Bike helmet size chart
A size L is not a size L. This is every size, from every brand we track (115 models, 19 brands), with the head circumference it actually covers — in centimetres and inches.
Head circumference to helmet size
The middle column is the size label most brands would give you at that measurement — useful as a starting point, useless as a promise. That is what the last column is for.
| Head | In inches | Usual size | Models that fit | |
|---|---|---|---|---|
| 50 cm | 19.7 in | S | 14 | See the 14 that fit |
| 51 cm | 20.1 in | S | 61 | See the 61 that fit |
| 52 cm | 20.5 in | S | 95 | See the 95 that fit |
| 53 cm | 20.9 in | S | 109 | See the 109 that fit |
| 54 cm | 21.3 in | S | 113 | See the 113 that fit |
| 55 cm | 21.7 in | S | 114 | See the 114 that fit |
| 56 cm | 22.0 in | M | 114 | See the 114 that fit |
| 57 cm | 22.4 in | M | 114 | See the 114 that fit |
| 58 cm | 22.8 in | M | 114 | See the 114 that fit |
| 59 cm | 23.2 in | L | 114 | See the 114 that fit |
| 60 cm | 23.6 in | L | 113 | See the 113 that fit |
| 61 cm | 24.0 in | L | 111 | See the 111 that fit |
| 62 cm | 24.4 in | L | 72 | See the 72 that fit |
| 63 cm | 24.8 in | L | 39 | See the 39 that fit |
| 64 cm | 25.2 in | XL | 16 | See the 16 that fit |
| 65 cm | 25.6 in | XL | 9 | See the 9 that fit |
Full size chart, by brand
All 115 models we track, grouped by brand, with the head circumference each size covers. This is the table that makes the point: an L is anywhere from 56 to 63 cm depending on who made it.
ABUS full ABUS size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Hyban 2.0 | Urban | M — 52-58 cm (20.5-22.8 in) L — 56-61 cm (22.1-24.0 in) XL — 58-63 cm (22.9-24.8 in) | Not rated | ~€65 |
| MoDrop MIPS | MTB | S — 51-55 cm (20.1-21.6 in) M — 52-58 cm (20.5-22.8 in) L — 57-61 cm (22.5-24.0 in) | ★★★★☆ 4/5 | Check price |
| Pedelec 2.0 | Urban | M — 52-57 cm (20.5-22.4 in) L — 56-62 cm (22.1-24.4 in) | Not rated | Check price |
Bell full Bell size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| 4Forty MIPS | MTB | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) XL — 61-65 cm (24.1-25.5 in) | Not rated | ~€87 |
| Avenue MIPS | Road | Universal S/M — 50-57 cm (19.7-22.4 in) Universal M/L — 53-60 cm (20.9-23.6 in) Universal XL — 58-63 cm (22.9-24.8 in) | Not rated | ~€47 |
| Daily LED MIPS | Urban | Universal Adult — 53-60 cm (20.9-23.6 in) | Not rated | ~€77 |
| Falcon XR MIPS | Road, Gravel | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | Not rated | ~€130 |
| Nomad 2 MIPS | MTB | Universal S/M — 52-57 cm (20.5-22.4 in) Universal M/L — 53-60 cm (20.9-23.6 in) | Not rated | ~€45 |
Bern full Bern size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Hendrix MIPS | Urban | S — 52-55.5 cm (20.5-21.8 in) M — 55.5-59 cm (21.9-23.2 in) L — 59-62 cm (23.3-24.4 in) | Not rated | ~€104 |
| Macon 2.0 MIPS | Urban | S — 52-55.5 cm (20.5-21.8 in) M — 55.5-59 cm (21.9-23.2 in) L — 59-62 cm (23.3-24.4 in) | ★★★★☆ 4/5 | ~€77 |
| Watts 2.0 MIPS | Urban | S — 52-55.5 cm (20.5-21.8 in) M — 55.5-59 cm (21.9-23.2 in) L — 59-62 cm (23.3-24.4 in) | Not rated | ~€112 |
Endura full Endura size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Hummvee Plus MIPS | MTB, Urban | S-M — 51-56 cm (20.1-22.0 in) M-L — 55-59 cm (21.7-23.2 in) L-XL — 58-63 cm (22.9-24.8 in) | ★★☆☆☆ 2/5 | ~€75 |
Fox full Fox size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Crossframe Pro | MTB, Gravel | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★★ 5/5 | ~€147 |
| Mainframe MIPS | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★☆☆ 3/5 | ~€83 |
