Nexx X.WST3 Zero Pro Carbon Street Helmet
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Size chart Nexx X.WST3
| Size | Head circumference (cm) | Head circumference (inch) |
|---|---|---|
| XXS | 51–52 cm | 20.1–20.5 in |
| XS | 53–54 cm | 20.9–21.3 in |
| S | 55–56 cm | 21.7–22.0 in |
| M | 57–58 cm | 22.4–22.8 in |
| L | 59–60 cm | 23.2–23.6 in |
| XL | 61–62 cm | 24.0–24.4 in |
| XXL | 63–64 cm | 24.8–25.2 in |
| XXXL | 65–66 cm | 25.6–26.0 in |

How to measure your helmet size correctly: Measure your head circumference with a flexible tape around the widest part of the head, about 1–2 cm above the eyebrows and over the largest part of the back of the head. Measure 2–3 times and compare the value in centimetres with the chart.
Important note on fit
The right helmet should fit firmly without uncomfortable pressure points. Between two sizes, most riders choose the larger one. A new helmet may feel a little tighter at first as the lining adapts.
- Worldwide shipping
- Genuine parts & verified quality
- Personal email support
- 14-day returns — in stock ships within 24h
Shipping & Returns
We ship with DHL and FedEx — express on request. If an item is in stock, express delivery can often go out within 1 business day. Standard delivery takes about 2–5 business days domestically and usually around a week worldwide. Please check the available shipping options and delivery times in your cart, as we offer several carriers depending on the country.
Returns must be registered in advance by email and are possible in line with our cancellation policy (14-day return request + 14-day return window after approval). Please note: unregistered returns are not accepted. You'll find all details on conditions, exceptions and refunds in our cancellation policy.
Payment & Security
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Welcome to the Wild Street. The Nexx X.WST3 is a streetfighter full-face with one of the most distinctive designs in the category — sporty character, high-tech Nexx features, and a safe, versatile helmet for everyday riding. Built on the featherweight X-PRO 3K Carbon shell, here in a stealth exposed-carbon finish.
Key Features
- ECE 22-06 (UN), DOT (FMVSS 218), CCC (GB811:2022), NBR7471:2015
- X-PRO Carbon (aerospace-grade 3K carbon) shell — a strong, light structure in three shell sizes (XXS–S | M–L | XL–XXXL)
- Aerodynamic rear spoiler — improves airflow, cuts drag and adds high-speed stability; it's a performance part, not just a styling cue
- Visor Recoil System — spring-loaded base side-plates automatically pull the visor against the twin-lip beads for a perfect, airtight seal; Pinlock 120 XLT MaxVision fitted, clear + second Smoke 80% visor included, plus a visor bag
- Internal sun visor, 18% larger — drops to just above the bridge of the nose
- Anti-Vibration EPS — a rubber layer between inner and outer EPS lets the inner EPS micro-move, cutting high-speed vibration for a smoother, more stable, safer ride
- X-Foam chin bumper — ultralight EPP foam in the chin to absorb impact energy
- Ventilation — 6 intakes / 2 exhausts, cheek-pad ventilation, the patent-pending Mid Airflow Chamber and the Air Cumbs cooling chamber for standout interior airflow
- F.R.S® Fast Release System — both cheek pads release tool-free for cleaning and safer emergency removal
- Double-D ring + X-LOCK magnetic catch; removable chin-strap covers; soft X-Mart Dry liner (removable, washable); night-vision reflectors; removable breath guard
- X-COM3 comms ready (Bluetooth 5.2); side action-camera mount
Contemporary Mastery
The X.WST3 shell is made from ultralight, high-impact X-PRO carbon fibre — aerospace know-how combined with 3K carbon for a composite that is lighter, stronger and more comfortable. Available in three shell sizes for a true fit.
Anti-Vibration EPS
The innovative Anti-Vibration EPS system places a unique rubber trim between the inner and outer EPS, allowing micro-movements that reduce the helmet vibration caused by high-speed air turbulence. The result is more safety, more head stability and a smoother, more comfortable ride.
Fresh Inside, Striking Outside
The interior blends faux leather, large ventilation-mesh inserts, dark reflective inserts and detailed stitching for a striking look. The soft X-Mart Dry fabric keeps the interior cool and dry. The Air Cumbs crown pad is stitched with a special alveolar mesh that forms a fresh-air chamber between the EPS and the padding.
