Trek Rally WaveCel Mountain Bike Helmet

Size Circumference
S
52 - 56 cm 20" - 22"
M
55 - 59 cm 22" - 23"
L
58 - 62 cm 23" - 24"
XL
61 - 64 cm 24" - 25"
Trek Rally WaveCel Mountain Bike Helmet
Trek Rally WaveCel Mountain Bike Helmet - Image 2
Trek Rally WaveCel Mountain Bike Helmet - Image 3
Trek Rally WaveCel Mountain Bike Helmet - Image 4

Trek Rally WaveCel Mountain Bike Helmet

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Please note that backorders have a lead time of 7 working days. You will be updated via email once your product is ready to ship. Thank you for your patience and understanding!

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Size Guide

Trek Rally WaveCel Mountain Bike Helmet

Size Circumference
S
52 - 56 cm 20" - 22"
M
55 - 59 cm 22" - 23"
L
58 - 62 cm 23" - 24"
XL
61 - 64 cm 24" - 25"

The Rally WaveCel is a trail-tested 5-star MTB helmet with updated lighter and cooler WaveCel safety technology designed for comfort and protection.

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Mountain Bike Sizes

Size
S 163cm - 172cm
M 171cm - 180cm
L 179cm - 188cm
XL 187cm - 198cm

Helmet Sizes

Size Circumference
S 52 - 56 cm 20" - 22"
S/M 51 - 58 cm 20" - 23"
M 55 - 59 cm 22" - 23"
ML 55 - 61 cm 22" - 24"
L 58 - 62 cm 23" - 24"
XL 61 - 64 cm 24" - 25"

Road Bike Sizes

Size
XS 157cm - 169cm
S 165cm - 175cm
M 171cm - 181cm
ML 177cm - 187cm
L 183cm - 193cm
XL 189cm - 199cm

Mountain Bike Sizes

Size Rider Height Inseam
S 153 - 167 cm 5'0" - 5'6" 72 - 79 cm 28" - 31"
M 161 - 175 cm 5'3" - 5'9" 76 - 82 cm 30" - 32"
L 174 - 188 cm 5'9" - 6'2" 82 - 88 cm 32" - 35"
XL 186 - 196 cm 6'1" - 6'5" 87 - 92 cm 34" - 36"

Road Bike Sizes

Size Rider Height Inseam
47 152 - 158 cm 5'0" - 5'2" 71 - 75 cm 28" - 30"
50 158 - 163 cm 5'2" - 5'4" 74 - 77 cm 29" - 30"
52 163 - 168 cm 5'4" - 5'6" 76 - 79 cm 30" - 31"
54 168 - 174 cm 5'6" - 5'9" 78 - 82 cm 31" - 32"
56 174 - 180 cm 5'9" - 5'11" 81 - 85 cm 32" - 33"
58 180 - 185 cm 5'11" - 6'1" 84 - 87 cm 33" - 34"
60 185 - 190 cm 6'1" - 6'3" 86 - 90 cm 34" - 35"
62 190 - 195 cm 6'3" - 6'5" 89 - 92 cm 35" - 36"

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