Troy Lee Designs - D4 Composite Optic MIPS Helmet (MTB)
SKU: 81180175043

Troy Lee Designs - D4 Composite Optic MIPS Helmet (MTB)

Sale price$4849.65 Regular price$5388.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Troy Lee Designs - D4 Composite Optic MIPS Helmet (MTB)Troy Lee Designs D4 Composite Optic MIPS Helmet (MTB) D4 Composite Optic MIPS Helmet is a Troy Lee Designs mountain bike helmet built for mountain bikers who want full time confidence. The D4 platform is known for downhill focused coverage and a locked in feel when the terrain gets steep and fast. The composite build gives it a balanced mix of feel, durability, and value for regular riding. The Optic treatment gives this helmet a more individual feel

Troy Lee Designs - D4 Composite Optic MIPS Helmet (MTB)

D4 Composite Optic MIPS Helmet is a Troy Lee Designs mountain bike helmet built for mountain bikers who want full-time confidence. The D4 platform is known for downhill-focused coverage and a locked-in feel when the terrain gets steep and fast. The composite build gives it a balanced mix of feel, durability, and value for regular riding. The Optic treatment gives this helmet a more individual feel than a plain solid option. The MIPS-equipped build adds another layer of confidence for riders who prioritize modern helmet technology.

It carries the kind of mountain bike fit that feels settled when speeds rise, but not so heavy or cumbersome that it becomes a distraction on the pedal back up.

Why We Like It: it fits the way a modern MTB helmet should: secure, ventilated, and ready for real terrain.

Why It’ll Work for You: This is a strong pick when you want a mountain bike helmet that feels at home on everything from rough local descents to destination riding.

Variants / Options: multiple sizes and colorways available; check the selector for current stock.

Key Features:
  • Always Evolving. Built with an aerospace shell design and materials, we were able to get the D4 Composite helmet to 1050 grams without sacrificing any strength. Mips® C2 protection system is used to add an additional layer of safety in the event of a fall. For comfort, the D4 Composite routes cooling air through a front air intake system that flows through the polymer center and power grid side mesh keeping your head cooler during the ride. X-static® and XT2® anti-microbial/anti-odor padding keep the inside of the helmet a much nicer place to be.
  • Mips® C2 Rotational Impact Brain Protection System
  • 20 high-flow intake and exhaust ports for maximum ventilation
  • Added EPS and new headform shape for improved impact performance
  • Full incremental sizing for greater range of fitment
  • Strategically placed interior chinbar shock pads for comfort and durability
  • Quick-release and contoured 3D cheek pads for emergency helmet removal
  • Purpose-built internal cavities for audio integration
  • Stainless steel chinstrap D-rings are light and strong
  • Includes TLD drawstring helmet sock
  • Exceeds bicycle certifications: CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81180175043

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 1597 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Sandra S
Port Orchard, US
★★★★★ 3
Perfect size, good privacy
Size: 4 Panel-88‘’Wide, Color: Black
This is a good divider. The dark, thick panels provide blockage from the light. Assembly was not very hard, but it wasn't simple. I ordered this product two times in the past couple of weeks. The first time I assembled it, I noticed that the picture assembly directions aren't completely accurate. The labeled parts don't match the labels on the instructions. The wrench included in my box is too big for any of the bolts or screws used for assembly. After getting the right tools and matching against the instructions, I finally got it assembled. The divider I ordered this week is missing two wheels and there is no number for calling the supplier; thus, I seem forced to return it, instead of easily getting the two wheels. Once assembled, I am pleased with the end product and I consider it a good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2024
J
Verified Purchase
Joseph boodoo
Battle Creek, US
★★★★★ 5
Good but missing canopy
Size: 4 Panel-88‘’Wide, Color: Black
But I still haven’t recieved my canopy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
B
Verified Purchase
Barbara McCloud
Battle Creek, US
★★★★★ 5
Nice and strong
Color: Black, Size: Wheel-6 Panel
Nice and strong, tedious, putting together, but very good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
A
Verified Purchase
Al Tompkins
Dallas, US
★★★★★ 5
if you are going to be moving them a lot, buy something more sturdy.
Color: Black, Size: Wheel-6 Panel
I use these at our churchc. They are pretty good, not terribly study and the screw that hold the faabric have pulled out in a couple of places. But they wqould work especially well if you were not constantly moving them as we do. They are a bit of a pain to assemble.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026
J
Verified Purchase
Julie Lincoln
Massapequa, US
★★★★★ 4
Easy to put together , decent quality
Color: Black, Size: Wheel-6 Panel
Purchased for office, easy to put together , durable quality , exactly what we needed to partition a small space
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025

recommand products