specialized hybrid - sirrus

Hybrid bike size guide

Use our hybrid bike size guide to find the perfect frame size for you. Getting the right fit can make a real difference to your whole riding experience, giving you a comfortable and efficient ride.

Which size hybrid bike do I need?

To work out the right hybrid bike frame size for you, all you need is: 1. Your height 2. Your inside leg length

Then, use the size charts below to match your measurements to the manufacturers recommended frame size:

Hybrid Bike Sizing Chart (Men)

Height Inside leg Men's hybrid bike size
147cm-152cm / 4'10"-5'0"66cm / 26"13”, 14" (X Small)
152cm-160cm / 5'0"-5'3"69cm / 27"14”, 15” (X Small, Small)
160cm-170cm / 5'3"-5'7"71cm / 28"15”, 16" (Small)
170cm-175cm / 5'7"-5'9"76cm / 30"17", 18” (Medium)
175cm-180cm / 5'9"-5'11"79cm / 31"19”, 20" (Large)
180cm-188cm / 5'11"-6'2"81cm / 32"20", 21” (Large, X Large)
188cm-196cm / 6'2"-6'5"86cm / 34"21”, 22” (Large, X Large)
196cm+ / 6' 5"+91cm / 36"23", 24” (XX Large)

Bike Sizing Chart (Women)

Height Inside leg Women's hybrid bike size
147cm-155cm / 4'10"-5'1"66cm / 26"13”, 14" (X Small)
155cm-160cm / 5'1"-5'3"69cm / 27"14”, 15” (X Small, Small)
160cm-165cm / 5'3"-5'5"71cm / 28"15”, 16" (Small)
165cm-172cm / 5'5"-5'8"76cm / 30"17", 18” (Medium)
172cm+ / 5'8"+79cm / 31"19" (Large)


How are hybrid bikes sized?

Hybrid bikes combine features of both road and mountain bikes, and they can be sized in inches (like mountain bikes), centimetres (like road bikes) or using a S/M/L system. A hybrid bike frame size is calculated by measuring the length of the seat tube, from the centre of the front chainring to the top of the tube (where the seat post inserts). NB. Sizes can vary slightly between manufacturers.


Hybrid Bike Size FAQs

With your shoes off, stand upright against a wall, with your shoulders back and legs together. Use a pencil to make a small mark on the wall above your head – make sure you hold the pencil parallel to the floor. Then measure from the floor to your mark, in centimetres or feet and inches.

With your shoes off, stand upright with your back against a wall. Place a book/ruler between your legs, level with your crotch. Then measure from the floor to the top of the book/ruler, in centimetres or feet and inches (it’s easier if a friend helps).

It is possible to size hybrid bikes in inches (like mountain bikes), centimetres (like road bikes), or using the S/M/L system. Hybrid bikes include elements from both road and mountain bikes. By measuring the seat tube's length from the front chainring's centre to its top, a hybrid bike's frame size is determined (where the seat post inserts). Note: Manufacturers' sizes can differ somewhat.


Other Bike Size Guides


Nik Hudson