Hero Cycles Ltd.
Guidelines for Size Selection
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Guidelines for Size Selection
What Size Do I Buy?
You have taken many exciting steps towards buying a beautiful, maybe even custom, higher-level road bike. You have labored over frame material, components, budget, even the bike’s color. You’ve been to ten shops. You’ve gone back to three of them 4 times each. You have then visited the last two stores on your list 5 times each. Finally, you have decided on the goods and who you are buying them from. A sense of accomplishment and glee overcomes you….yet you have the sense about you that one painful, difficult, nearly cruel decision is left to be made. You are left with the infernal riddle…. what size do I buy???
 
Bike Sizing Guide
These things are what you should ensure while selecting a bicycle.
  • You fit the bike properly
  • The bike provides the greatest efficiency for the rider
  • Maximum comfort for the rider
  • Maximum stability for the rider
  • Maximum power transfer for the rider
  • Maximum aerodynamics for the rider
Points to be checked
  • When you straddle the bicycle frame with your feet flat on the ground, you should be able to clear the top tube (crossbar).
  • If you like to sit upright, go for the biggest frame that still allows top tube clearance.
  • If you prefer more athletic riding, particularly mountain biking over rough terrain, you are safest with maximum clearance, so plump for the smallest possible frame - as long as you can still stretch your legs and the bike isn't so short that it cramps your riding style.
  • Although every manufacturer has their own sizing quirks, a bike's frame size is based on the length of the seat tube (the tube that the seatpost goes into).
  • You can get a rough idea of the size of frame you require if you measure yourinside leg - crotch to floor - then subract 9"/23cm or 10"/25cm for a road bike (or a mountain bike used as a road bike) or 12"/30cm for an athletically-ridden mountain bike. Hence a rider with a 32"/81cm inside leg who owns a 23"/58cm road bike usually requires a 20"/51cm mountain bike.
  • The development of compact frames with sloping top tubes and long seatposts has further blurred the sizing issue. I'm unfeasibly tall (6'8"/203cm) so frame-builders would once recommend a minimum road bike frame size of 27"/68.5cm. I now comfortably ride a 21"/53cm Specialized Expedition.
Recommended bike sizes for your height.

Height
Inside Leg (Inseam) Length**

Bike Frame Size
MTB
4’11” – 5’3”
25” – 27”
13 – 15 inches
5’3” – 5’7”
27” – 29”
15 – 17 inches
5’7” – 5’11”
29” – 31”
17 – 19 inches
5’11” – 6’2”
31” – 33”
19 – 21 inches
6’2” – 6’4”
33” – 35”
21 – 23 inches
6’4” Plus
35”+
23 inches & up
City Bikes
4’11” – 5’3”
25” – 27”
13 – 15 inches
5’3” – 5’7”
27” – 29”
15 – 17 inches
5’7” – 5’11”
29” – 31”
17 – 19 inches
5’11” – 6’2”
31” – 33”
19 – 21 inches
6’2” – 6’4”
33” – 35”
21 – 23 inches
6’4” Plus
35”+
23 inches & up
Road / Racing
4’10” – 5’1”
25.5” – 27”
46 – 48 cm
5’0” – 5’3”
26.5” – 28”
48 – 50 cm
5’2” – 5’5”
27.5” – 29”
50 – 52 cm
5’4” – 5’7”
28.5” – 30”
52 – 54 cm
5’6” – 5’9”
29.5” – 31”
54 – 56 cm
5’8” – 5’11”
30.5” – 32”
56 – 58 cm
5’10” – 6’1”
31.5” – 33”
58 – 60 cm
6’0” – 6’3”
32.5” – 34”
60 – 62 cm
6’2” – 6’5”
34.5” – 36”
62 – 64 cm
Kid’s Bikes
2-5 years
26” – 34”
12”
4-8 years
34” – 42”
16”
6-9 years
42” – 48”
18”
8-12 years
48” – 56”
20”
Youth
56” – 62”
24”
 
**Measured from crotch to the floor, not to ankle
 
  Hero Cycles Ltd.
  Hero Nagar, G. T. Road,
  Ludhiana (Punjab) India		 Tel: +91-161-5026969, 2539448-52
Fax: +91-161-2539478
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