20 Tire

How to measure bicycle shops bicycle sizes /? ie.16 ", 20", etc. Is it the tire to the outside or inside edge or what?

I need to get a new bike for my 6 years old soon. He is on the longest side of a year, nearly 6 years (not fat, just built) and I have no idea on how to measure its current bike to get the size for her birthday next week next. Please help!

Kid's and adult bikes are measured differently, btw. For children, the diameter wheel, which can be printed on the tire sidewall. If not, measure the outside of the tire from one side to the other - Children's bikes are either 12 ", 16", 20 "or 24", so there is enough variation that you will be able to tell fairly easily as one is his. Look at your son's inseam measurement to determine what size to do it. And happy birthday to him!

32 12 15 20PLY BLEMISHED MINING TIRE
32 12 15 20PLY BLEMISHED MINING TIRE
$300.00
Time Remaining: 13h 32m
Buy It Now for only: $300.00

475 65 20 BLEMISHED 4PLY G 2 TRACTOR TIRE
475 65 20 BLEMISHED 4PLY G 2 TRACTOR TIRE
$300.00
Time Remaining: 13h 32m
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1600R20 USED MICHELIN XL 20PLY TIRE TUBE  FLAP
1600R20 USED MICHELIN XL 20PLY TIRE TUBE FLAP
$150.00
Time Remaining: 13h 33m
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B15114281 Tire Carlisle Turf Handlers Turf Master 20 x 8 x 10
B15114281 Tire Carlisle Turf Handlers Turf Master 20 x 8 x 10
$104.69
Time Remaining: 23h 13m
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NEW MULTI TRAC C S TITAN 41 X 1400 20 NHS TRACTOR TIRE WHEEL retail 368
NEW MULTI TRAC C S TITAN 41 X 1400 20 NHS TRACTOR TIRE WHEEL retail 368
$100.00
Time Remaining: 1d 9h 35m

Pair 112x20 tractor tires 112 20
Pair 112x20 tractor tires 112 20
$560.00
Time Remaining: 1d 14h 52m
Buy It Now for only: $560.00

2 48 25 20 FIRESTONE FLOTATION SAND TIRE TERRA HIGH FLOTATION 10 PLY
2 48 25 20 FIRESTONE FLOTATION SAND TIRE TERRA HIGH FLOTATION 10 PLY
$1,750.00
Time Remaining: 1d 18h 18m
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2 42 25 20 PRIMEX FLOTATION TIRE TERRA HIGH FLOTATION 16 PLY NEW NEVER MOUNTED
2 42 25 20 PRIMEX FLOTATION TIRE TERRA HIGH FLOTATION 16 PLY NEW NEVER MOUNTED
$4,000.00
Time Remaining: 1d 18h 26m
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Two New 750 20 Vintage Tread Front Tractor Tires and Tubes
Two New 750 20 Vintage Tread Front Tractor Tires and Tubes
$298.00
Time Remaining: 1d 18h 31m
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2 tires titan 20 x 1000 8 NHS
2 tires titan 20 x 1000 8 NHS
$59.99
Time Remaining: 1d 20h 54m

New 83 20 BKT Farm Tractor Lug Tire  Tube 6 ply R 1
New 83 20 BKT Farm Tractor Lug Tire Tube 6 ply R 1
$195.00
Time Remaining: 2d 14h
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Voltyre 112 20 tires BRAND NEW
Voltyre 112 20 tires BRAND NEW
$250.00
Time Remaining: 2d 15h 24m
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41X1400 20 BLEMISHED MULTI TRAC TURF 4PLY TIRE
41X1400 20 BLEMISHED MULTI TRAC TURF 4PLY TIRE
$125.00
Time Remaining: 3d 14h 3m
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TWO Used 41 1400x20 Goodyear Kubota L2900 L3200 Turf Mowing Tires on Wheels
TWO Used 41 1400x20 Goodyear Kubota L2900 L3200 Turf Mowing Tires on Wheels
$650.00
Time Remaining: 3d 14h 40m

2 48 25 20 FIRESTONE RIB TIRE TERRA HIGH FLOTATION 10 PLY
2 48 25 20 FIRESTONE RIB TIRE TERRA HIGH FLOTATION 10 PLY
$1,200.00
Time Remaining: 3d 18h 50m
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ONE Used 1600R20 MICHELIN Mobile Crane Tubeless Turf Tire
ONE Used 1600R20 MICHELIN Mobile Crane Tubeless Turf Tire
$500.00
Time Remaining: 4d 16h 26m

ONE USED 48 310020 Speader 12 Ply Goodyear Tire on Used Wheel
ONE USED 48 310020 Speader 12 Ply Goodyear Tire on Used Wheel
$500.00
Time Remaining: 4d 16h 26m

