Challenge Gravel Grinder 700x42C gravel jacket, TLR, kevlar
Fast pattern taken from cyclocross tires in tubeless design, ideal for gravel.
Challenge Gravel Grinder TLR is a tire specifically designed for gravel wheels that allows tubeless use.
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.
The nylon sides of the tire guarantee excellent driving characteristics and sufficient resistance against punctures.
Color: black
French marking: 700x38 / 700x42
Width: 38/42 mm
ETRTO: 38-622,
Pressure: 2.1-4.1 Bar
TPI: 120 TPI
Weight: 450 g
Technology: TLR
Shell heel: Kevlar
Load capacity: 120 kg
Color: black
Colour | black |
Tubeless | Yes |
Material | kevlar |
product ID | 83940 |
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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