Metric Helmet - Matt Moody Blue - Bobbin®

Metric Bike Helmet - Matt Moody Blue

Regular price £49.00 GBP Save Liquid error (product-template line 117): Computation results to '-Infinity'%

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span style="font-weight: 400;">Ticking all the boxes for a classic unisex everyday bike helmet, the Metric is so lightweight you’ll forget it’s on your head. With a peak, 11 vents, comfy padded chinstrap and dial-fit system, it has a slim elegant profile and fit. Constructed using the in-mould process for a seamless shell, it's fully EN1078 and CPS tested for your safety. One size fits all for 54-62cm heads.

Top tip: measure your head with a measuring tape before ordering and check the size guide below.

Model Name


(kids and toddlers heads)


(kids and small adult heads)


(large kids heads and adult heads)

One Size

(fits most adult heads)






Starling or Disco





Mirror Mirror










Which size helmet should I go for?

The best way to make sure the helmet will fit you is to measure your head. This is also the case for kids as age is not a good indicator. 

This is the best way to do this:

  • Have a flexible tape measure and place it around the circumference of your head.
  • Position the tape measure at the middle of your forehead, 2 fingers above your ears and at the widest point at the back of your head.
  • Note the result and then browse our amazing helmet range! Be aware that sizing varies from model to model.

Gloss or Matte

Bobbin's Metric bike helmet range features colour options in either a matte or gloss finish.

man and woman standing against in a brick wall in Bobbin metric helmets

Style For All

The Metric helmet range is unisex and looks fantastic on anyone!

Fully Adjustable

With dial-fit system, foam padding, and an adjustable strap for comfort.

More About Metric Helmets

Tested On a Range of Head Sizes
Use our sizing chart to find the Bobbin helmet that perfectly fits your head size. Simply measure your head circumference and match it up to the ideal size in our adult helmets and children’s bike helmets range.

Whatever bike helmet size you settle on, you can always adjust it later using the dial-fit system and straps.

Built For Safety
Adhering to safety standards, Bobbin helmets are EN1078 and CPS tested for your cycling safety. Get peace of mind and a stylish accessory all in one.

A Range Of Designs
With a wide range of colours and styles available, the Metric stands out among our cool and cute bike helmets due to its peaked visor. This stylish helmet comes in matte colours and is lightweight (270g) for added comfort.

Provides Protection
So if something light is the ideal choice for you, buy a Metric helmet from Bobbin safe in the knowledge that our safety-tested helmets can help prevent head injury. With effective protection and timeless style - how could you go wrong?

Great Ventilation
Ventilation holes in the Metric helmet keep the rider's head cool to create a more enjoyable riding experience no matter the weather.

Your Bobbin Bike Helmet
Our funky bike helmets aren't just here for fun. We wanted to provide our customers with an inexpensive helmet that would keep them safe (without ruining their outfit!). So pick your size, favourite colours, and preferred style from our range of cycling helmets today!

“Great quality helmet for a really reasonable price and amazing customer experience ordering and receiving in one day.”

"Great quality helmet for a really reasonable price."

Barbara Walker

“Absolutely fantastic quality, 2 beautiful bikes, helmets and handlebar tassles for 2 very lucky ladies this Christmas. Can't fault the customer care and service you get from these guys 10/10 ⭐⭐⭐⭐⭐”

"Can't fault the customer care and service you get from these guys 10/10 ⭐⭐⭐⭐⭐”

Thomas Ferneyhough

“These guys helmets are simply awesome! So cool and funky. For people going to buy for the first time however make sure you measure your head correctly (see their super helpful guide) otherwise you'll have to order another one. Highly recommended.”

“These guys helmets are simply awesome! So cool and funky. Highly recommended.”

Robert Williams