Schwalbe Inner Tube 20" 40/62-406 SV7 40mm

EAN 4026495933629
Brand: Schwalbe
Product Model: 923148

In Stock : +/- 2 Business Days

Information
Size Chart
Supplier Info

This Air Plus inner tube from Schwalbe is a heavy-duty everyday option for 20-inch wheels, designed to fit tire widths from 40 millimeters up to 62 millimeters for folding bikes, compact city bikes, kids' bikes, and small-wheel utility builds. The Air Plus construction uses thicker rubber to enhance puncture resistance and help the tube maintain pressure longer, making it ideal for bikes that carry more load or are ridden daily. The 40/62-406 sizing accommodates common 20-inch tires from 40-406 (20 x 1.50 inch) to 62-406 (20 x 2.50 inch), including popular sizes like 47-406, 50-406, 54-406, 57-406, and 60-406. It features a SV (French) valve with a 40 millimeter length for easy inflation on standard 20-inch rim depths.

- 40/62-406 sizing covers 40-406 (20 x 1.50 inch) up to 62-406 (20 x 2.50 inch)
- Fits 47-406 (20 x 1.75 inch) and 50-406 (20 x 2.00 inch) for common 20-inch setups
- Supports 54-406 (20 x 2.10 inch) and 57-406 (20 x 2.125 inch) for wider comfort tires
- Also fits 60-406 (20 x 2.35 inch) for high-volume small wheel builds
- 40 mm valve length suits standard 20-inch rim depths for easy access
- Air Plus thicker rubber helps improve puncture resistance on daily rides
- Better air retention helps reduce frequent pressure top-ups
- SV (Presta) for precise pressure control with standard pumps

Specifications
Brand: Schwalbe
Model: Air Plus
Type: Inner tube
Size: 20"
ETRTO: 40/62-406
Valve Length: 40 mm
Valve Type: SCV (Click)
Color: Black

Hollandbikeshop.com Tire Chart

Which tire fits which rim?

The so-called ETRTO size (European Tire and Rim Technical Organisation) consists of two numbers:
the first is the width of the tire in millimeters and the second is the diameter of the tire in millimeters.
City bikes usually have tire size 37-622: a 37 mm width and a 622 mm diameter.
The tire width must match the rim width.
The following chart shows possible combinations of tire widths and rim widths according to ETRTO.

