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Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black
Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White
Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey
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Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime
Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime Lightning Lime
Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black
Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black Stealth Black
Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White
Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White Phantom White
Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey
Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey Maverick Grey
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Lumos Ultra Fly

The Lumos Ultra Fly is the perfect balance between smart lighting and performance, coming in at under 250g for when you’re going on your weekend rides and only 280g with a Firefly attached for when you need to be seen on the road.

With all new upgrades, Ultra Fly is a road bike helmet jam-packed with new technology to keep you safe on the road whether you’re on your commute, or on your recreational ride, day or night:

  • Improved vents: Well-ventilated design for optimal airflow while cycling.
  • FlexiFit Retention System: Adjust both vertically and horizontally for best fit.
  • OptiGrip: Custom-designed sunglass port that securely holds your sunglass in place.
  • Firefly Port: Magnetically attach a Firefly bike light only when you need the added visibility on the road.
$54.98$109.95
50% OFF
Color: Lightning Lime
Model (Size: M-L):
Select A Bundle:

Lumos Ultra Fly Fit Guide

Measuring your head size
1
Find a measuring tool Use a soft tape, rope or even your charging cable. Place it against a ruler to measure.
2
Measure your head Wrap it around your head, position it mid-forehead and above the eyebrows and ears.
3
Find your helmet size Identify if it’s a good fit. Lumos Ultra Fly fits most head shapes with the adjustable dial fit system.

We strongly advise that you measure your head size before purchasing to ensure the helmet fits perfectly around your head.

Determining Your Head Size

Sizing Small Medium-Large Extra Large
Inches 20in. - 21.7in. 21.3in. - 24.0in. 24in. - 25.6in.
Centimetres 51cm - 55cm 54cm - 61cm 61cm - 65cm
Weight (MIPS) 370g 409g 450g
Weight (Standard) - 370g -

We strongly advise that you measure your head size before purchasing to ensure the helmet fits perfectly around your head.

Add-on (Optional):
Quantity:
DETAILS
  • Size
    • Length: 10.24" (26cm)
    • Width: 8.62" (21.9cm)
    • Height: 5.51" (14cm)
  • Weight
    • Standard: 8.64 oz. (245g)
    • Mips: 9.70 oz. (275g)
  • Fits
    • M/L: 21.6-24" (55-61cm)
  • Comfort and Safety
    • Mips® Evolve Core (for Mips model)
    • FlexiFit fit system
    • OptiGrip sunglasses port
  • Certifications
    • US: Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older
    • EU: CE EN1078:2012 + A1:2012
    • F1447
SHIPPING AND RETURNS
30-day return policy and limited 1-year warranty.
EU DECLARATION OF CONFORMITY
View EU Declaration of Conformity for Lumos Ultra Fly.
STAY WARM, STAY VISIBLE
Winter weather won’t slow you down

The Lumos Winter Liner is designed for all Lumos helmet models, upgrade your helmet into a winter-ready solution. With seamless integration, it perfectly conforms to your helmet's shape, ensuring visibility while protecting you from the harsh cold. Enjoy a cozy riding experience even below 0°C.

add-on winter bundle:
Ultra Fly (Mips) Winter Kit
  • 1 x Lumos Ultra Fly (MIPS)
  • 1 x Lumos Winter Liner
$134.90
Ultra Fly (Mips) Winter Kit
Ultra Fly (Mips) Winter Kit

Ultra Fly (MIPS) Winter Kit

Lumos Ultra Fly (Color):
Model (Size: M-L):
Ultra Fly Winter Kit
  • 1 x Lumos Ultra Fly
  • 1 x Lumos Winter Liner
$104.90
Ultra Fly Winter Kit
Ultra Fly Winter Kit

Ultra Fly Winter Kit

Lumos Ultra Fly (Color):
Model (Size: M-L):
STAY WARM, STAY VISIBLE
Winter weather won’t slow you down

The Lumos Winter Liner is designed for all Lumos helmet models, upgrade your helmet into a winter-ready solution. With seamless integration, it perfectly conforms to your helmet's shape, ensuring visibility while protecting you from the harsh cold. Enjoy a cozy riding experience even below 0°C.

Ultra Fly (Mips) Winter Kit
  • 1 x Lumos Ultra Fly (MIPS)
  • 1 x Lumos Winter Liner
$134.90
Ultra Fly (Mips) Winter Kit
Ultra Fly (Mips) Winter Kit

Ultra Fly (MIPS) Winter Kit

Lumos Ultra Fly (Color):
Model (Size: M-L):
Ultra Fly Winter Kit
  • 1 x Lumos Ultra Fly
  • 1 x Lumos Winter Liner
$104.90
Ultra Fly Winter Kit
Ultra Fly Winter Kit

