What is ETRTO size?
Nowadays, bicycle tire sizes are all marked according to ETRTO (European Tire and Rim Technical Organization) standard. However, older English and French tire size dimensions are still used as well. The ETRTO size specification 37-622 indicates the width of 37 mm and the tire inner diameter of 622 mm.
Is ERD same as ETRTO?
ERD is the effective rim diameter, useful for building wheels. ETRTO is the European tire and rim technical organization, and is another measurement of circumference. 559 is the BSD of the tire and rim, Bead Seat Diameter. standard 26″ tires are 559mm, road tires are 622mm, etc.
What does ETRTO 622×19 mean?
The 622×19 spec is what you need to pay attention to. 622 is the diameter of the rim bead seat in mm. 19 is the inner width of the rim in mm. Look at your tires, if they are marked ‘ISO 622’ or ‘ETRTO 622’ or ‘700C’ (an French system label that is the same as ETRTO/ISO 622), then they are 622mm diameter.
How is ETRTO measured?
The ETRTO number is the Bead Set Diameter (BSD) x the Inner rim width e.g. 559 x 19 or 622 x 19. If the ETRTO size matches it means the Gecko tyre will fit on your wheel rim.
What is a 559 tire?
1 (54-559), which denotes a tire with 26 inches in diameter (559 mm) and the width of 2.1 inch (54 mm). Other accepted measure is the so called French standard that gives an approximate outer diameter and the width of the tire, i.e. 700x35C – approximate outer diameter (700 mm) and tire width (35 mm).
What is ERTO?
What is ERTO? ETRTO is the European tire and rim technical organization, and is professional measurement of circumference. Many countries use their size standards as the specifications for bike size manufacturing, so as to avoid confusion in various sizes.
How do you read an ETRTO file?
The ETRTO size specification 37-622 indicates the width of 37 mm and the tire inner diameter of 622 mm. This dimension is clear and allows a precise classification of the rim size. The inch marking (e.g. 28 x 1.40) states the approximate outer diameter (28 inches) and the tire width (1.40 inches).
What is the size of the ISO/ETRTO document?
ISO / ETRTO (mm) English size (inch) 20-559 26 × 3⁄4 23-559 26 × 0.90 26 × 7⁄8 25-559 26 × 1.00 28-559 26 × 1.10
What size tires do I need for my ETRTO?
ETRTO English Size FRENCH SIZE German Size Find tires 37-584 26 x 1½ x 1-3/8 Find tires 47-559 26 x 2 x 1-3/4 26 x 1,75 x 2 Find tires 32-541 24 x 1-3/8 x 1-1/4 600A 600 x 32A Find tires 40-540 24 x 1-3/8 x 1½ Find tires
What does ETRTO mean on bikes?
Found mostly on mountain bikes and used as a marketing term for wider 622 mm / 700C tires ISO / ETRTO (mm) English size (inch) 50-622 28 × 1.90 28 × 2.00 29 × 2.00 54-622 28 × 2.10 29 × 2.10
What is the ETRTO English size table?
The table allows you to convert between ETRTO, English-, French-and German targets, and rim circumference etc. ETRTO English Size FRENCH SIZE German Size Rim circumference (mm) Find tires 40-635 28 x 1½ 700B standard 28 x 1½ 1994 Find tires 47-622 28 x 1,75 700 x 47C 28 x 1,75 1995 Find tires 40-622 28 x 1-5/8 x 1-3/4
