D4 reigns king atop downhill podiums and freeride events across the globe. Available in carbon and composite, details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates MIPS protection with an EPP chin bar and anatomical cheek pads with emergency release.
D4 reigns king atop downhill podiums and freeride events across the globe. Available in carbon and composite, details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates MIPS protection with an EPP chin bar and anatomical cheek pads with emergency release.
in 3 offers
The lowest price for Troy Lee Designs D4 Composite Matrix Bike Helmet w/MIPS Blue Xs right now is $332.60 at btosports.com, compared across 2 retailers.
The all-time low was $331.13 on 7 May 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 12 May 2026.
Troy Lee Designs D4 Composite Matrix Bike Helmet w/MIPS Blue Xs
D4 reigns king atop downhill podiums and freeride events across the globe. Available in carbon and composite, details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates MIPS protection with an EPP chin bar and anatomical cheek pads with emergency release.
D4 reigns king atop downhill podiums and freeride events across the globe. Available in carbon and composite, details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates MIPS protection with an EPP chin bar and anatomical cheek pads with emergency release.
Last updated at 12/05/2026 17:58:31
Troy Lee Designs - D4 Composite Matrix MIPS Helmet (MTB) - Blue XS
Delivery $49.89
Troy Lee Designs D4 Composite MIPS Helmet Matrix Blue New 2023
Delivery between 19–22 May $28.08
Troy Lee Designs D4 Composite MIPS Helmet Matrix Blue New 2023
Delivery between 19–22 May $28.08
Troy Lee Designs - D4 Composite Matrix MIPS Helmet (MTB) - Blue XS
Delivery $49.89
Troy Lee Designs D4 Composite MIPS Helmet Matrix Blue New 2023
Delivery between 19–22 May $28.08
Troy Lee Designs D4 Composite MIPS Helmet Matrix Blue New 2023
Delivery between 19–22 May $28.08
