full face mtb helmet

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Up. Lock. Down. with the uvex jakkyl mountain bike helmet

The Uvex Jakkyl mountain bike helmet can adapt to any trail and terrain – uphill and down. Uvex presents a correspondingly versatile helmet with a detachable chin protector and further convenient details for ambitious Enduro pilots. The goal of the uvex developers was the perfect balance of fit, ideal ventilation, competitive weight – and, true to the uvex motto protecting people – maximum safety.

The uvex developers have been working on the uvex jakkyl hde for over a year together with the triple Fourcross world champion and Enduro professional Michal Prokop. In a few simple steps, the helmet changes from an all-mountain helmet to a full downhill helmet. The chin guard is mounted to the helmet in two simple steps and fixed using a turn-lock at the back. The mechanics are easy and work without tools. The entire process does not take more than ten seconds. In addition, the helmet is formed lower than conventional bike helmets on the sides and at the back, protecting a larger area of the head. The fastening for the goggles is integrated into the design. The helmet can be used with firmly fixed goggles, even in the version without chin protection.

An essential factor for physically demanding Enduro-tours: The elaborate ventilation system with 14 ventilation openings and interior ventilation channels of the uvex jakkyl hde ensures you keep a cool head. The core piece of the new uvex jakkyl hde helmet is the sophisticated multi-in-mold construction with eight individual PC shells that guarantee the best possible protection typical for uvex. The 360-degree BOA system ensures ideal fit and unique adaptation. Using a set dial at the back, the helmet is adjusted all around the head for a perfect fit. The clear advantage for bikers is that there is no unwanted helmet slipping during fast manoeuvres or jumps, a comfortable fit, and added safety.

Thanks to the interchangeable interior equipment and the detachable fibreglass chin protector that can be purchased individually, the uvex jakkyl hde perfectly adapts to every situation and every Enduro-rider.



The easiest Delivery & Returns

If you would like to purchase your uvex jakkyl hde helmet it will be dispatched the next working day from Durban and sent via courier to any address you choose in South Africa. Keep the packaging intact and the product in original condition and if you don’t like it send it back within 7 days for a full refund. If you are unhappy with the size and would like to swop for a larger one send it back and we will send a replacement free of charge.




52-57 cm, 56-61 cm




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To determine your helmet size you need a tape measure. Put the tape around the back of the head and run together about 1cm up from your eyebrows (including your hair). The measurement is your helmet size. If your measurement falls between sizes always opt for the bigger size

How to measure for the correct cycling helmet size


XXXS-XS (Kids) XS-S (Kids) S-M (Teens) M-L (Adult) L-XL (Adult)
46-52cm 51-55cm 55-58cm 52-57cm 56-61cm


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