P2R A20 Bike Helmet with MIPS, Magnetic Photochromic Lens and Rear LED — Adult Commuter Fit

The P2R A20 is an adult bicycle helmet that combines MIPS rotational impact protection, a photochromic magnetic lens, and an integrated rear LED for safer, more comfortable rides.

The P2R A20 blends modern safety tech with commuter-friendly features to serve everyday cyclists and road riders. Lightweight in-mold construction and an EPS liner provide core impact management while ventilation channels help regulate temperature on long spins. The helmet includes an adaptive photochromic lens that snaps on magnetically for quick eye protection in variable light, plus a rear LED to boost visibility when riding at dawn, dusk, or night.

How does the A20 protect against impacts and rotational forces?

The A20 incorporates a dedicated rotational-energy management layer to address angled hits that can occur in falls and collisions. Its CPSC-compliant shell works with the interior liner to meet U.S. bicycle helmet safety standards while offering an added layer intended to manage rotational motion.

• MIPS-style rotational protection layer integrated into the helmet
• EPS foam liner plus in-mold polycarbonate shell for impact absorption
• Meets U.S. CPSC 16 CFR Part 1203 bicycle helmet requirements

What are the benefits and use cases for the magnetic photochromic lens?

The included lens changes tint with light levels, helping protect eyes from glare on bright days and providing clearer vision in low light without swapping lenses. Its magnetic attachment system allows fast installation and removal so you can adapt to changing conditions on the fly.

• Photochromic tint that darkens in sunlight and lightens in shade
• Magnetic mount for tool-free on/off in seconds
• Covers eyes from wind and debris for commuting and road riding

Will the helmet stay comfortable and secure during long rides?

The A20 balances coverage and ventilation to keep riders comfortable over extended use. Adjustable straps, a rear dial-fit system, and removable interior pads let you dial in stability and comfort for different head shapes and helmet positions.

• Rear dial adjustment for a precise fit
• Multiple removable comfort pads to customize padding and sweat management
• Strategic vents that promote airflow without sacrificing protection

How does the integrated rear LED help with visibility?

A built-in rear light increases visibility to motorists and other road users without adding accessories. The LED is designed for commuter scenarios and can be used during low-light conditions to enhance your presence on the road.

• Rear-mounted LED for improved visibility in low light
• Simple activation for steady or flashing modes
• Seamless design that keeps the helmet streamlined and functional

Who is this helmet for? The P2R A20 is aimed at adults who want a versatile helmet suitable for daily commuting, urban cycling, and recreational road rides. It fits riders who value quick adaptability—like a magnetic sun lens and adjustable fit—paired with modern safety features such as a rotational protection layer and CPSC compliance. Before purchasing, measure head circumference and choose the size that matches the helmet’s sizing guide for the best fit and protection.