RECOMMENDED FRAME SIZE

23 Nov RECOMMENDED FRAME SIZE

Proper selection of frame size is the most important decision when buying a bike because the wrong size can result in uncomfortable or unsafe driving.

In this text we will explain two methods that you can quickly and easily perform when purchasing a bike to avoid confusions or wrong choice.

Adjusting the height of the seat

This is the fastest and easiest method of finding out what is your right height of the seat. First try to exceed the top bicycle frame, if you can stand above the frame then keep on with further actions.

1. Put on shoes in which you cycle
2. Sit in a position as if you are driving
3. Turn the pedal in its lowest position
4. Make sure your leg is completely stretched
5. If you can not reach the pedal then seat is too high. If the heel touches the pedal, and the leg is totally straight or slightly bent at the knee, height of the seat is right. If the heel touches the pedal and your leg is bent at the knee, seat is too low.
6. Adjust the seat up or down

Now again sit on the bike and stand on the pedal with the widest part of your foot. Your leg should be slightly bent at the knee, and when you feel stable your hips may not “swing”. This is the correct position for proper and comfortable pedalling to avoid injury or pain.

Measuring internal length of the leg

This method is most accurate in determining height of the seat and frame, but requires a little more effort and help of other people, and you must have a meter and a hardback book.

1. Put on pants in which you cycle
2. Barefoot stand up against the wall
3. Hardback book put between your legs and lift like you’re sitting in the seat bicycle
4. The assistant should measure the distance of the tip of the book from the floor
5. Altitude is your inner leg length (UDN)
6. Multiply the length of your inner legs with 0.886 and you will get a seat height of the centre of the bottom bracket to the top of the seat, measured parallel to the seat tube
7. For the size of road frame multiply your inner leg length with a coefficient of 0.663, result is your ideal frame size for road or trekking bike
8. For the size of mountain bike (MTB) frame multiply your inner leg length with a coefficient of 0.225

For a sportier drive, select a smaller size frame, and for a more comfortable ride go for a larger frame, if you do not have enough time to measure and you are buying the bike online, feel free to look at our table which might help you.

Table to select the frame size for MTB bike 26 “, 27.5” and 29 “

Driver’s height	Recommended frame size

Centimetres	Col (Inches)	Centimetres	Size of the bike
148 – 155	13″ – 14″	33.0 – 35.5	XS
155 – 168	14″ – 17″	35.5 – 43.0	S
168 – 178	17″ – 19″	43.0 – 48.0	M
178 – 185	19″ – 21″	48.0 – 53.5	L
185+	21″ – 23″	53.5 – 58.5	XL

Table to select the frame size for road bike

Driver’s height	Recommended frame size

Centimetres	Centimetres	Size of the bikea
155 – 160	47 – 49	XXS
160 – 165	49 – 51	XS
165 – 170	51 – 53	S
170 – 175	53 – 55	M
175 – 180	55 – 57	L
180 – 185	57 – 60	XL
185 – 190	60 – 62	XXL
190 – 195	62 – 64	XXXL

Table to select the frame size for trekking bike

Driver’s height	Recommended frame size

Centimetres	Size of the bikea
150 – 160	42 – 47
160 – 170	47 – 52
170 – 180	52 – 54
180 – 185	54 – 56
185 – 190	56 – 58
190 – 195	58 – 60
195 +	60 – 63

Table to select the frame size for city bike

Driver’s height	Recommended frame size

Centimetres	Size of the bikea
150 – 160	42 – 48
160 – 170	48 – 52
170 – 180	52 – 55
180 – 185	55 – 58
185 – 190	58 – 61
190 – 195	61 – 63
195 +	63 – 66