Is the S-R7 worth the extra over the K1 S?

Yes if you ride sport and want less weight and a wider view. The S-R7 is quoted at 1,390 g against 1,500 g for the K1 S, and it gives 220° peripheral vision against 190°. If you mainly commute, the K1 S does the job for far less.

Which is better for track days?

The S-R7. It has a carbon composite shell, a seven-piece EPS liner and 10 vents. The K1 S is ECE 22.06 approved and has a Double D strap, but it is a thermoplastic road helmet. Check your track's rules before you book.

Which is better for commuting?

The K1 S. It costs $195.60 at Amazon as of November 4, 2026, has a micro-opening visor step for slow traffic and a washable liner. The S-R7 costs more and its extra vents and wide view matter less in town.

Does either come with a Pinlock lens?

The S-R7 includes a Pinlock 120 MaxVision lens. The K1 S takes a Pinlock 70 MaxVision insert, which is sold separately.

Which has the wider field of view?

The S-R7, at 220° peripheral and 57° vertical. The K1 S gives 190° horizontal.

Can I fit a communication system to both?

Yes. The S-R7 is ready for the Alpinestars A-Connect system, sold separately. The K1 S is ready for a generic communication system.

Alpinestars S-R7 Full Face Motorcycle Helmet vs AGV K1 S Full Face Motorcycle Helmet

Buy the AGV K1 S if you want a solid everyday road helmet at a low price. Buy the Alpinestars S-R7 if you want a light carbon composite shell, a wider field of view and better ventilation for sport riding and track days. On November 4, 2026 the S-R7's best new price is $673.02 at alpinestars.com and the K1 S's is $195.60 at Amazon. The S-R7 costs about $477 more, and it has been as low as $626.65 since November 2, 2026.

Today the AGV K1 S Full Face Motorcycle Helmet costs $477.42 less at its best price.

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