Choosing a P2R A20 starts with understanding its four configurations. Whether you are comparing the road versions or looking for an AT visor, this guide explains the differences so you can narrow down your choice.
The key questions are straightforward: do you want MIPS, and do you prefer the MagLens magnetic lens, an AT visor, or neither?
An independent testing highlight: A20 MIPS
The tested P2R A20 MIPS earned a 5-star rating and a STAR score of 8.14 in Virginia Tech’s bicycle helmet testing. For riders researching the A20, this provides an independent reference alongside the helmet’s features and fit.
This result applies to the tested A20 MIPS model. It should not be assumed to cover every A20 configuration, including MagLens and AT versions.
View Virginia Tech’s bicycle helmet ratings and look for P2R A20 MIPS.
Four configurations at a glance
- A20 MIPS: Road configuration with MIPS.
- A20 MIPS + MagLens: Road configuration with MIPS and a configuration-specific magnetic lens.
- A20 AT: All-terrain configuration with an AT visor, without MIPS.
- A20 MIPS + AT: All-terrain configuration with MIPS and an AT visor.
AT does not automatically mean MIPS, and the MagLens magnetic lens does not fit every A20.
A20 MIPS: The road configuration
Start with the A20 MIPS if you want the road configuration without the MagLens system or AT visor.
For riders interested in independent helmet testing, this is also the model named in the Virginia Tech result cited above. Check the exact model and sizing information rather than assuming the same result applies across the range.
A20 MIPS + MagLens: With a dedicated magnetic lens
The MIPS + MagLens configuration combines the road version with a dedicated magnetic lens.
If you want the MagLens feature, choose the corresponding configuration from the outset. The magnetic lens works only with the A20 MagLens model and is not compatible with the standard MIPS or AT versions.
Already own an A20? Confirm your exact configuration before ordering a replacement lens. The A20 name alone does not establish compatibility.
A20 AT and MIPS + AT: With an AT visor
Both AT configurations include an AT visor. The difference is whether MIPS is included:
- A20 AT is the all-terrain configuration without MIPS.
- A20 MIPS + AT is the all-terrain configuration with MIPS.
The AT visor and MagLens magnetic lens are different features, not interchangeable accessories.
Shared A20 features
The A20 product specifications list In-Mold construction with a polycarbonate shell and EPS liner, 23 vents, removable washable padding, and an included rechargeable magnetic rear light.
These features describe the A20 platform. Before ordering, review the selected configuration to confirm which lens or visor is included.
Check fit before making your choice
Configuration is only part of choosing a helmet. Check the published sizing guidance and follow the helmet’s fitting instructions before use.
- Confirm the configuration name.
- Check your size against the product’s sizing guidance.
- Confirm the lens or visor included with that option.
- Review the selected variant rather than relying only on the main product image.
The A20 is designed for bicycle use, not motorcycle use.
Frequently asked questions
Does every A20 include MIPS?
No. The A20 AT configuration without MIPS is a separate option. Check the selected configuration name and specifications.
Does the Virginia Tech rating apply to every A20?
The cited 5-star rating and STAR score of 8.14 apply to the tested A20 MIPS model. They should not automatically be applied to other configurations.
Can I add a MagLens magnetic lens to a standard A20 MIPS?
No. The magnetic lens is compatible only with the A20 MagLens model, not the standard MIPS or AT versions.
Is the AT visor the same as the MagLens lens?
No. They are different features offered on different configurations.
Which configuration should I choose?
Start by deciding whether you want the road or all-terrain configuration, then compare MIPS availability and the corresponding lens or visor. Finally, confirm sizing and fit.
Explore the P2R A20
Compare the available A20 configurations and review the sizing information on the product page to find the option that matches your preferences.