100% Altec MTB Helmet
- ShowProduct Information 100%'s ALTEC is the advanced rider’s choice for confidence inspiring, protective, lightweight and ve... read more
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Product Description
100%'s ALTEC is the advanced rider’s choice for confidence inspiring, protective, lightweight and ventilated All-Mountain helmet.
Featuring Smartshock® suspended rotational system, the ALTEC’s Smartshock® elastomers reduce energy transfer to the brain over a wide range of speed and impact types.
Key Features:
- Smartshock® - 14 Point Smartshock® Rotational Protective System
- Multi-Density EPS foam - injection molded with polycarbonate
- Massive airflow - With an impressive 15 ventilation ports
- Altec 350g/M-Shell - Expanded coverage while still lightweight
- Sunglass Storage - Integrated sunglass storage system
- Multi-point adjustable visor designed - For maximum vision and goggle stowage
- Anti-Microbial liner - Washable, moisture-wicking
- Adjustable Ratcheting Fitment System
- Nexus Push Release Snap-Buckle
- Size-specific molds - XS/S, S/M, and L/XL
In The Box:
- Extra comfort-liner for customized fitment
Occasionally, without notice, manufacturers change product design and/or specifications.
100% Altec Sizing
100% Altec Size Guide
|
Size |
Head Circumference |
Liner |
Spare Liner |
Liner Compatibility |
|
XS / S |
50 - 55cm |
10mm |
12mm |
XS / S Only |
|
S / M |
55 - 59cm |
10mm |
12mm |
S / M Only |
|
L / XL |
59 - 63cm |
10mm |
12mm |
L / XL Only |
Read our clothing size guide for more information on sizing.
Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!
Mountain Bike Helmet Guide
Mountain Bike Helmet Guide
MTB Helmets
A mountain bike helmet needs to protect your head, while being comfortable enough to wear all day long. Fit and venting are key, and we will look into this further below. When it comes to protection, all our MTB helmets meet the minimum safety standard (CE EN 1078). Some go much further with enhanced safety features like dual density cores and MIPS.
Features to look out for in an MTB helmet:
Shell
All mountain bike helmets have a hard shell covering the foam core. Nowadays most MTB helmets have in-moulded shells which are bonded securely to the core rather than just stuck on. Some MTB lids have more coverage around the back of the head and are designed for more aggressive trail and enduro riding. The shells on higher end lids overlap the edges to protect the core from wear.
Core
Underneath the shell is the EPS foam core. This is the part of the helmet that will absorb the force of impact if your head hits the ground in a crash. Some higher end MTB lids have dual or multi density EPS cores which offer improved impact protection. Helmets designed for more aggressive riding may features additional ‘Roll Cage’ strengthening elements. These are moulded into the EPS core, and help to hold the structure of the helmet together under impact.
MIPS
A Multi-directional Impact Protection System (MIPS) is fitted between the helmet core and your head. This slip-plane technology reduces the rotational forces that result from certain impacts. Integrated into the fit system, MIPS is found on high-end MTB helmets and takes head protection to the next level.
Fit & Straps
Fit is also an important safety consideration. All MTB helmets have an adjustable fit system that makes sure the helmets stays securely attached to your head. Higher-end mountain bike lids often feature a retention system that wraps around more of your head. This helps to hold the helmet in place for a more secure fit as well as improved comfort. One handed adjustment dials make it easier to get the perfect fit. Chin straps are there to keep your helmet in place even if you take a knock on the head. These straps are fully adjustable on all helmets. Premium MTB lids often have easy fit buckles which make it easier to get your helmet on and off.
Liner
The padded liner is the bit of the helmet that connects directly to your head. If you ride a lot, then features to look out for are quick drying, hydrophilic and anti-microbial padding. These will help keep your head smelling sweetly on every ride. Some high-end lids have systems that the move sweat away from your brow to keep it out of your eyes and off your eyewear.
Ventilation
Keeping your head cool as you ride is essential. All MTB lids have vents to keep the air moving over your head and cool you down. Overheating is more of an issue on the climbs as you are moving slowly while putting in a lot of effort. If your ride focus is on rapid climbing, then ventilation is a very important consideration. If you take it easy on the way up, to save your energy for the downs, then you won’t need as much venting. Generally speaking, more and/or larger vents will increase the amount of airflow over your head. While the size and number of vents is important, you should also consider their position. Vents close to the brow offer cooling where you need it most. Internal airflow channelling draws air in and circulates it around your head for more efficient cooling.
Visor
Compared to road cycling, you have a more upright position on a mountain bike. This is why mountain bike lids come with visors, to keep the sun or rain out of your eyes. Many MTB helmets have removable visors as some riders prefer to cycle without them. You can raise and lower adjustable visors easily while you are riding. This means that you can move the visor out of the way, for unrestricted vision, when it’s not needed.
Goggle Compatibility
Goggles are a great way to keep dust, and mud out of your eyes on rowdy descents. Some enduro style MTB helmets are designed to work with goggles. Strap grippers on the rear help to keep the goggle in place. High rise adjustable visors mean you can park them on your head when it’s time to climb up for another run.
Action camera mounts
With a dedicated action camera mount, you can attach your GoPro securely to your helmet. Break-away mounts are the safest way to attach your action camera.
A lighter helmet will be more comfortable on your head but may offer less protection than a bulkier lid. Extra head coverage and additional structural elements all add weight. That said even bulky enduro style MTB helmets are lightweight enough for you to wear comfortably on all-day-long rides.
It is important to get a helmet that fits correctly. Simply measure the circumference of your head and match it to the helmet size. Do this by placing a tape measure on the centre of your forehead and wrap it around your head above the ears. See our clothing size guide for more details.
Finance
Delivery & Guarantee
UK Delivery Information
International Deliveries – Temporarily Suspended 11/11/20
Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey. We are no longer delivering to Northern Ireland.
Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.
Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.
Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.
Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause.
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.
Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.
Please note that Pre-Order dates can sometimes change due to updated stock information.
Click here for more UK and international delivery information.
Returns & Warranty
It's easy to return a product with our 365 day, hassle free returns.
We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.
For more information please visit our Returns & Warranty page.
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