
5'11 - 6'1" 180 - 18532" - 34" 81 - 8619", 20''L19", 20''55 - 57177.5
6'1" - 6'3" 185 - 19033" - 35" 84 - 8921'', 22"XL21'', 22"58 - 61180
6'3" - 6'5" 190 - 19534" - 36" 86 - 9123'', 25"XXL23'', 25"61 - 63180

Set the right saddle height


Once the right frame size and crankset length is determined, the next important step is to set up the saddle height. For the recommended saddle height, sit comfortably. Set the saddle high enough so that your heels (with shoes on) just about touch the pedal with your leg comfortably straight, with the pedal at the bottom of your heel and with the crankset making a line with the seat tube.

To set a nominal saddle height we recommend using the calculator/ trigonometric model and instructions HERE.

The saddle should be adjusted horizontally or tilted slightly forward. For common riding styles, is best when the saddle is positioned horizontally. If you prefer a slight tilt forward (for example, if your handlebars are well below the saddle level), we suggest the tilt does not exceed more than half an inch (1 cm) at the nose of the saddle.

How to get measures for the trigonometric model?

Right set-up of handlebars height


Mountain or hybrid bike handlebars are usually set at the same level as the saddle. Alternatively, you can set them two inches (5 cm) below the saddle level.

Level of the brake levers and gear shifter


For the nominal set-up, you can assume that the brake levers and shift controls can be at about 45 degrees from the horizontal (or vertical) axis. See the picture below:

For the fine-tuning of the brake levers and shift controls to fit your riding style, the angle should follow your outstretched fingers and arm axis. See the picture below:

Level of the brake levers and gear shifter


The basic setup, at present (in the age of the effective hydraulics and other modern brakes), the rider should be able to control brakes with one or two fingers. Hold the grip and set the brake levers so that the forefinger and middle finger can reach the end of the brake lever comfortably.

The brake lever is shaped for this position, maximizing braking power:

How to get measures for the trigonometric model?
How to get measures for the trigonometric model?

Correct feet position on the pedal


The basic rule when pedalling is that the pedal’s axis should pass just below the centre of the big toe joint. The base of the big toe joint should be directly above the axis of the pedal. This way the transfer of weight on the pedals is most effective and it burdens the foot least.

Using bike shoes with cleats makes keeping the right position on the pedal the simplest. The position of the cleat on the sole may be adjusted to an individual rider’s preference.

When pedalling, the foot should be parallel to the crankset.

How to get measures for the trigonometric model?

How to set up the fore-aft saddle position


Right choice of frame size, crankset, and the right set-up of saddle height and feet position on the pedals are the most important factors needed for proper set-up.

The fore-aft saddle position should be set so that the plummet going from the bottom edge of the kneecap intersects with the axis of the pedal.

The crankset must be in the horizontal position during this test.

When applying this rule, it is important to sit comfortably in the basic position, i.e. in the centre of the saddle.

To set the fore-aft saddle position, we recommend using the calculator/ trigonometric model and instructions HERE.

The crankset must be in the horizontal position during this test.

Setting the right handlebar distance from the saddle

This is based mainly on your upper body proportions (arms and body length) and your riding style (especially upper body bend).

The usual upper body bend should be as follows:

  • Racer - 30 degrees
  • Tourer - 40 degrees
  • Commuter - 50 degrees

To set a nominal handlebars distance, we recommend using the calculator/ trigonometric model and instructions HERE.