




Shoes Bontrager GR2 Gravel Bike for unlimited adventures for the groad less traveled. It is perfect for a long adventure, endurance race, or even cyclocross race with a more contemporary look accustomed to the modern-day gravel rider. It features the infinite adjustability of laces and includes a useful lace catcher to clean up clutter. Order now!
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Whether you’re looking for bike shoes that fit wide feet or the perfect shoe for race performance, we’re here to help you. Trek and Bontrager cycling shoes are designed for maximum comfort and optimal performance while riding. Use the chart below to learn how to measure your foot correctly.
| Size | BUST | WAIST | HIP | |||
|---|---|---|---|---|---|---|
| inches | cm | inches | cm | inches | cm | |
| XS (2-4) | 32"-33" | 81-84 | 24"-26" | 61-66 | 33"-35" | 84-89 |
| S (4-6) | 33"-34" | 84-86 | 26"-28" | 66-71 | 35"-37" | 89-94 |
| M (6-8) | 34"-36" | 86-91 | 28"-30" | 71-76 | 37"-39" | 94-99 |
| L (10-12) | 36"-38" | 91-97 | 30"-32" | 76-81 | 39"-41" | 99-104 |
| XL (12-14) | 38"-40" | 97-102 | 32"-34" | 81-84 | 41"-43" | 104-109 |
| 2XL (16-18) | 41"-44" | 104-112 | 35"-38" | 89-97 | 44"-47" | 112-119 |
| 3XL (18-20) | 44"-47" | 112-119 | 38"-41" | 97-104 | 47"-50" | 119-127 |
| 4XL (22-24) | 48"-51" | 122-129 | 42"-45" | 107-114 | 51"-54" | 130-137 |
To find the right shoe size for you, all you need is a blank sheet of paper and a pen. Follow these steps:




Insoles come in various shapes based on brand and the shoe’s purpose, affecting width, depth, height, and overall fit. Trek and Bontrager offer shoes designed around several different insoles to meet all riding goals for maximum performance. The types includes:
This last features a snug, high-performance fit optimized for the rider’s movements. It replaces the Bontrager inForm Pro insole but is slightly wider at the ball of the feet, providing a better fit for more riders.
The Trek Comp last offers a performance fit with a bit more room. It replaces the Bontrager inForm Race last and has been updated to better fit riders’ feet by widening the ball of the foot.
This is a performance-fit last with a slightly roomier fit from the ball through the mid-foot.
A comfortable last with a flatter foot position, providing more versatility and utility.
A relaxed, roomier fit similar to a cross-trainer, combining comfort for both on-bike and off-bike use.

Place your bare foot in a small amount of water, ensuring that the entire bottom of your foot is submerged in the water.

Gently place your wet foot on a dark piece of paper so that it leaves a visible impression of your foot arch.

Dry your foot, then compare the impression with the Trek Arch Index below to determine which of the three insole heights best fits your arch shape. Repeat these steps with your other foot.
The Shoes Bontrager GR2 Gravel Bike is perfect for a long adventure, endurance race, or even cyclocross race with a more contemporary look accustomed to the modern-day gravel rider. It features the infinite adjustability of laces and includes a useful lace catcher to clean up clutter. The GR2 can also easily scramble through rough terrain thanks to the outsole's unmatched grip and traction allowing you to stay stable on a variety of surfaces.
inForm Race last offers a slightly roomier, high-performance fit. The nylon composite Bronze Series sole provides stiff yet walkable performance. Classic lace closure system with convenient elastic lace keeper. Tachyon rubber outsole allows great grip in all terrains. Stiffness index 6 of 14 Durable, GnarGuard rubberized coating protects against abrasions and fights debris. Compatible with 2-bolt SPD-style cleats.
Size
36
37
38
38.5
39
40
40.5
41
41.5
42
42.5
43
43.5
44
44.5
45
45.5
46
47
48
US Men
3.5
4
5
5.5
6
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
14
14.5
US Women
5
5.5
6.5
7
7.5
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
13.5
14.5
15.5
16
UK Men
2.5
3
4
4.5
5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
13
13.5
UK Women
4
4.5
5.5
6
6.5
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14.5
15
CM
23
23.7
24.3
24.7
25
25.7
26
26.3
26.7
27
27.3
27.7
28
28.3
28.7
29
29.3
29.7
30.3
31
Heel to toe (cm)
22.4
23.1
23.7
24
24.3
25
25.3
25.5
25.9
26.2
26.5
26.9
27.1
27.4
27.8
28.1
28.3
28.7
29.3
29.9
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