Mekarium in this chrome-and-black colourway is one of four current decors this listing cannot show a manufacturer photograph for -- Shark's own product pages and press images had not gone live for this particular colour code at the time this listing was built. It is created here from the same price-list and Range Book data as every other decor: chrome-effect graphic elements over a black-and-carbon base, per Shark's own colour description, sold at the same specification as the rest of the range.

The certification this decor carries

Missing photograph aside, the paperwork on this helmet is not in doubt: UNECE R 22-06. That standard tests more impact points than 22.05 did, each at several speeds, and adds a rotational-impact score the old rule skipped entirely. Every Spartan GT Pro Carbon shares it, imaged or not.

The shell material, precisely stated

Shark classifies this shell under its "Fibre" product family -- a fiberglass-carbon composite, not a solid carbon-aramid lay-up -- across two shell moulds around a stepped-density foam liner. That construction stays the same across every decor in this range regardless of the graphic on top, this one included.

What the neck carries, not just the scale

Shark's stated weight is 1,465 g for the smaller of two shells; the larger sizes use a second mould and run a little heavier. That number matters over a ride, not on a shelf -- a lighter shell in this class means less accumulated fatigue across a long day, gradually rather than in the first five minutes.

Ventilation, measured against what actually closes

Three intakes at the front and two rear extractors move air through Shark's double-Venturi layout, designed to work below motorway speed rather than only above it. An independent Visordown test confirms both chin-bar vents and the rear exhaust ports genuinely close, so this shell runs open for summer heat and sealed for winter cold -- decent airflow, not best-in-class, a fair note kept here.

Visor hardware: central lock, factory Pinlock

The VZ300 visor fitted to this decor is the platform shared with the Spartan RS and Spartan RS Carbon, not a cut-price alternative. Optical class 1 glazing tapers from 2.8 mm to 2.2 mm, secured by a central grip with central locking rather than a side catch, and comes with a clear Pinlock 120 insert fitted from the factory. Iridium blue, pink and red are approved for daytime road use; smoke, silver and rainbow finishes are racing-only.

Sun visor and daily details

An internal UV380 anti-fog sun visor operates from a single external slider, usable one-handed with gloves on. The mount is tool-free to remove for cleaning or a tint change, the shell is cut with a glasses groove, and Shark lists this helmet as compatible with both its own Sharktooth intercom and SENA units.

What is protecting the rider, stated without embellishment

An EPS liner graded through several firmness stages absorbs impact energy under the shell, closed at the chin with a double-D ring rather than a quick-release buckle. Pulling the cheek pads free -- without moving an injured rider's neck -- is what Shark's own Emergency Release hardware is built for, the same function most riders call EQRS. MIPS is absent from every piece of Shark's own documentation for this helmet, and none is claimed here.

Comfort inside the shell

ALVEOTECH antimicrobial fabric lines the interior, cut into 3D morphological cheek pads per Shark's own collection description. Independent testing confirms the whole interior -- pads, neck roll, skull cap -- is removable for washing. Six sizes, XS to XXL, are split across the two shell moulds used throughout the range.

On the missing photograph, plainly

This colourway -- chrome-effect Mekarium graphics over a black-and-carbon base, per Shark's own colour listing -- is created and priced from the same manufacturer data as every other decor here, but without a supplied product photograph at build time. It ships with zero product media rather than a placeholder or a borrowed image from a different colourway; the description above and the specification below are accurate regardless, and the colour name rests on Shark's own wording, unverified against a photo because none exists yet.

Where this decor sits on the Spartan ladder

Shark's own price data shows four real steps: Spartan RS Fibre at the entry level, Spartan RS Carbon above it, the non-carbon Spartan GT Pro adding Sport-GT comfort without carbon, and Spartan GT Pro Carbon on top. This graphic decor sits in the middle of that top step, above the plain Skin pair and below the Replica tier -- the same middle position most of this line's graphic decors occupy.

Wind noise, without guesswork

No trustworthy independently measured decibel figure exists for this helmet, so none is stated here. BikeSocial's road test of the 22-06 generation credits a tighter, elasticated neck roll built specifically to cut wind noise, at the cost of a marginally harder helmet to put on; Visordown separately calls the wind noise in ordinary riding kept to a relative minimum. Both are editorial observations, not lab figures.

Spare parts

Shark bundles replacement visors for the RS and GT Pro ranges into one listing, and the Range Book confirms this VZ300 part fits three Spartan builds, not just one. A damaged visor is a spare part here, not a reason to replace the shell.

Stated without spin: what is missing

No product photograph exists for this colourway at build time, and this listing does not borrow one from a different code -- it ships with zero media rather than a misleading stand-in. No MIPS is fitted. An older Shark helmet, tested by SHARP in August 2021 and rated 4 stars, carries no "Pro" in its own listed name -- that score is not carried over here.

Specification

• Model — Spartan GT Pro Carbon Mekarium (Chrome Black)
• Shell — Two-mould fiberglass-carbon shell, density-stepped EPS
• Weight — 1,465 g for the smaller shell (Shark)
• Homologation — ECE 22.06, UNECE R 22-06, NCO
• Closure — Double-D ring
• Ventilation — 3 intakes, 2 extractors, double-Venturi, closable vents
• Visor — Central-lock optical class 1 visor, 2.8-2.2 mm, Pinlock 120 included
• Sun visor — Drop-down UV380 anti-fog sun visor
• Interior — ALVEOTECH removable, washable lining, 3D cheek pads
• Warranty — 5 years
• Country of origin — Thailand
• Sizes — 6 sizes XS-XXL