SKU: Product Code: TLD139437012
Troy Lee Designs D4 Carbon Helmet Stealth Black
Troy Lee Designs D4 Carbon Helmet Stealth Black
The D4 Carbon helmet is the latest in the legendary Troy Lee Designs Daytona series. The D4 Carbon builds on the success of the best full face helmets ever to be the most advanced downhill, freeride, and BMX helmet going. It is sure to continue the legend and pro success of Troy Lee Designs D3 and is the go-to for anyone seeking the very best.
The D4 Carbon helmet has a carbon fibre shell. The carbon has a spread tow construction that uses straighter fibres than standard carbon fibre. This results in a thinner laminate that reduces weight while achieving a greater rigidness, increased strength, and improved impact tolerance.
The MIPS Brain Protection System in the D4 means the Troy Lee helmet delivers ultimate protection. MIPS is a layer in the helmet that allows the head to slide relative to the helmet. This reduces any rotational movement that would affect the brain.
A collarbone suspension system improves safety by directing pressure away from the collarbone in case of any tumbles.
As a result, The D4 has the most protective energy system Troy Lee Designs has ever given its riders. The new full face MTB helmet is certified to CPSC 1203, CE EN1078, ASTM F1952 (DH), and ASTM 2032 (BMX) safety standards.
Top protection, badass looks, and a pedigree that no one can touch. The D4 is set to continue Troy Lee Design’s legacy for years to come.
- Spread tow carbon fibre shell
- MIPS Brain Protection System
- Ventilation channels and headliner promote airflow
- Lightweight titanium D-rings and hardware
- Collarbone suspension system
- Break-away visor screws
- Quick release XT2 3D cheek pads and X-static/XT2 washable liner
- Includes TLD helmet bag
- 1000g
Share

FAQS
Need some help? Check some of our most frequently asked questions
What are the delivery times?
We offer multiple shipping options for UK customers including Royal Mail Tracked 48/24 services, UPS Next Day and UPS Saturday delivery. You can find these at checkout.
For international customers shipping times may vary depending on location and the size of your order. You can get shipping prices at checkout automatically after adding your shipping address and local UK VAT is removed from your order. For full shipping information please check here: https://alansbmx.com/pages/delivery
Do the bikes arrive pre-built or will they need to be assembled?
Bikes arrive in a flatpack state and require the Handlebars, Seat, Pedals, Accessories and adjustment by a qualified cycle mechanic for the warranty to be valid. We do offer our Ready2Ride service where we build the bike here at the shop from our mechanics, adjust everything and keep your warranty intact, all you need to do is turn the bars straight and attach the pedals and you are ready to shred! There is an additional cost due to the oversize box and you can find this as an option on the product page or contact us.
Do you ship worldwide?
We ship worldwide and offer free shipping to Germany, France, Belgium, Netherlands and Luxembourg on orders over 300 Euro.
Dont see your country as an option? Get in touch on sales@alansbmx.com.
We remove our local UK VAT but you will need to pay import fees at the border of your country. Unfortunately AlansBMX cannot calculate these import fees as they are specific to your country. For USA customers orders under $800USD are tax free.
Do you offer finance?
We offer finance options at checkout for our UK customers from multiple providers, At this time we cannot offer finance to international customers.