Challenge Gravel Grinder Pro 700x40C gravel cover, TLR, kevlar, Black/Tan
The Gravel Grinder tire is a combination of a fast-rolling diamond pattern in the center of the tread and an aggressive pattern on the sides to help you navigate soft, muddy and unpaved terrain.
The sample based on the Chicane cyclocross wheels is characterized by an excellent combination of low rolling resistance and at the same time security in turns thanks to the side protrusions.
SuperPoly material and Corazza Armor protection together with 2x PPS layers form a durable and reliable shell.
The tires have a cord of 260 TPI and are only compatible with hooked rims.
Color: black/brown
Cover design: tubeless
ETRTO: 33-622 / 36-622 / 40-622
Series: Gravel Grinder TLR Pro
Technology: Corazza Armor, PPS2
Reflective stripe: no
Recommended pressure: 1.7-3 bar
TPI: 260 TPI
Weight: 355 g/470 g
| Tubeless | Yes |
| Material | kevlar |
| Colour | black/tan |
| product ID | 212383 |
PSI - indicates the pressure to which the manufacturer recommends inflating the tire. 1 atmosphere = 14.7 PSI
TPI (EPI) - the density of the shell's skeleton fibres. The higher the TPI value, the more flexible and flexible the tire will be.
Kevlar tire - foot made of Kevlar fibres. The cover can be folded, so it is more practical when moving or storing. It is characterized by a lower weight compared to wire casings and a higher resistance to puncture.
Wire tire - bead made of wire. The shell is inflexible, it is heavier than the Kevlar one.
Overview of tire sizes and markings
| Size chart | ETRTO | Dimension in inches | French label |
|---|---|---|---|
| 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, 1 1/16 | 700 x 25C | |
| 28-622 | 28 x 1.20 | 700 x 28C | |
| 30-622 | 28 x 1 5/8 x 1 1/8 | 700 x 30C | |
| 32-622 | 28 x 15/8 x 11/4 | 700 x 32C 700C COURSE | |
| 35-622 | 28 x 15/8 x 13/8 | 700 x 35C | |
| 37-622 | 28 x 1 5/8 x 1 3/8 | 700 x 35C | |
| 40-622 | 28 x 1.50 28 x 1 5/8 x 1 1/2 | 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 | ||
| 60-622 | 28 x 2.35 | ||
| 32-635 | 28 x 1 1/2 x 1 1/8 | 770 x 28B 700 x 28B 770B COURSE | |
| 40-635 | 28 x 1 1/2 28 x 1 1/2 x 1 3/8 | 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 1 3/8 x 1 1/8 | 700 x 28A | |
| 37-642 | 28 x 1 3/8 | 700 x 35A |
| Tire width in mm | Wheel rim in mm | |||||||||
| 13C | 15C | 17C | 19C | 21C | 23C | 25C | 27C | 29C | ||
| 18 | X | |||||||||
| 20 | X | |||||||||
| 23 | X | X | ||||||||
| 25 | X | X | X | |||||||
| 28 | X | X | X | X | ||||||
| 32 | X | X | X | X | ||||||
| 35 | X | X | X | |||||||
| 37 | X | X | X | X | ||||||
| 40 | X | X | X | X | ||||||
| 42 | X | X | X | X | X | |||||
| 44 | X | X | X | X | X | |||||
| 47 | X | X | X | X | X | X | ||||
| 50 | X | X | X | X | X | X | ||||
| 52 | X | X | X | X | X | X | X | |||
| 54 | X | X | X | X | X | X | ||||
| 57 | X | X | X | X | X | X | ||||
| 60 | X | X | X | X | X | X | ||||
| 62 | X | X | X | X | X | X |
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