InnerKing 912 Adult Bike Helmet with Rear Light and OTG Magnetic Goggles

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Product guide

InnerKing 912 Adult Bike Helmet with Rear Light and OTG Magnetic Goggles

The InnerKing 912 adult bike helmet combines an adjustable fit with detachable OTG-friendly magnetic goggles and a rechargeable rear light. The listed size is Medium, so check the stated head-circumference range before ordering.

At a glance

Detachable OTG-friendly magnetic goggles are presented as removable for different riding preferences.
The built-in rear LED is rechargeable and described as having four lighting modes.
The listing gives a Medium fit range of 55–59 cm and suggests sizing up to Large at head circumferences of 58 cm and above.

Price

$33.29Save 10%

Reference price: ~~$36.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Goggles and a rechargeable rear light are integrated into the helmet package, reducing the need to add those items separately.
The dial-adjustment description and supplied Medium head range help buyers assess fit before purchase.
Customer feedback reports comfortable, lightweight wear and appreciates the adjustability and rear light.

Technical specifications

13 specifications

Identity and fit
Brand	Innerking
Model	912
Age range	Adult
Size	Medium
Listed fit range	M-21.65in–23.23in (55–59cm)
Color	Grey

Construction and features
Outer material	Polycarbonate (PC)
Inner material	Expanded Polystyrene
Special features	17 air vents, Adjustable Strap, Lightweight, Magnetic Goggles, Rear Light
Listed standards claim	Meets ASTM, CPSC, CE, and EN1078 safety standards.
Rear light modes	4 lighting modes

Dimensions and installation
Dimensions listed	10.63 x 7.87 x 6.69 inches
Weight listed	0.33 kg

What to know before buying

Listing details to confirm

The listing says the helmet meets ASTM, CPSC, CE and EN1078 standards, but certification evidence is not provided here. Fit is listed as Medium at 55–59 cm, while the sizing guidance recommends Large from 58 cm upward, so measure carefully and consider the overlap. The rear light is described as having four modes but no runtime is stated. Use only a standard 5V/1A adapter for charging, since the listing warns against fast chargers.

What’s in the box

Included

Cycling helmet (1)
User manual ×1
Packaging bag (1)
Goggle (1)

Who is it for?

A good fit for

Adult cyclists looking for a helmet with included detachable goggles and a built-in rear light.
Riders whose measured head circumference fits the stated Medium range and who value an adjustable dial fit.

Less suited to

Buyers who need a confirmed rear-light runtime or independently documented certification details before purchasing.
Riders whose head circumference falls outside the listing's stated size ranges.

InnerKing 912 Adult Bike Helmet with Rear Light and OTG Magnetic Goggles · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 612 ratings

5 stars83%83%
4 stars9%9%
3 stars4%4%
2 stars3%3%
1 star1%1%

Customer feedback describes the helmet as comfortable, lightweight and well-fitting without feeling bulky, and appreciates its adjustability, rear light and sun protection. Those reports align with the listed adjustable fit, rear light and detachable goggles, but are customer perceptions rather than confirmation of safety performance or fit for every head shape. Aggregate ratings are mostly five-star, while lower-star ratings are also present, so experiences are not uniform.

Positive themes

Customers report comfort, light weight and a good fit.
Customers appreciate adjustability, the bright rechargeable rear light and sun protection.

Frequently asked questions

What comes with this helmet?

The listed components are one cycling helmet, one instruction manual, one packaging bag and one goggle.

What head size does the Medium fit?

The listing gives Medium as 55–59 cm. It also recommends Large for head circumferences of 58 cm and above, so the stated guidance overlaps at 58–59 cm.

Can the goggles be removed?

Yes. The listing describes the OTG-friendly magnetic goggles as detachable.

How should the rear light be charged?

The listing says to use a standard 5V/1A adapter and not a fast charger.