| Speedframe | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★☆☆ 3/5 | ~€110 |
Giant full Giant size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Compel ARX | Urban | S-M — 49-57 cm (19.3-22.4 in) | Not rated | ~€39.9 |
| Path Mips | MTB | S/M — 49-57 cm (19.3-22.4 in) M/L — 53-61 cm (20.9-24.0 in) | ★★★★☆ 4/5 | ~€59.9 |
| Rail Mips | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★☆ 4/5 | ~€145 |
| Relay Mips | Road | S/M — 49-57 cm (19.3-22.4 in) M/L — 53-61 cm (20.9-24.0 in) | ★★★★☆ 4/5 | ~€54.9 |
| Rev Comp Mips | Road | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★☆ 4/5 | ~€95 |
| Rev Elite Mips | Road | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★☆ 4/5 | ~€145 |
| Rev Pro Mips | Road | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★★ 5/5 | ~€249 |
| Roost | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | Not rated | ~€65 |
| Roost Mips | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★★ 5/5 | ~€99 |
Giro full Giro size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Agilis MIPS | Road | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | Not rated | ~€60 |
| Aries Spherical | Road | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★★ 5/5 | Check price |
| Eclipse Spherical | Road | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★☆ 4/5 | ~€179 |
| Fixture II MIPS | MTB, Urban | Universal Adult — 54-61 cm (21.3-24.0 in) | Not rated | Check price |
| Fixture II MIPS XL | MTB, Urban | Universal XL — 58-65 cm (22.9-25.5 in) | Not rated | Check price |
| Helios Spherical | Road, Gravel | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★☆ 4/5 | Check price |
| Manifest Spherical | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★☆ 4/5 | ~€127 |
| Radix MIPS | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) XL — 63-65 cm (24.9-25.5 in) | Not rated | ~€87 |
| Syntax MIPS | Road, Gravel | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) XL — 63-65 cm (24.9-25.5 in) | ★★★☆☆ 3/5 | ~€150 |
| Tyrant Spherical | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-63 cm (23.3-24.8 in) | ★★★★☆ 4/5 | Check price |
HJC full HJC size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Atara | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) | Not rated | ~€89 |
| Bellus | Urban | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) | Not rated | ~€100 |
| Furion 3 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-63 cm (22.9-24.8 in) | Not rated | ~€209 |
| Ibex 3 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-63 cm (22.9-24.8 in) | Not rated | ~€259 |
| Valeco 2 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) | Not rated | ~€139 |
Kask full Kask size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Mojito³ | Road | S — 50-56 cm (19.7-22.0 in) M — 52-58 cm (20.5-22.8 in) L — 59-62 cm (23.3-24.4 in) | Not rated | ~€149 |
| Protone Icon | Road, Gravel, MTB | S — 50-56 cm (19.7-22.0 in) M — 52-58 cm (20.5-22.8 in) L — 59-62 cm (23.3-24.4 in) | Not rated | ~€219 |
| Sintesi | Road, Gravel, MTB, Urban | M — 52-58 cm (20.5-22.8 in) L — 59-62 cm (23.3-24.4 in) | Not rated | ~€100 |
| Urban R | Urban | S/M — 51-57 cm (20.1-22.4 in) M/L — 54-59 cm (21.3-23.2 in) L/XL — 60-63 cm (23.7-24.8 in) | Not rated | ~€210 |
Lazer full Lazer size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Cage KinetiCore | MTB | XS — 52-54 cm (20.5-21.2 in) S — 54-56 cm (21.3-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-60 cm (22.9-23.6 in) XL — 60-62 cm (23.7-24.4 in) | ★★★★☆ 4/5 | Check price |
