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The Leatt MTB All-Mtn 4.0 helmet seamlessly fuses style with cutting-edge protection, embodying the spirit of alpine adventure.
The Leatt MTB All-Mtn 4.0 helmet seamlessly fuses style with cutting-edge protection, embodying the spirit of alpine adventure.
Leatt

Leatt All Mtn 4.0 MTB Helmet 2025: S 51- 55CM PEANUT s 51-55cm

£169.99
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

RETURNS

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Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.



Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:
Gift cards
Downloadable software products
Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted: (if applicable)

Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened.
Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
Any item that is returned more than 30 days after delivery
Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at sales@activesport.co.uk.

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at sales@activesport.co.uk and send your item to: 115 Spring Gardens, Buxton, SK17 6BX, United Kingdom.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping

To return your product, you should mail your product to: 115 Spring Gardens, Buxton, SK17 6BX, United Kingdom.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Leatt All Mtn 4.0 MTB Helmet 2025: S 51- 55CM PEANUT s 51-55cm

Brand:Leatt

Code:LE1024120370

Discover the pinnacle of mountain biking with the Leatt MTB All-Mtn 4.0 helmet.

This helmet is created for those who venture where the air is thinner and the trails are tougher. Whether you are a traditional mountain biker or an ebiker enthusiast, experience a helmet that seamlessly fuses style with cutting-edge protection, embodying the spirit of alpine adventure. The ultra-stylish design is not just about looks; the helmet houses 360° Turbine Technology, significantly reducing brain acceleration during impacts. Its features include an adjustable visor and sunglasses dock port, making it the perfect companion for high-altitude escapades. Enjoy all-day comfort, mountain-ready durability, and unmatched functionality in one helmet. Dive into the new age of mountain biking with the MTB All-Mtn 4.0.

Renowned for its ventilation and comfort, this enduro MTB helmet has been advanced from the much-loved 4.0 full face helmet. The heart of the Enduro 4.0 is the structurally sound and easy-to-operate removable chin bar design, but its adaptability goes much deeper. A removable mouthpiece in the chin bar increases ventilation or can be installed to protect you when riding in poor weather conditions. A universal sunglasses dock lets you safely dock your sunglasses under the visor when not in use, protected from scratches and unwanted impacts. The adjustable visor extends enough to place your goggles underneath, so you do not have to constantly remove them. This fully ASTM DH certified helmet is the go-to helmet for enduro riders. Uphill or downhill, E-bike or trail, the Leatt 4.0 Enduro helmet has you covered. The full-face design with removable chin bar and an incredibly strong magnesium lock offers outstanding ventilation, and its convenient Fidlock buckle is easy to operate even when your fingers are cramping with arm pump. All Leatt helmets feature 360° Turbine Technology. This design utilizes a network of small discs constructed of a non-Newtonian, energy-absorbing material. Because these Turbines can move 360° (omnidirectional), this technology has two exclusive advantages: namely the reduction of rotational acceleration to the head and brain and the absorption of energy upon impact at concussion level.

Features:

  • Lightweight polymer shell
  • Removable chin bar with new easy-fit attachment system
  • 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
  • Maximized ventilation with 18 vents. Optimized for riding and effective even at low speeds
  • Moisture wicking, breathable, anti-odor and washable inner liner
  • In-molded EPS + EP0 impact foam for superior energy absorption
  • Optimal neck brace compatibility
  • Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15
  • Weight: From 430g (0.95 lbs)
  • Sizing: 51-55cm (20-21.6"); 55-59cm (21.6-23.2"); 59-63cm (23.2-24.8")
Sizing Information
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