Bicycle size guide for BMC

Choosing the right size for your bike BMC It is essential to enjoy a comfortable, efficient and safe pedaling experience. In this guide we explain everything you need to know: from how to take your measurements correctly to the equivalence tables for height and inseam, through advice depending on the type of use and the differences between geometries. Whether it's your first BMC As if you are looking to improve your posture in the saddle, here you will find the keys to finding your ideal size.

Why is it important to choose the correct size?

ride a bicycle BMC With the right size it makes a difference. A well-fitting size helps you optimize your performance, maintain correct posture and pedal more fluidly without overloading your body. In addition, it prevents discomfort in the knees, back or neck, and reduces the risk of long-term injuries. Whether to train, compete or enjoy weekend outings, a BMC adapted to you, it offers you greater control, efficiency and comfort on each route.

Bicycle size chart for BMC

Equivalency by height and inseam

To know which size of BMC bicycle you need, the most accurate way is to combine your height with your inseam measurement. This allows you to calculate the ideal seat tube length and choose the frame that best suits you.

Size chart in cm and inches (S, M, L, XL...)

Below, you can check a guideline chart with the recommended sizes according to your measurements. Remember, there may be small variations depending on the geometry and brand of the bicycle.
Height (cm) Inseam (cm) Frame Size (cm) Standard Size Size in Inches
150 – 16065 – 7047 – 49XS18.5” – 19.3”
160 – 17070 – 7550 – 52S19.6” – 20.4”
170 – 17576 – 8053 – 54M20.8” – 21.2”
176 – 18280 – 8555 – 56L21.6” – 22.0”
183 – 19085 – 9057 – 59XL22.4” – 23.2”
190+90+60 – 62XXL23.6” – 24.4”

How to calculate your ideal size with a formula

If you don't want to rely solely on a chart, you can calculate your BMC bicycle size using a simple formula based on your inseam length. You only need a measuring tape and to follow these steps:

Step 1: measure your inseam

Stand barefoot against the wall, with your legs straight and about 15 cm apart. Use a book or level between your legs, simulating a saddle, and measure from the floor to the superior part of the book. That is your inseam in centimeters.

Step 2: apply the formula

Once you have the measurement, multiply that number by 0.66 to get the ideal frame size (in cm):

Frame size (cm) = Inseam (cm) × 0.66

Practical example

If your inseam measures 78 cm:

78 × 0.66 = 51.48

The recommended size would be a frame of approximately 51-52 cm, equivalent to a size S or M depending on the range of bicycles Specialized.

What if you are between two sizes?

If the calculation gives you an intermediate value, take your riding style into account: for more comfort, choose the larger size; if you want a more aggressive and sporty ride, pick the smaller one.

BMC: Swiss precision in every line of the frame

The bicycles BMC They are characterized by their high-precision Swiss engineering, with a geometry developed to maximize both performance and rider comfort. Whether on the road, mountain or gravel, each frame BMC It is designed with an obsessive focus on efficiency, control and reactivity. The brand adjusts every angle and dimension to offer an optimal position on the bike, reducing muscle fatigue and improving stability even in the most demanding conditions. In addition, it adapts its geometries depending on the modality: aerodynamic for road competition, agile and rigid for XC or balanced for gravel.

How Sizes Relate to Brands

BMC: Swiss geometry designed for performance

In BMC, The geometry is the result of years of Swiss innovation and precision. Each model is designed to adapt to its discipline and maximize the rider's efficiency on any terrain.

The BMC Teammachine stands out on the road for its competition geometry: light, rigid and reactive, ideal for climbing with power and descending with total control. For those seeking to master the gravel, the BMC URS offers progressive geometry that improves stability without sacrificing agility.

In mountain biking, the BMC Fourstroke is committed to modern and efficient geometry that favors performance in XC and marathons. with BMC, Every angle, tube and ratio is optimized so the bike fits you, not the other way around.

Explore branded bicycles

Orbea Berria Canyon Specialized Scott Cannondale Pinarello Giant Trek Mondraker

Other brand size guides

Sizes Trek Sizes Giant Sizes Cannondale Sizes Specialized Sizes Scott Sizes Orbea Sizes BMC
Sizes Berria Sizes Colnago Sizes Cube Sizes Felt Sizes BH Sizes Cervélo Sizes Lapierre
Sizes Canyon Sizes Mondraker Sizes Bianchi Sizes Merida

Frequently asked questions
Is the size the same on a gravel or MTB bike?

Not exactly. Although they may seem similar, the geometry and use are different. A size M on a road bike does not always correspond to an M on a gravel or MTB. That’s why it’s important to consult the specific charts for each type of bike.
Does the size depend on the frame type?

Yes. The shape and geometry of the frame (aero, endurance, compact, sloping, etc.) can make two bikes with the same “official” size feel very different. It’s always recommended to check the geometry and reach of the specific model you’re going to buy.
What mistakes should you avoid when choosing a size?
  • Relying only on height without measuring your inseam.
  • Choosing by intuition without consulting charts or formulas.
  • Settling for a size just because “it’s the one available.”
  • Not considering the use: comfort and type of routes also matter.
  • Ignoring the possibility of adjusting components (stem, seatpost, etc.) if you’re between two sizes.