| CityZen KinetiCore | Urban | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) XL — 61-64 cm (24.1-25.1 in) | ★★★☆☆ 3/5 | ~€65 |
| Coyote KinetiCore | MTB | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | Check price |
| Jackal KinetiCore | MTB | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) XL — 61-64 cm (24.1-25.1 in) | ★★★☆☆ 3/5 | ~€190 |
| Strada KinetiCore | Road, Gravel, Urban | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) XL — 61-64 cm (24.1-25.1 in) | ★★★☆☆ 3/5 | ~€120 |
| Tonic KinetiCore | Road, Urban | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) XL — 61-64 cm (24.1-25.1 in) | ★★★☆☆ 3/5 | ~€70 |
| Z1 KinetiCore | Road | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-61 cm (22.9-24.0 in) | ★★★★★ 5/5 | Check price |
MET full MET size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Downtown MIPS | Urban | S/M — 52-58 cm (20.5-22.8 in) M/L — 58-61 cm (22.9-24.0 in) | ★★★★★ 5/5 | ~€80 |
| Estro MIPS | Road, Gravel | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | Not rated | ~€140 |
| Idolo MIPS | Road | UN — 52-59 cm (20.5-23.2 in) XL — 59-64 cm (23.3-25.1 in) | Not rated | ~€100 |
| Miles MIPS | Urban | S/M — 52-58 cm (20.5-22.8 in) M/L — 58-61 cm (22.9-24.0 in) | ★★★★★ 5/5 | ~€80 |
| Revo | MTB | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | ~€200 |
| Rivale MIPS | Road | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | ~€170 |
| Shelter | MTB | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) XL — 60-64 cm (23.7-25.1 in) | ★★★★☆ 4/5 | ~€80 |
| Terrae | MTB | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | ~€150 |
| Terranova MIPS | MTB | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | ~€70 |
| Trenta 3K Carbon MIPS | Road, Gravel | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | ★★★★★ 5/5 | ~€400 |
| Trenta MIPS | Road | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | ~€260 |
| Vinci MIPS | Road | S — 52-56 cm (20.5-22.0 in) M — 56-58 cm (22.1-22.8 in) L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | ~€120 |
POC full POC size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Axion Race MIPS | MTB | XS — 48-52 cm (18.9-20.4 in) S — 51-54 cm (20.1-21.2 in) M — 55-58 cm (21.7-22.8 in) L — 59-62 cm (23.3-24.4 in) | Not rated | ~€90 |
| Cularis | MTB | S — 51-54 cm (20.1-21.2 in) M — 55-58 cm (21.7-22.8 in) L — 59-62 cm (23.3-24.4 in) | ★★★★★ 5/5 | ~€230 |
| Cytal | Road, Gravel | S — 50-56 cm (19.7-22.0 in) M — 54-59 cm (21.3-23.2 in) L — 56-61 cm (22.1-24.0 in) | ★★★★★ 5/5 | ~€320 |
| Cytal Carbon | Road, Gravel | S — 50-56 cm (19.7-22.0 in) M — 54-59 cm (21.3-23.2 in) L — 56-61 cm (22.1-24.0 in) | ★★★★☆ 4/5 | ~€400 |
| Kortal Race MIPS | MTB | XS-S — 51-54 cm (20.1-21.2 in) M-L — 55-58 cm (21.7-22.8 in) XL-XXL — 59-62 cm (23.3-24.4 in) | Not rated | ~€270 |
| Omne Air MIPS | Road, Urban | S — 50-56 cm (19.7-22.0 in) M — 54-59 cm (21.3-23.2 in) L — 56-61 cm (22.1-24.0 in) | Not rated | ~€180 |
| Ventral Air MIPS | Road, Gravel | S — 50-56 cm (19.7-22.0 in) M — 54-59 cm (21.3-23.2 in) L — 56-61 cm (22.1-24.0 in) | Not rated | ~€260 |
SCOTT full SCOTT size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Argo Plus | MTB | S/M — 54-58 cm (21.3-22.8 in) M/L — 58-61 cm (22.9-24.0 in) | ★★★★☆ 4/5 | ~€80 |
| Arx Plus | Road, Gravel, MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-61 cm (23.3-24.0 in) | ★★★★☆ 4/5 | ~€100 |
| Supra | Road, Gravel, MTB | One size — 54-61 cm (21.3-24.0 in) | Not rated | ~€60 |
