K3 Carbon Fiber Helmet - Bluetooth Headset

A helmet only protects you properly when it fits. Take two minutes to measure before you order.

How to measure your head

Use a soft measuring tape. No tape? Use a piece of string, then measure the string with a ruler.
Wrap it around the widest part of your head, about one inch above your eyebrows and just above your ears.
Keep the tape level all the way round and comfortably snug.
Measure two or three times and use the largest reading.

Match your measurement to the chart

Sizing differs between helmet models, so always use the size chart shown on the product page of the helmet you want. Don't assume your size in one helmet is your size in another.

How a helmet should feel

Snug all the way around, with the cheek pads touching your cheeks.
No pressure points or hot spots on your forehead.
With the strap fastened, the helmet should not roll forward off your head or twist freely side to side.
New helmets loosen slightly as the padding beds in, so a firm fit is normal.

Between two sizes?

Email contact@ridercape.com with your measurement and the helmet you're looking at, and we'll help you choose.

Gloves, jackets and boots

For riding gear, use the size information on each product page and compare it with your own measurements.

If the fit isn't right when it arrives, see our Refund Policy.

Built for your next ride

Description

The K3 is a carbon fiber full face helmet with a Bluetooth V5.0 headset integrated into the shell. At approximately 1550 g and DOT/ECE certified, it is aimed at riders who want a light lid with music, automatic call answering and FM radio on board. It comes in matte and gloss blacks, white, reds, green and light blue with a range of visor options, sizes M to XXL.

Key features

Carbon fiber shell: durable with a lightweight feel.
Integrated Bluetooth V5.0: pairs with your phone for music, automatic call answering and FM radio.
Double lens design: PC lens with three-dimensional optical correction, highly impact-resistant and distortion-free.
Quick release fastener: easy to do up and undo, even with gloves on.
Removable inner lining: breathable technical fabric that comes out for washing.
Mouth vent and rear outlet: the front vent helps reduce fogging and works with the rear air outlet to shed heat.

Specifications

Shell: carbon fiber
Weight: approximately 1550 g
Certification: DOT/ECE certified
Bluetooth: V5.0
Battery: lithium, 1200 mAh
Standby time: up to 180 hours
Call duration: up to 30 hours
Playback: up to 72 hours (25 hours of music at maximum volume)
Charging time: 2.5 hours or less
Transmission distance: 20 m (unobstructed)
Frequency response: 180~2000KHz
SNR: 80 dB

Sizing

Available in M, L, XL and XXL. See the size chart below.

K3 Carbon Fiber Helmet - Bluetooth Headset

Find your fit.

A great ride starts with the right fit. Measure your head before you pick a size.

Wrap a soft measuring tape around your head, just above your eyebrows and ears.

Keep the tape level and comfortably snug, then read your head circumference.

Match your measurement to the size chart for this helmet in the description above.

Between two sizes? A helmet should feel snug without pressure points. Not sure? Email contact@ridercape.com before you order.

Frequently asked questions

How do I choose the right helmet size?

Measure your head circumference just above the eyebrows and ears, then compare it with the size chart in the product description. Sizing can differ between helmet models, so check the chart for this one.

Is this helmet safety certified?

Where a helmet carries a certification such as DOT or ECE, it is listed in the product description. If you can't find it there, email us before ordering and we'll confirm.

How much is shipping?

Shipping is calculated at checkout and shown before you pay, so there are no surprises.

Which options come with my order?

You receive exactly the variant you select above — colour, size and any other option shown. Double-check your selection before adding to cart.

How do I contact support?

Email contact@ridercape.com with your question or order number and we'll get back to you.