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- SIZE GUIDE
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TRAILBLAZING TECHNOLOGY
Introducing the Leatt MTB All-MTN 3.0 helmet, made for next-gen mountain adventurers who breathe alpine air and crave thrilling descents. With fresh colours and a clean, innovative design, this is more than just a helmet – it's a sign of the adventurous mountain spirit
Incorporating a unique PowerBridge structure to disperse impact forces, as well as Leatt’s groundbreaking 360° Turbine Technology, the MTB All-MTN 3.0 helmet promises unmatched safety on challenging terrains. From the sunglasses dock port to its superior ventilation, every feature is crafted for comfort and protection. Embrace the mountain's call and be prepared for every ride with the MTB All-MTN 3.0 Helmet
PowerBridge in-molded force absorber
- Lightweight polymer shell in three sizes
- Sunglasses dock port for easy, secure storage
- Fidlock magnetic closure system
- 360° Turbine Technology
- Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion
- Reduces peak brain rotational acceleration by up to 40%
- Adjustable visor with breakaway function for rotational impact force reduction
- In-molded impact foam for superior energy absorption
- Maximized ventilation with 20 vents effective even at low speeds
- Moisture wicking, breathable, anti-odor and washable inner liner
- Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203
- Weight: from 350g (0.78 lbs)
Sizing
#S (51-55cm – 20-21 58")
#M (55-59cm – 21 58- 23 14")
#L (59-63cm – 23 14 - 24 34")
| Order Value | Service | Estimated Delivery | Cost |
|---|---|---|---|
| Under £39.99 | Royal Mail Tracked | 2–3 working days from dispatch | £4.99 |
| £39.99 and over | Royal Mail Tracked | 2–3 working days from dispatch | FREE |
| Any order — Express | Royal Mail Tracked 24hr / Parcel Force 24hr | Next working day from dispatch | £6.99 |
| Bikes | Parcel Force 48hr Signed For | 2 working days from dispatch | FREE |
Delivery times shown are from dispatch, not from the point of ordering. As we source products from a range of suppliers, lead times can vary — please check the product page, your cart, or your order confirmation for the most accurate estimate for this item.
Some remote UK postcodes (Highlands, Islands) may carry a courier surcharge on larger orders — we will always contact you before applying any additional charge.
Questions? Email sales@cyclestore.co.uk with your order number.