Smith full Smith size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Convoy MIPS | MTB | XS — 48-52 cm (18.9-20.4 in) S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-62 cm (23.3-24.4 in) XL — 61-65 cm (24.1-25.5 in) | Not rated | ~€68 |
| Persist MIPS | Road | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-62 cm (23.3-24.4 in) XL — 61-65 cm (24.1-25.5 in) | Not rated | ~€109 |
| Session MIPS | MTB | S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-62 cm (23.3-24.4 in) | Not rated | ~€135 |
| Signal MIPS | Road | XS — 48-52 cm (18.9-20.4 in) S — 51-55 cm (20.1-21.6 in) M — 55-59 cm (21.7-23.2 in) L — 59-62 cm (23.3-24.4 in) XL — 61-65 cm (24.1-25.5 in) | ★★★☆☆ 3/5 | ~€68 |
Specialized full Specialized size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Align II | Urban, Road | S/M — 52-56 cm (20.5-22.0 in) M/L — 56-60 cm (22.1-23.6 in) XL — 59-62 cm (23.3-24.4 in) | ★★★★★ 5/5 | ~€55 |
| Ambush 2 | MTB | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★★ 5/5 | ~€99 |
| Ambush 3 | MTB | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★★ 5/5 | ~€199 |
| Camber | MTB | XS — 49-53 cm (19.3-20.8 in) S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) XL — 60-63 cm (23.7-24.8 in) | ★★★★☆ 4/5 | ~€59 |
| Chamonix 3 | Road, Urban | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★★ 5/5 | ~€69 |
| Dissident 2 | MTB | S — 55-57 cm (21.7-22.4 in) M — 57-59 cm (22.5-23.2 in) L — 58-60 cm (22.9-23.6 in) XL — 60-62 cm (23.7-24.4 in) | Not rated | ~€469 |
| Gambit | MTB | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | Not rated | ~€289 |
| Loma | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★☆ 4/5 | ~€109 |
| Mode | Urban | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★★ 5/5 | ~€75 |
| Propero 4 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★☆ 4/5 | ~€189 |
| S-Works Evade 3 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★☆ 4/5 | ~€289 |
| S-Works Evade 4 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★☆ 4/5 | ~€329 |
| S-Works Prevail 3 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★★ 5/5 | ~€289 |
| S-Works TT 5 | Road | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | Not rated | ~€349 |
| Search | Road, Gravel | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★☆ 4/5 | ~€149 |
| Tactic | MTB | S — 51-56 cm (20.1-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★★ 5/5 | ~€79 |
Sweet Protection full Sweet Protection size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Bushwhacker 2Vi Mips | MTB | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | ★★★★★ 5/5 | ~€249 |
| Commuter Mips | Urban | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | Not rated | ~€159 |
| Dissenter Mips | MTB | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | Not rated | ~€149 |
| Falconer 2Vi Mips | Road | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | ★★★★★ 5/5 | ~€249 |
| Falconer Aero 2Vi Mips | Road | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | ★★★★★ 5/5 | ~€299 |
| Fixer Carbon 2Vi Mips | MTB | XS — 53-54 cm (20.9-21.2 in) S — 55-56 cm (21.7-22.0 in) M — 57-58 cm (22.5-22.8 in) L — 59-60 cm (23.3-23.6 in) XL — 61-62 cm (24.1-24.4 in) | ★★★★★ 5/5 | ~€699 |
| Fixer Composite 2Vi Mips | MTB | XS — 53-54 cm (20.9-21.2 in) S — 55-56 cm (21.7-22.0 in) M — 57-58 cm (22.5-22.8 in) L — 59-60 cm (23.3-23.6 in) XL — 61-62 cm (24.1-24.4 in) | ★★★★★ 5/5 | ~€449 |
| Fluxer Mips | Road | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | ★★★★☆ 4/5 | ~€199 |
| Outrider Mips | Road, Urban | S — 52-55 cm (20.5-21.6 in) M — 54-58 cm (21.3-22.8 in) L — 58-61 cm (22.9-24.0 in) | Not rated | ~€149 |
