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Size yourself with the charts below.

what bike size guide

The size guides below are for guidance only and should not be taken as accurate. If you find the bike is unsuitable after delivery due to its size you cannot cancel/return your order. Please email us if you require size guidance: sales@mailorderbikes.com



bike sizing guide


If you haven't stopped growing: when you are sitting on the bike, with the seat at its lowest point, the balls of the feet should just touch the ground. This should give your child 2-3 years out of the bike.


If you have stopped growing: Try to adjust the seat height so that the balls of your feet just touch the ground. Some people prefer the seat higher if they are going on longer rides and wish to stretch their legs, alternatively if you are starting and stopping frequently or are not very confident at cycling you should try to have your feet flat on the ground.


If a bike is shown with a seat suspension post this can raise the lowest possible seat height by 3 inches so factor this into your measurements when you choose your size.



Bike Sizing (Adult Bikes)


Frame Size (Inches) Inside Leg Range (inches)
14 inch 24-29 inches
15 inch 25-30 inches
16 inch 26-31 inches
17 inch 27-32 inches
18 inch 28-33 inches
19 inch 29-34 inches
20 inch 30-35 inches
21 inch 31-36 inches
22 inch 32-37 inches
23 inch 33-38 inches



Bike Sizing (Children's Bikes)


Wheel Size (Inches) Age Range
12 inch 3 years +
14 inch 4 years +
16 inch 5 years +
18 inch 6 years +
20 inch 7 years +
24 inch 8-9 years +



Bike Sizing (Racing Bikes)


Frame Size (cm) Inside Leg Range (inches)
44 cm 27-32 inches
46 cm 28-33 inches
48 cm 29-34 inches
50 cm 30-35 inches
52 cm 31-36 inches
54 cm 32-37 inches
56 cm 33-38 inches
58 cm 34-39 inches
60 cm 35-40 inches



Racing Bike Geometry & Sizing Charts


Raleigh Road Bike Sizing Guide

Raleigh Airlite Geometry Chart 2010


Avanti Geometry Chart 2010



Clothing Sizing


Jackets Gents Small (cm) Small (inches) Medium (cm) Medium (inches) Large (cm) Large (inches) XLarge (cm) XLarge (inches) (XXL (cm) XXLarge (inches)
Chest 112 (cm) 44 (inches) 116 (cm) 45 (inches) 120 (cm) 47 (inches) 124 (cm) 48 (inches) 128 (cm) 50 (inches)
Sleeve Length 80 (cm) 31 (inches) 82 (cm) 32 (inches) 84 (cm) 33 (inches) 86 (cm) 34 (inches) 88 (cm) 35 (inches)

Jersey and Shorts Gents Small (cm) Small (inches) Medium (cm) Medium (inches) Large (cm) Large (inches) XLarge (cm) XLarge (inches) (XXL (cm) XXLarge (inches)
Chest 94-100 (cm) 37-39 (inches) 100-106 (cm) 39-41 (inches) 106-114 (cm) 41-44 (inches) 114-120 (cm) 44-47 (inches) 120-126(cm) 47-49 (inches)
Waist 79-84 (cm) 31-33 (inches) 84-89 (cm) 33-35 (inches) 89-95 (cm) 35-37 (inches) 95-100 (cm) 37-39 (inches) 100-105 (cm) 39-41 (inches)

Jersey and Shorts Womens Small (cm) Small (inches) Medium (cm) Medium (inches) Large (cm) Large (inches) XLarge (cm) XLarge (inches)
Chest 88-93 (cm) 34-36 (inches) 93-98 (cm) 36-38 (inches) 98-103 (cm) 38-40 (inches) 103-112 (cm) 40-44 (inches)
Waist 71-76 (cm) 28-30 (inches) 76-80 (cm) 30-32 (inches) 81-86 (cm) 32-34 (inches) 86-91 (cm) 34-35 (inches)




Tyre Size Chart



Tyre Size Infoc Size Info Alternative Sizing Used
40-622 700 x 38c N/A
37-622 700 x 35c 28 x 1 5/8 x 1 3/8
32-622 700 x 32c 28 x 1 5/8 x 1 1/4
32-630 N/A 27 x 1 1/4
28-622 700 x 28c 28 x 1 5/8 x 1 1/8
25-622 700 x 25c N/A
23-622 700 x 23c N/A
20-622 700 x 20c N/A
32-597 N/A 26 x 1 1/4
37-590 650 x 35A 26 x 1 3/8
38-559 N/A 26 x 1.50
47-559 N/A 26 x 1.75
51-559 N/A 26 x 1.90
53-559 N/A 26 x 1.95
54-559 N/A 26 x 2.00
56-559 N/A 26 x 2.10
47-507 N/A 24 x 1.75
37-550 N/A 24 x 1 3/8
37-501 N/A 22 x 1 3/8
37-451 N/A 20 x 1 3/8
37-440 500A N/A
35-406 N/A 20 x 1.3
47-406 N/A 20 x 1.75 x 2
50-406 N/A 20 x 1.85
52-406 N/A 20 x 1.95
37-400 N/A 18 x 1 3/8
47-305 N/A 16 x 1.75 x 2
37-298 N/A 14 x 1 3/8
47-203 N/A 12 x 1.75 x 2 1/4


Further Tyre Information


Tyre Sizing and Technical Information PDF from Schwalbe

Car Rack Compatibility



Avenir Car Rack Application Guide

Car Rack Compatibility Disclaimer




Please email us if you require further size guidance: sales@mailorderbikes.com




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