ETRTO Tire Size Chart
Inches	ETRTO	Inch Sizes	French (mm)
7"	47-93	7 x 13/4
8"	47-94	20 x 47-50 8 x 2
50-94	200 x 50
54-110	81/2 x 21/8 81/2 x 2
32-137	10 x 2 10 x 11/4
10"	54-152 44-194	10 x 2 10 x 15/8
11"	47-222	11 x 13/4
12"	47-203	121/2 x 1.75 121/2 x 1.90
50-203	12 x 2.00
54-203	12 x 1.95
57-203	121/2 x 21/4 R
62-203	121/2 x 21/4
32-239	121/2 x 13/8 x 11/4	300 x 32A
57-239	121/2 x 21/4	300 x 55A
14"	57-251	141/2 x 21/4	300 x 55A
47-254	14 x 1.75 14 x 1.90
50-254	14 x 2.00
40-279	14 x 11/2	350 x 38B
37-288	14 x 15/8 x 13/8	350A,350A Confort 350A Ballon, 350A 1/2 Ballon 350 x 32A
40-288	14 x 15/8	350 x 38A
44-288	14 x 15/8 x 13/8	350A 350 x 42A
32-298	14 x 11/4	350A 350 x 32A
16"	40-305	16 x 1.50
47-305	16 x 1.75 16 x 1.90
50-305	16 x 2.00
54-305	16 x 1.95 16 x 2.00
57-305	16 x 2.125
40-330	16 x 1 1/2	400 x 38B
28-340		400 x 30A
32-340	16 x 1 3/8 x 1 1/4	400A 400 x 32A
37-340	16 x 1 3/8	400 35A 400A Confort 400A Ballon 400A 1/2 Ballon
44-340	16 x 1 5/8
28-349	16 x 1 1/8
32-349	16 x 1 1/4 NL
35-349	16 x 1.35
37-349	16 x 1 3/8
17"	32-357	17 x 1 1/4
32-369	17 x 1 1/4
18"	28-355	18 x 1 1/8
35-355	18 x 1.35
40-355	18 x 1.50
47-355	18 x 1.75 18 x 1.90
50-355	18 x 2.00
37-387	18 x 1 3/8
40-387	18 x 1 1/2
28-390	18 x 1 1/8	450 x 28A 450A
37-390	18 x 1 3/8	450 x 35A 450A 450A Confort 450A Ballon 450A 1/2 Ballon
55-390		450 x 55A
57-390		450 x 55A 450A
37-400	18 x 1 3/8
20"	54-400	20 x 2 x 1 3/4 20 x 2 F 4J
28-406	20 x 1 1/8
32-406	20 x 1.25
35-406	20 x 1.35
37-406	20 x 1 3/8
40-406	20 x 1.50
42-406	20 x 1.60
44-406	20 x 1.625
47-406	20 x 1.75 20 x 1.90
50-406	20 x 2.00
54-406	20 x 2.00
57-406	20 x 2.125
60-406	20 x 2.35
54-428	20 x 2.00
40-432	20 x 1 1/2
37-438	20 x 1 3/8	500A
40-438	20 x 1 3/8 x 1 1/2	500 x 38A
28-440		500 x 28A 500A 500A Standard
37-440		500 x 35A 500A Confort 500A Ballon 500A 1/2 Ballon
40-440	20 x 1 1/2 NL	500 x 38A
28-451	20 x 1 1/8
37-451	20 x 1 3/8 B.S.
22"	44-484	22 x 1 5/8 x 1 1/2
25-489	22 x 1.00
37-489	22 x 1 3/8 NL
40-489	22 x 1 3/8 x 1 1/2
50-489	22 x 2.00
28-490		550 x 28A 550A 550A Standard
32-490	22 x 1 3/8 x 1 1/4	550 x 32A 550A
37-490	22 x 1 3/8	550 x 35A 550A Confort 550A Ballon 550A 1/2 Ballon
37-498	22 x 1 3/8 x 1 1/4
32-501	22 x 1 1/4
37-501	22 x 1 3/8
24"	40-507	24 x 1.50
44-507	24 x 1.625 24 x 1.75
47-507	24 x 1.75 24 x 1.85/1.90
49-507	24 x 1.85
50-507	24 x 1.90/2.00 24 x 2.00 24 x 2.125
54-507	24 x 2.10
57-507	24 x 2.125 24 x 2.00
60-507	24 x 2.35
62-507	24 x 2.40
23-520	24 x 7/8
44-531	24 x 1 5/8 x 1 1/2
40-534	24 x 1 1/2
25-540	24 x 1.00
32-540	24 x 1 3/8 x 1 1/4> 24 x 1 3/8
37-540	24 x 1 3/8
40-540	24 x 1 3/8 x 1 1/2
22-541
25-541		600 x 25A
28-541		600 x 28A 600A 600A Standard
32-541	24 x 1 3/8 x 1 1/4 NL	600 x 32A
37-541		600 x 35A 600A Confort 600A Ballon 600A 1/2 Ballon
25"	57-520	25 x 2.25
26"	25-559	26 x 1.00
28-559	26 x 1.10
35-559	26 x 1.35
37-559	26 x 1 5/8 x 1 3/8 26 x 1.40
40-559	26 x 1.50
42-559	26 x 1.60
44-559	26 x 1.625 26 x 1.50/1.75
47-559	26 x 1.75 26 x 1.85/1.90
50-559	26 x 1.90 26 x 1.95 26 x 1.90/2.00 26 x 2.00/2.10
54-559	26 x 1.95 26 x 2.10 26 x 2.125
57-559	26 x 2.125
57-559	26 x 2.20/2.25
60-559	26 x 2.35
62-559	26 x 2.40 26 x 2.50
20-571	26 x 3/4	650 x 20C
23-571	26 x 7/8	650 x 22C
40-571	26 x 11/2 CS 26 x 13/8 x 11/2 NL 26 x 15/8 x 11/2	650 x 35C 650 x 38C
47-571	26 x 13/4 650 CS Confort	650 x 45C
54-571	26 x 2 x 13/4	650 x 50C
28-584	26 x 11/8 x 11/2	650 x 28B
32-584		650 x 32B
35-584	26 x 13/8 x 11/2	650 x 35B 650B Standard
37-584	26 x 11/2 x 13/8 26 x 11/2	650 x 35B
40-584	26 x 15/8 x 11/2 26 x 11/2	650 x 35B 650 x 38B
44-584	26 x 15/8 x 11/2	650 x 42B 650B Semi-Confort 650B 1/2 Ballon
54-584	26 x 11/2 x 2
20-590		650 x 20A
25-590	26 x 11/8 x 11/4 26 x 13/8 x 11/8 - 11/4	650 x 25A
28-590	26 x 11/8	650 x 28A
32-590	26 x 11/4 26 x 13/8 x 11/4	650 x 32A
35-590	26 x 13/8	650 x 35A
37-590	26 x 13/8	650 x 35A 650A
40-590	26 x 1.50 26 x 13/8 x 11/2	650 x 38A
44-590
32-597	26 x 11/4
27"	40-609	27 x 11/2
20-630	27 x 3/4
22-630	27 x 7/8
25-630	27 x 1.00 27 x 11/16
28-630	27 x 11/8 27 x 11/4 Fifty 27 x 11/4
32-630	27 x 11/4
28/32-630	27 x 11/4
35-630	27 x 13/8
28"	18-622	28 x 3/4	700 x 18C
19-622		700 x 19C
20-622	28 x 3/4	700 x 20C
22-622	28 x 7 / 8	700 x 22C
23-622	28 x 7 /8	700 x 23C
25-622	28 x 1.00 28 x 11/16	700 x 25C
28-622	28 x 1.10 28 x 15/8 x 11/8	700 x 28C
30-622	28 x 1.20	700 x 30C
32-622	28 x 1.25 28 x 15/8 x 11/4	700 x 32C 700 COURSE
35-622	28 x 1.35 28 x 15/8 x 13/8	700 x 35C
37-622	28 x 1.40 28 x 15/8 x 13/8	700 x 35C
40-622	28 x 1.50 28 x 15/8 x 11/2	700 x 38C
42-622	28 x 1.60	700 x 40C
44-622	28 x 1.625	700 x 42C
47-622	28 x 1.75	700 x 45C
50-622	28 x 1.90 28 x 2.00
54-622	28 x 2.10 29 x 2.10
57-622	28 x 2.10 29 x 2.10
60-622	28 x 2.35
32-635	28 x 11/2 x 11/8	770 x 28B 700 x 28B 770B COURSE
40-635	28 x 11/2 28 x 11/2 x 13/8	700 x 38B 700 x 35B 700 Standard 700B Standard
44-635	28 x 15/8 x 11/2	700 x 40/42B
28-642	28 x 13/8 x 11/8	700 x 28A
37-642	28 x 13/8	700 x 35A