Nutcase Street (Onyx) w/MIPS – Teen & Adult Helmet (Small)

Original price was: $159.99.Current price is: $134.95. inc. GST


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The Nutcase Street collection combines the industry-leading safety feature MIPS with all-new Nutcase-inspiring designs for teens and adults alike. Featuring an improved retention system to provide a secure, comfortable fit and 2x the reflectivity for visibility on the road. 10 redesigned air vents increase the airflow to keep your brain cool and 30+ new designs keep you looking even cooler.

Nutcase Street (Onyx) w/MIPS – Teen & Adult Helmet (Small)
$159.99 Original price was: $159.99.$134.95Current price is: $134.95. inc. GST








    Best Street Helmets For Teenagers & Adults

    Impress the world with a helmet designed to turn (and protect) heads — introducing the Nutcase Street Helmet for Teens & Adults. Certified to keep you safe on your bike and while you skate, each helmet comes equipped with MIPS, our EPS foam pads, and a durable ABS shell for ultimate protection. Just snap and go with the magnetic buckle, which you can easily use with one hand. Choose your favourite print and watch it shine thanks to a highly reflective coating that keeps you seen when the sun goes down. The adjustable dial system on the back allows you to customize the fit, while 11 contoured vents keep your head cool and comfortable. Creative, expressive, and loaded with extra protection, the Street is a no-brainer.


    Nutcase Street (Onyx) w/MIPS – Teen & Adult Helmet

      • Featuring the industry leading MIPS Safety Feature for Best in Class Protection.
      • High performing injection molded ABS shell and tuned EPS foam to keep you safe on the road.
      • Improved ventilation to keep you cool.
      • Premium Fidlock magnetic closure for one handed snap and go buckle.
      • 3 piece internal heat sealed pads to provide next to brain comfort.
      • Simple dial adjustable fit system provides safety, individualized fit and comfort.
      • 2x reflectivity for increased visibility on the road.
      • 3 sizes: Small (52cm-56cm), Medium (56cm-60cm), Large (60cm-64cm)
      • CPSC 16 CFR 1203 and ASTM F1492 Certified.
      • Visor Included.


    "Hey Nutcase, My story isn’t insane or anything, I just feel compelled to say ‘thank you’ for making rad helmets that are fun to wear. I ride my bicycle everywhere, and as it happens, I got hit head-on by a car last night. I shattered the windshield, flipped over the car and landed on the other side. Despite all that, I walked away from the accident with my brains intact. All the ER nurses were impressed with my helmet. Thanks for being awesome,

    - Libby


    TYPE: Teen & Adult Helmet

    BRAND: Nutcase

    MODEL: Street Helmet

    MIPS: Yes



    SIZE: Small, Medium, Large

    WEIGHT: (S) 520g – (M) 590g – (L) 645g

    YEAR: Teenager to Adults

    VENTILATION: 11 vents

    REMOVABLE VISOR: Yes Included

    Determining Your Helmet Size

    The proper helmet fit is one of the most important factors for safety and comfort. A snug, aligned fit will achieve a safe and secure ride. Below are 3 simple steps to determine the proper helmet size.

    Step 1


    Measure the circumference of your head with a tape measure – roughly 2.5cm above your eyebrows.

    Take several measurements to make sure you have the largest size.

    If you do not have a tape measure, use string or a phone charger cable and measure it against a ruler.

    Step 2


    Once you have determined your helmet size, try it on. The helmet should be worn level on the head, and hot slide or move freely when you roll your head form side to side. 

    If this is the case, you have a helmet that is too large. Extra padding may help provide a better, more snug fit.

    Step 3


    Be sure the front of the helmet lays just above your eyebrows and that the back of the helmet does not touch the nape of the neck.

    The chin strap should fit snug to where you can only insert 2 fingers. If thee skin on your forehead moves slightly, you have a good fit.

    Nutcase Helmets Size Chart

    Nutcase Collection Head Size Suggested Age
    Baby Nutty
    48cm – 52cm
    12 to 36 months
    Little Nutty Toddler
    48cm – 52cm
    3 to 5 years
    Little Nutty Youth
    52cm – 56cm
    5 to 8 years
    Adults Helmet S
    52cm – 56cm
    8 years to Adults
    Adults Helmet M
    57cm – 60cm
    Teens to Adults
    Adults Helmet L
    61cm – 64cm
    Teens to Adults

    What is MIPS?

    *MIPS is a low-friction layer that sits between your baby’s brain and the helmet. The liner would slide 5 to 15mm in all directions if there were an impact, reducing damaging forces to the brain.

    mips helmet technology nutcase helmets australia


    Nutcase Helmets Australia

    Nutcase helmets combine the best in helmet design with color and panache to make wearing a helmet fun.

    They also have the simplest buckles — auto-clicking magnetic clips that are quick and easy to secure and remove. All helmets come with a removable sun visor and are readily adjusted using a rear dial. Their head-hugging shape provides optimal protection, while a set of foam inserts helps give you a perfect fit.

    Nutcase helmets come in various adult and kids helmet sizes. As well as bike riding, Nutcase Street Helmets are also suitable for skating, roller skating, or foot-scooters.

    Kidvelo Bikes is an authorized dealer of Nutcase helmets.

    Street Helmets Collections

    “The Most Fun a Helmet Ever Had”


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