Ultra Fly Winter Kit

Lumos Ultra Fly (Color):
Model (Size: M-L):
Ultra Fly
An Ultra Lightweight Smart Helmet for All Your Rides.
from $39.98
Buy Now
Lumos Ultra Fly
$54.98 USD $109.95 USD
Lightning Lime
Mips
Color: Lightning Lime
Model (Size: M-L):
Lumos Ultra Fly
$54.98 USD $109.95 USD
Lumos Ultra Fly
$54.98 USD $109.95 USD
Color: Lightning Lime
Model (Size: M-L):
Quantity:
The perfect helmet on the road, however you’re riding
Smartness and simplicity in perfect unison
great modern design
lights on when you need it
245g super lightweight
Vents for effective cooling
MIPS upgradeable
Phantom White
(Gloss)
Stealth Black
Maverick Grey
Lightning Lime
Salmon
Available in 5 striking colors
Maverick Grey
Stealth Black
Phantom White
(Gloss)
Lightning Lime
Salmon
Available in 5 striking colors
Full-on comfort
Every detail considered
Fully Adjustable FlexiFit System
Low profile and optimized for weight, it is adjustable both vertically and horizontally for no compromises on fit and comfort.
Dedicated Glasses Port
The OptiGrip Sunglasses Port on Ultra Fly provides you with a seamless, comfortable, and secure storage solution for your eyewear.
Directed Internal Air Venting
Ultra Fly’s efficient ventilation system channels airflow, promoting continuous cooling and moisture-wicking, even during intense cycling sessions.
Strategically placed reflective decals
Reflective decal makes you to be seen on road even in low visibility, either at nighttime or due to poor weather.
Back
Side
An exceptionally safe helmet
Upgrade to MIPS
The low-friction layer reduces rotational impact forces, protecting you from serious injuries and brain damage in case of a crash.
CPSC
EN 1708
Meets all International Certification standards
An exceptionally safe helmet
Upgrade to MIPS
The low-friction layer reduces rotational impact forces, protecting you from serious injuries and brain damage in case of a crash.
CPSC
EN 1708
Meets all International Certification standards
Built for Lumos Firefly
It’s not a Lumos helmet without the active smart safety features that keep you safe on your ride.

Add a Lumos Firefly to and
you’re good to go!
Learn more about what makes Firefly great!
Explore Lumos Firefly
Built for Lumos Firefly
It’s not a Lumos helmet without the active smart safety features that keep you safe on your ride.

Add a Lumos Firefly to and
you’re good to go!
Learn more about what makes Firefly great!
Explore Lumos Firefly

Minimalist helmet design to match any style

Who is Ultra Fly for?

Which option is best for me?
Ultra Fly
A great value & light helmet for daily commute
  • Incredible value
  • Great premium helmet features
  • Future upgradeable
$79.95
$39.98
Select
Ultra Fly
+ Firefly
Stay safe and be more visible on the road
  • Active smart lighting safety
  • Incredible value
  • Great premium helmet features
$119.95
$71.97
Select
Ultra Fly
Upgrade to enjoy extra safety on road
  • Excellent MIPS layer for additional torsional safety
  • Incredible value
  • Great premium helmet features
$109.95
$54.98
Select
Ultra Fly+ Firefly
Smart lighting & extra safety in one package
  • Active smart lighting safety
  • Excellent MIPS layer for additional torsional safety
  • Incredible value
  • Great premium helmet features
$149.95
$89.97
Select
What’s in the box
Ultra Fly + Firefly
Ultra Fly Only
Ultra Fly + Firefly Mini
Swipe to compare

Customer Reviews

Based on 13 reviews
38%
(5)
31%
(4)
8%
(1)
0%
(0)
23%
(3)
100.0
C
Charles Dunham
So far, so great

I haven't messed with the Firefly light yet, but I'm very happy with the helmet. It's lightweight, has reasonably good air flow and a surprisingly solid feel.

Hey there! Thank you very much for the 5-star rating! Wishing you many safe rides ahead. :)

P
P Baker
Did not receive yet

Hello. I didn't receive order yet. Hope it comes soon. Did you send to correct address?

Hey there P Baker. Thank you very much for the 5-star rating! Wishing you many safe rides ahead. :)

R
Robert Gauthier
A great lightweight MIPS helmet

Nice, lightweight, integrates with the Lumos light system very well and has enough nice touches like the eyeglass storage spot to really stand out. I have trouble getting a fit, but found this helmet fit perfectly out of the box

V
Virginia Turner
Great helmet

I love the light and the helmet and the customer service

D
Darlene Kluka

superb quality and...

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FAQs

Everything you need to know about our product
Can’t find the answer you’re looking for?
Please chat with us

CONTACT US
What makes the Lumos Ultra Fly unique compared to other bike helmets?
The Lumos Ultra Fly stands out with its perfect balance of smart lighting and performance. It's exceptionally lightweight, under 250g, making it ideal for long weekend rides. It features improved ventilation, a FlexiFit Retention System for optimal fit, an OptiGrip for sunglass storage, and a Firefly Port for enhanced visibility.
Is the Lumos Ultra Fly suitable for different types of cycling?
Yes, the Lumos Ultra Fly is designed for versatility. Whether you're commuting daily or enjoying weekend cycling adventures, this helmet is a perfect fit. Its lightweight design and enhanced safety features cater to a wide range of cycling activities.
How does the Firefly light enhance safety on the Lumos Ultra Fly helmet?
The Firefly light, which can be magnetically attached to the Ultra Fly, increases your visibility on the road. It's particularly useful for being seen during night rides or in low-light conditions. This added feature ensures that you're not only protected by the helmet itself but also by being more visible to others.
How long can the Firefly lights last on the helmet?
The battery life of each Firefly light depends on the flashing mode you choose. You can find them here https://ridelumos.com/products/lumos-firefly in the “Product Specifications” dropdown. Additionally, the beauty with replaceable lights is that you can switch out a new Firefly when the existing light runs out of power.
Will the helmets be able to fit a front light?

These helmets have a Firefly compatible port only in the rear in order to minimize weight.

How would the turn signals work with this helmet?

You would not be able to show turn signals with just the single Firefly light on the helmet, but you can mount additional Firefly lights on your bike to activate turn signals.

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