| Primer Mips | MTB | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | ★★★★☆ 4/5 | ~€149 |
| Promuter Mips | Urban | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | ★★★★☆ 4/5 | ~€199 |
| Strayer 2Vi Mips | MTB | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-62 cm (23.3-24.4 in) | ★★★★★ 5/5 | ~€349 |
| Trailblazer Mips | MTB | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | ★★★★★ 5/5 | ~€199 |
| Tucker III 2Vi Mips | Road | S/M — 53-56 cm (20.9-22.0 in) M/L — 56-59 cm (22.1-23.2 in) L/XL — 59-61 cm (23.3-24.0 in) | Not rated | ~€349 |
Thousand full Thousand size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Chapter MIPS | Urban | S — 54-57 cm (21.3-22.4 in) M — 57-59 cm (22.5-23.2 in) L — 59-62 cm (23.3-24.4 in) | ★★★★☆ 4/5 | ~€156 |
Trek full Trek size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Ballista Mips | Road | S — 51-57 cm (20.1-22.4 in) M — 54-60 cm (21.3-23.6 in) L — 58-63 cm (22.9-24.8 in) | ★★★★☆ 4/5 | ~€249.99 |
| Blaze WaveCel | MTB | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) | ★★★★☆ 4/5 | ~€249.99 |
| Circuit WaveCel | Road | S — 51-57 cm (20.1-22.4 in) M — 54-60 cm (21.3-23.6 in) L — 58-63 cm (22.9-24.8 in) XL — 60-66 cm (23.7-25.9 in) | ★★★★☆ 4/5 | ~€157 |
| Quantum WaveCel | MTB | S — 52-56 cm (20.5-22.0 in) M — 55-59 cm (21.7-23.2 in) L — 58-62 cm (22.9-24.4 in) XL — 61-64 cm (24.1-25.1 in) | ★★★★☆ 4/5 | ~€109.99 |
| Rally WaveCel | MTB | S — 51-57 cm (20.1-22.4 in) M — 54-60 cm (21.3-23.6 in) L — 58-63 cm (22.9-24.8 in) XL — 60-66 cm (23.7-25.9 in) | ★★★★☆ 4/5 | Check price |
| Solstice Mips | Urban, Road | S/M — 51-58 cm (20.1-22.8 in) M/L — 55-61 cm (21.7-24.0 in) | ★★★★☆ 4/5 | Check price |
Uvex full Uvex size chart ›
| Model | Riding | Sizes | Safety (VT) | Price |
|---|---|---|---|---|
| Quatro | MTB | 52-57 cm — 52-57 cm (20.5-22.4 in) 56-61 cm — 56-61 cm (22.1-24.0 in) | Not rated | ~€120 |
| Rise | Road | 52-56 cm — 52-56 cm (20.5-22.0 in) 56-59 cm — 56-59 cm (22.1-23.2 in) | Not rated | ~€120 |
How to measure your head
- Use a flexible tailor's tape. No tape? Wrap a piece of string and measure it against a ruler.
- Wrap it around the widest part of your head: about 1-2 cm (half an inch) above the eyebrows and above the ears.
- Keep it level all the way round, snug but not tight.
- Measure twice. If the two numbers differ, use the bigger one.
One measurement is all this site needs. Head shape (round vs oval) also matters and we are working on it — for now, if a helmet fits your circumference but presses on the forehead or the sides, that is shape, not size.
Skip the tables: give us your measurement once and we will show your size in every brand.
Find my sizeWhere these numbers come from
102 of the 115 size charts here were read from the brand's own website and carry a “verified” mark on the helmet card; the other 13 came from retailer listings and are still being confirmed. Safety ratings are the Virginia Tech Helmet Lab's published STAR results. When we do not have something, we say so rather than guessing — a wrong size chart is worse than no size chart.
Related
- Helmets for big heads
- Helmets for small heads
- Safest helmets (Virginia Tech)
- ABUS size chart
- Bell size chart
- Bern size chart
- Endura size chart
- Fox size chart
- Giant size chart
- Giro size chart
- HJC size chart
- Kask size chart
- Lazer size chart
- MET size chart
- POC size chart
- SCOTT size chart
- Smith size chart
- Specialized size chart
- Sweet Protection size chart
- Thousand size chart
- Trek size chart
- Uvex size chart