F.R.S® Fast Release System
The patent-pending F.R.S® liner lets both cheek pads be removed at once, quickly and tool-free: lift the rubberised arms that lock the buttons on each side, slide the red buttons back, and both pads come free. Perfect for cleaning — and, crucially, it lets first responders remove the helmet from an injured rider easily and with minimal movement.
Sound & Camera
The new X-COM3 series integrates fully — earphones, battery, cable slots, microphone and Bluetooth 5.2 — in Standard and PRO (2.0 Mesh, Harman Kardon sound) versions. A side mount holds your action camera to capture life on the road.
Size Guide
The X.WST3 runs from XXS to XXXL across three outer shell sizes (XXS–S | M–L | XL–XXXL). Measure your head circumference around the widest part, about 1–2 cm above the eyebrows, and compare it with the size chart on this page. Between two sizes, most riders take the larger one.
In the Box
- 1× Nexx X.WST3 helmet (X-PRO Carbon, three shell sizes)
- 1× Pinlock 120 XLT MaxVision anti-fog lens (fitted)
- 1× clear visor + 1× second (Smoke 80%) visor + visor bag
- Rear spoiler; side action-camera mount; wind deflector / breath guard
Finish: Zero Pro carbon matt. Photochromic visor available separately.
| Helmet type | Streetfighter full-face (road) |
|---|---|
| Certification | ECE 22-06 (UN) · DOT (FMVSS 218) · CCC (GB811:2022) · NBR7471:2015 |
| Shell | X-PRO Carbon (aerospace-grade 3K carbon) — 3 shell sizes (XXS–S | M–L | XL–XXXL) |
| Weight | approx. 1,600 g ± 50 g (varies by size) |
| Retention | Double-D ring + X-LOCK magnetic catch |
| Visor | Visor Recoil System; clear + second Smoke 80% visor incl.; Pinlock 120 XLT MaxVision fitted; internal sun visor (+18%); photochromic optional |
| Protection | Anti-Vibration EPS (rubber-decoupled inner EPS); Mid Airflow Chamber; X-Foam chin bumper |
| Aero | Aerodynamic rear spoiler |
| Ventilation | 6 intakes / 2 exhausts; cheek-pad ventilation; Air Cumbs; X-Mart Dry liner |
| Comms & camera | X-COM3 ready (BT 5.2); side action-camera mount; F.R.S cheek pads; night reflectors |
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1x helmet (X-PRO Carbon, three shell sizes)
-
1x Pinlock 120 XLT MaxVision anti-fog lens (fitted)
-
1x clear visor + 1x second (Smoke 80%) visor + visor bag
-
Rear spoiler; side action-camera mount; wind deflector / breath guard
Fitment data coming soon.
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Nexx Pinlock 70 MaxVision
Included free
helmet only
Your helmet is always included · one Pinlock comes free · pick your size in the buy box above
// Nexx
Nexx X.WST3 Zero Pro Carbon Street Helmet

Tech specs
- Helmet type
- Streetfighter full-face (road)
- Certification
- ECE 22-06 (UN) · DOT (FMVSS 218) · CCC (GB811:2022) · NBR7471:2015
- Shell
- X-PRO Carbon (aerospace-grade 3K carbon) — 3 shell sizes (XXS–S | M–L | XL–XXXL)
- Weight
- approx. 1,600 g ± 50 g (varies by size)
- Retention
- Double-D ring + X-LOCK magnetic catch
- Visor
- Visor Recoil System; clear + second Smoke 80% visor incl.; Pinlock 120 XLT MaxVision fitted; internal sun visor (+18%); photochromic optional
- Protection
- Anti-Vibration EPS (rubber-decoupled inner EPS); Mid Airflow Chamber; X-Foam chin bumper
- Aero
- Aerodynamic rear spoiler
- Ventilation
- 6 intakes / 2 exhausts; cheek-pad ventilation; Air Cumbs; X-Mart Dry liner
- Comms & camera
- X-COM3 ready (BT 5.2); side action-camera mount; F.R.S cheek pads; night reflectors
// Support
Frequently asked questions
Shipping & delivery
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