TWO 41 1400x20 Kubota John Deere Mighty Mow Galaxy 4 Ply Tubeless Turf Tires
TWO 41 1400x20 Kubota John Deere Mighty Mow Galaxy 4 Ply Tubeless Turf Tires
$400.00
Time Remaining: 4d 21h 38m

One New 650 20  700 20 Tube with TR75 Vale Stem for Truck Tires 120610
One New 650 20 700 20 Tube with TR75 Vale Stem for Truck Tires 120610
$38.00
Time Remaining: 5d 11h 33m
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New 750 20  750R20 Tube TR177 for Truck Tires FREE Shipping 120620
New 750 20 750R20 Tube TR177 for Truck Tires FREE Shipping 120620
$35.00
Time Remaining: 5d 11h 52m
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New 825 20 825R20 Radial Tube TR77 valve for Truck Tires FREE Shipping 120630
New 825 20 825R20 Radial Tube TR77 valve for Truck Tires FREE Shipping 120630
$32.00
Time Remaining: 5d 11h 56m
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New 900 20  900R20 Tube TR175 valve for Truck Tires FREE Shipping 120640
New 900 20 900R20 Tube TR175 valve for Truck Tires FREE Shipping 120640
$35.00
Time Remaining: 5d 11h 58m
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New 1000 20  1000R20 Tube TR78 valve for Truck Tires FREE Shippig 120650
New 1000 20 1000R20 Tube TR78 valve for Truck Tires FREE Shippig 120650
$38.00
Time Remaining: 5d 12h 1m
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TWO 43 1600x20 R4 Titan John Deere 750 Convert Turf Tires to R4 Lug Tires
TWO 43 1600x20 R4 Titan John Deere 750 Convert Turf Tires to R4 Lug Tires
$790.00
Time Remaining: 5d 12h 42m

44X1800 20 4PLY BLEMISHED TURF TIRE
44X1800 20 4PLY BLEMISHED TURF TIRE
$150.00
Time Remaining: 5d 16h 34m
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TWO 750X20 750 20 Six ply Triple Rib Farm Tractor Tires with Tubes
TWO 750X20 750 20 Six ply Triple Rib Farm Tractor Tires with Tubes
$274.00
Time Remaining: 5d 22h 26m

Tire 750 x 20SL 6 Ply Tri Rib New Universal
Tire 750 x 20SL 6 Ply Tri Rib New Universal
$206.00
Time Remaining: 6d 45m
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B1TI551  Tire Carlisle Turf Handlers Multi Trac 20 x 8 x 8
B1TI551 Tire Carlisle Turf Handlers Multi Trac 20 x 8 x 8
$104.69
Time Remaining: 6d 47m
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Pair 2 136x20 Tractor tire 136R20 Radial 136 20
Pair 2 136x20 Tractor tire 136R20 Radial 136 20
$695.00
Time Remaining: 6d 13h 43m
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2 20X1000 10 SMOOTH TURF TIRES GOLF GREENS MOWER FIT RANSOME JOHN DEERE TIRE
2 20X1000 10 SMOOTH TURF TIRES GOLF GREENS MOWER FIT RANSOME JOHN DEERE TIRE
$65.50
Time Remaining: 6d 14h 22m
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1 125L 20 Firestone Ag Tractor Traction Tire Power Implement I 3 4 Ply 314676
1 125L 20 Firestone Ag Tractor Traction Tire Power Implement I 3 4 Ply 314676
$225.00
Time Remaining: 6d 19h 43m
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6 Tires315 80R225 L 20 157 154M All Position Truck Tire 31580225366 766 668
6 Tires315 80R225 L 20 157 154M All Position Truck Tire 31580225366 766 668
$2,028.00
Time Remaining: 6d 21h 40m
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400 15 F2 Three Rib FRONT Tractor Tire With TUBE new Free Shipping
400 15 F2 Three Rib FRONT Tractor Tire With TUBE new Free Shipping
$68.75
Time Remaining: 6d 23h 27m
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NEW Michelin XMCL 380 75 R20 Tubeless Radial Tractor tire
NEW Michelin XMCL 380 75 R20 Tubeless Radial Tractor tire
$325.00
Time Remaining: 7d 12h 19m
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Primex Terra Turbo Flotation Tire 42x2500 20 16 ply
Primex Terra Turbo Flotation Tire 42x2500 20 16 ply
$59.00
Time Remaining: 7d 13h 43m

