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Throttle Closet
Full specification As published
Shell MaterialAdvanced polymer composite
Weight1500 g (size M)
VisorAnti-scratch with Pinlock 70 insert
Ventilation4 intake / 2 exhaust vents
CertificationDOT / ECE 22.05
Mass1500 g as published
Covershead, face
Bench rank102 of 200 on this site
Helmet · Rank 102 of 200

AGV K1 S

by AGV

A DOT/ECE 22.05 certified full-face helmet with race-inspired styling and strong ventilation, built for sport and sport-touring riders at a mid-range price.

4.3 Rider rating 4.3 out of 5 Bench score 56/100
  • Aerodynamic race-inspired shell
  • Strong intake/exhaust ventilation
  • Pinlock-ready visor included
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Specs taken from the manufacturer No paid placement Bought at retail
Verdict

The AGV K1 S delivers race-inspired styling, solid aerodynamics and dependable ventilation at a mid-range price point, making it a strong choice for sport and sport-touring riders who want performance-helmet features without flagship pricing. Wind noise at speed and a visor mechanism that trails AGV's higher-end models are the clearest reservations.

The AGV K1 S is a full-face helmet built from an advanced polymer composite shell, weighing around 1500 grams for a size medium and carrying DOT/ECE 22.05 certification. Its four intake and two exhaust vents form a genuine ventilation system rather than a token gesture, and the visor comes with a Pinlock 70 anti-fog insert as standard, which is a useful inclusion at this price. The shell's aerodynamic shape is a clear inheritance from AGV's racing background, and it comes in multiple sizes so riders can get closer to a precise fit rather than relying on padding alone to take up the slack. and the shell's aerodynamic profile carries over race-derived design work.

On the road, the ventilation performs well in warm weather, pulling air through the vents to keep the rider cooler in traffic or on longer stints. Wind noise does become noticeable above 70mph, so earplugs are worth carrying on faster roads. Cheek pads run a little snug for wider face shapes, which is worth checking before committing to a size, and the visor mechanism, while functional, feels a step down in refinement compared with AGV's higher-end models. The removable, washable liner and double D-ring chin strap round out a helmet that is straightforward to live with day to day. The removable liner also wicks moisture reasonably well across warmer, longer rides.

This helmet suits sport and sport-touring riders who want race-derived styling and dependable ventilation without paying for AGV's flagship lineup. Colour and graphic choices are more limited in some regions, and the visor swap mechanism is less slick than what riders will find on premium AGV helmets. For riders with wider face shapes, the snug cheek pads are worth trying before buying. Set against those trade-offs, the K1 S remains a sound mid-range option for anyone wanting genuine performance-helmet features at an accessible level. Riders wanting the quietest ride or the most refined shield mechanism should look to AGV's higher-tier helmets instead, since some of the savings here show up in those details rather than core safety.

What works
  • Strong value for a full-face performance helmet
  • Ventilation system copes well in warm weather riding
  • Pinlock 70 insert included for anti-fog protection
  • Multiple shell sizes help dial in the fit
  • DOT/ECE 22.05 certification for peace of mind
What doesn't
  • Cheek pads run a bit snug for wider faces
  • Wind noise becomes noticeable above 70 mph
  • Visor mechanism feels less refined than higher-end AGV helmets
  • Colour and graphic options are limited in some regions
Bench scorecard
Protection70Weather26Airflow63Comfort59Value64

Derived from this product's own specification, key features and owner-reported pros and cons, then adjusted by its rider rating. Same rules for every piece.

Key features
  • Aerodynamic full-face polymer composite shell
  • Pinlock 70 anti-fog insert included
  • Four intake and two exhaust vents
  • Removable, washable interior liner
  • Double D-ring chin strap closure
  • Available in multiple shell sizes
Where it sits in helmet
This piece 56 Category median 59 Category best 67

Bench rank 32 of 40 in helmet. The median piece in this category scores 59; the best scores 67.

What it covers
headfaceneckchestbackshoulderselbowshandswristshipskneesshinsfeetankles

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Who it fits
  • Riders who want certified protection first and will live with the weight.
  • Hot-weather commuting and summer touring — airflow is this piece's strong suit.
Stack it against
Shoei X-FourteenBench 62 · 4.8 ★
AGV Pista GP RRBench 57 · 4.8 ★
Arai Corsair XBench 62 · 4.7 ★
Shoei RF-1400Bench 61 · 4.7 ★
Shoei GT-Air IIBench 60 · 4.7 ★