SKU: 31148572186

Troy Lee Designs - Lightning D4 Carbon MIPS Helmet (MTB)

Sale price$148.50 Regular price$165.00
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Troy Lee Designs - Lightning D4 Carbon MIPS Helmet (MTB)Troy Lee Designs Lightning D4 Carbon MIPS Helmet (MTB) Lightning D4 Carbon MIPS Helmet is a Troy Lee Designs mountain bike helmet built for trail riders. The D4 platform is known for downhill focused coverage and a locked in feel when the terrain gets steep and fast. Carbon construction points to a lighter, more premium feel that works well for riders chasing high end performance. In the Lightning colorway, it brings a strong visual identity without

Troy Lee Designs - Lightning D4 Carbon MIPS Helmet (MTB)

Lightning D4 Carbon MIPS Helmet is a Troy Lee Designs mountain bike helmet built for trail riders. The D4 platform is known for downhill-focused coverage and a locked-in feel when the terrain gets steep and fast. Carbon construction points to a lighter, more premium feel that works well for riders chasing high-end performance. In the Lightning colorway, it brings a strong visual identity without losing the performance-first focus of the helmet. The MIPS-equipped build adds another layer of confidence for riders who prioritize modern helmet technology.

The fit is aimed at riders who need their MTB helmet to stay composed on technical descents while still feeling comfortable during transitions, climbs, and longer days outside.

Why We Like It: it gives riders a stable feel on rough descents without turning every climb into a chore.

Why It’ll Work for You: It works well for riders who split time between trail loops, enduro stages, and lift-served laps and want one mountain bike helmet that feels ready for all of it.

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

Key Features:
  • MIPS brain protection system, reduces rotational forces to the brain in some crash scenarios
  • TeXtreme® Spread Tow carbon fiber shell
  • Three shell sizes to more accurately fit a variety of head sizes and rider ages, improving overall safety
  • Anatomical "3D” contoured cheek pads with emergency release system for EMS responders
  • Removable snap-in, washable comfort liner with Coolmax® and Dri-lex® moisture-wicking materials
  • Super light titanium D-rings save weight and have increased material tensile strength
  • 1000g
  • CPSC 1203*, CE EN1078*, ASTM F1952-DH, ASTM 2032-BMX. *Varies by regional standards

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: 31148572186

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Amazon Customer
Whiting, US
★★★★★ 4
sleeves long
I'm 5'6" and stocky but the sleeves are too long and slip over to rest half way down my hand. If your 5'9 or taller you will be fine.
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Reviewed in the United States on December 15, 2025
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Frank K...Cape Cod MA
Phoenix, US
★★★★★ 5
Quarter zip
Great quarter zip, high quality, very nice material and comfortable. Buying 5 more colors
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Reviewed in the United States on February 16, 2026
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John LiCata
Fort Morgan, US
★★★★★ 5
Great fit
Color: Cream, Size: X-Large
Great fit and feel- my son loved it
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Reviewed in the United States on March 6, 2026
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Tim R.
Dallas, US
★★★★★ 5
High quality
Wow what a pullover. If I could give 10 stars I would go off of your chest size. Perfect fit and super high quality.
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Reviewed in the United States on February 15, 2026
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Alfredo Fernandez
Chelsea, US
★★★★★ 5
LOVE IT
Color: Light Blue, Size: X-Large
LOVE IT!!!! Coming for more!!!! Perfect fit, perfect size, i simply love it
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Reviewed in the United States on March 31, 2026

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