Tire 22x66 10 Dunlop 20 ply 180 mph
Tire 22x66 10 Dunlop 20 ply 180 mph
$98.00
Time Remaining: 7d 18h 15m
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implement farm tractor TUBE for 83 20 95 20 tire
implement farm tractor TUBE for 83 20 95 20 tire
$37.95
Time Remaining: 7d 21h 59m
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TWO TIRES 400 15 F2 Three Rib tractor FRONT tires With TUBES Free Shipping
TWO TIRES 400 15 F2 Three Rib tractor FRONT tires With TUBES Free Shipping
$127.70
Time Remaining: 7d 22h 43m
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B1KT114  Tire Kenda Turf 505 K505 20 x 10 x 8
B1KT114 Tire Kenda Turf 505 K505 20 x 10 x 8
$78.17
Time Remaining: 8d 33m
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B1KT122 Tire Kenda Turf Rider K358 20 x 8 x 8
B1KT122 Tire Kenda Turf Rider K358 20 x 8 x 8
$69.35
Time Remaining: 8d 33m
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B1KT7202 Tire Kenda Turf Rider K358 20 x 10 x 8
B1KT7202 Tire Kenda Turf Rider K358 20 x 10 x 8
$74.55
Time Remaining: 8d 1h 13m
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B1SB302  Tire Heavy Duty Pneumatic 20 x 2125
B1SB302 Tire Heavy Duty Pneumatic 20 x 2125
$15.57
Time Remaining: 9d 22m
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B1SB7202  Tire Carlisle Turf Handlers Turf Saver 20 x 10 x 8
B1SB7202 Tire Carlisle Turf Handlers Turf Saver 20 x 10 x 8
$110.02
Time Remaining: 9d 23m
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4 Tires 385 65R225 L 20 160K New All Position Truck Tire 38565225397 396
4 Tires 385 65R225 L 20 160K New All Position Truck Tire 38565225397 396
$1,580.00
Time Remaining: 9d 3h 12m
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8 Tires315 80R225 L 20 157 154M All Position Truck Tire 31580225366 766 668
8 Tires315 80R225 L 20 157 154M All Position Truck Tire 31580225366 766 668
$2,680.00
Time Remaining: 9d 3h 41m
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6 Tires 385 65R225 L 20 160K New All Position Truck Tire 38565225397 396
6 Tires 385 65R225 L 20 160K New All Position Truck Tire 38565225397 396
$2,310.00
Time Remaining: 9d 5h 24m
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20 Truck Skid Loader Imp Tire Valve Stems Wheel TR501
20 Truck Skid Loader Imp Tire Valve Stems Wheel TR501
$45.00
Time Remaining: 11d 20h 8m
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B1TI112 Tire Carlisle Big Biters Super Lug 20 x 10 x 8
B1TI112 Tire Carlisle Big Biters Super Lug 20 x 10 x 8
$118.87
Time Remaining: 12d 15h 12m
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B1TI115  Tire Carlisle Turf Handlers Turf Saver 20 x 8 x 10
B1TI115 Tire Carlisle Turf Handlers Turf Saver 20 x 8 x 10
$94.03
Time Remaining: 12d 15h 12m
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B1TI120 Tire Carlisle Turf Handlers Turf Saver 20 x 10 x 10
B1TI120 Tire Carlisle Turf Handlers Turf Saver 20 x 10 x 10
$122.38
Time Remaining: 12d 15h 13m
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B1TI121  Tire Carlisle Smooth Operators Straight Rib 20 x 10 x 10
B1TI121 Tire Carlisle Smooth Operators Straight Rib 20 x 10 x 10
$124.19
Time Remaining: 12d 15h 13m
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B1TI122  Tire Carlisle Turf Handlers Turf Saver 20 x 8 x 8
B1TI122 Tire Carlisle Turf Handlers Turf Saver 20 x 8 x 8
$97.56
Time Remaining: 12d 15h 13m
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B1TI20  Tire Carlisle Gripping Performers Stud 41 35 x 5
B1TI20 Tire Carlisle Gripping Performers Stud 41 35 x 5
$26.48
Time Remaining: 12d 16h 54m
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B1TI206 Tire Carlisle Turf Handlers Turf Saver II 20 x 8 x 8
B1TI206 Tire Carlisle Turf Handlers Turf Saver II 20 x 8 x 8
$88.71
Time Remaining: 12d 18h 3m
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14 20 MICHELIN TRUCK MILITARY GRAIN COMBINE WAGON MANURE SPREADER NICE TIRES
14 20 MICHELIN TRUCK MILITARY GRAIN COMBINE WAGON MANURE SPREADER NICE TIRES
$425.00
Time Remaining: 13d 10h 50m
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B1TI405 Tire Carlisle Turf Handlers Turf Master 20 x 10 x 8
B1TI405 Tire Carlisle Turf Handlers Turf Master 20 x 10 x 8
$126.65
Time Remaining: 13d 16h 4m
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B1TI412  Tire Carlisle Turf Handlers Turf Master 20 x 10 x 10
B1TI412 Tire Carlisle Turf Handlers Turf Master 20 x 10 x 10
$131.33
Time Remaining: 13d 16h 29m
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105 LR12 5LR 18 20 Farm Tractor Tire Inner Tube Radial or Bias
105 LR12 5LR 18 20 Farm Tractor Tire Inner Tube Radial or Bias
$25.00
Time Remaining: 13d 21h 47m
Buy It Now for only: $25.00

SET OF TWO TIRE FLAPS 1000R20 1000R20 TIRE FLAPS CENTER HOLE
SET OF TWO TIRE FLAPS 1000R20 1000R20 TIRE FLAPS CENTER HOLE
$41.95
Time Remaining: 14d 14h 28m
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SET OF TWO TIRE FLAPS 1100 1200R20 1100 1200R20 TIRE FLAPS CENTER HOLE
SET OF TWO TIRE FLAPS 1100 1200R20 1100 1200R20 TIRE FLAPS CENTER HOLE
$49.95
Time Remaining: 14d 14h 30m
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B1TI58  Tire Carlisle Smooth Operators Smooth 20 x 10 x 10
B1TI58 Tire Carlisle Smooth Operators Smooth 20 x 10 x 10
$126.00
Time Remaining: 14d 16h 11m
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1 New 750 20 Tube for Front Tractor Implement Wagon Tires FREE Shipping 281900
1 New 750 20 Tube for Front Tractor Implement Wagon Tires FREE Shipping 281900
$35.00
Time Remaining: 14d 16h 40m
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B1TI769  Tire Carlisle Turf Handlers Turf Trac R S 20 x 10 x 8
B1TI769 Tire Carlisle Turf Handlers Turf Trac R S 20 x 10 x 8
$113.53
Time Remaining: 14d 17h 32m
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B1TI774  Tire Carlisle Turf Handlers Turf Trac R S 20 x 10 x 10
B1TI774 Tire Carlisle Turf Handlers Turf Trac R S 20 x 10 x 10
$126.00
Time Remaining: 14d 17h 33m
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775 x14 tire and rim 20 tread item1000
775 x14 tire and rim 20 tread item1000
$40.00
Time Remaining: 15d 9h 28m
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BKT TR 171 R1 Deep Tread Rear Farm Tire 112x20
BKT TR 171 R1 Deep Tread Rear Farm Tire 112x20
$390.00
Time Remaining: 15d 10h 3m
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1 New 750 20 Tacoma 3 Rib F2 F 2 Farm Tractor Tire 8 ply 750x20 750x20 750 20
1 New 750 20 Tacoma 3 Rib F2 F 2 Farm Tractor Tire 8 ply 750x20 750x20 750 20
$135.00
Time Remaining: 15d 21h 3m
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TWO 750X20 750 20 Six ply Triple Rib Tractor Tires with Tubes
TWO 750X20 750 20 Six ply Triple Rib Tractor Tires with Tubes
$274.00
Time Remaining: 16d 10h 45m
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New 20 Hook for Farm Tractor Tire Dual Wheels Rims
New 20 Hook for Farm Tractor Tire Dual Wheels Rims
$13.00
Time Remaining: 16d 17h 10m
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2 Tires Carlisle Turf Saver 20 x 8 x 8 WITH RIMS
2 Tires Carlisle Turf Saver 20 x 8 x 8 WITH RIMS
$160.00
Time Remaining: 17d 12h 4m
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B1TI551 New Universal 20 x 8 x 8 Carlisle Turf Handlers Multi Trac Tire
B1TI551 New Universal 20 x 8 x 8 Carlisle Turf Handlers Multi Trac Tire
$103.00
Time Remaining: 17d 16h 51m
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184 30 MULTI TRAC TIRES CASE FORD JOHN DEERE TRACTOR PULL 20
184 30 MULTI TRAC TIRES CASE FORD JOHN DEERE TRACTOR PULL 20
$575.00
Time Remaining: 17d 23h 4m
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2 95 20 TITAN TRACTOR AG TIRE TIRES
2 95 20 TITAN TRACTOR AG TIRE TIRES
$350.00
Time Remaining: 18d 1h 28m
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Tire Aid 20 18 x 850 900 x 8 Replacement Tractor Inner Tube with Sealant
Tire Aid 20 18 x 850 900 x 8 Replacement Tractor Inner Tube with Sealant
$1.87
Time Remaining: 18d 16h 4m
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380 70R20 GOODYEAR DT810 TIRES W RIMS FOR JOHN DEERE COMPACT TRACTORS S91002
380 70R20 GOODYEAR DT810 TIRES W RIMS FOR JOHN DEERE COMPACT TRACTORS S91002
$600.00
Time Remaining: 18d 16h 56m
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One new 20 x 5 Flap for 600 20 650 20  700 20 antique truck tires
One new 20 x 5 Flap for 600 20 650 20 700 20 antique truck tires
$38.00
Time Remaining: 19d 15h 5m
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