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Troy Lee Designs D4 Polyacrylite Mips MTB Helmet

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Pre-order now to secure yours.

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The D4 Polyacrylite Mips MTB Helmet delivers professional-grade protection without the premium price tag. Built with advanced Polyacrylite shell construction, it incorporates Mips® C2 rotational impact brain protection - the same technology found in higher-end models. The front air intake system with high-flow polymer center and power grid side mesh keeps you cool during aggressive descents, while the Collarbone Suspension System and quick-release 3D cheek pads ensure anatomically optimized comfort. Breakaway visor screws and anti-microbial padding complete a helmet engineered for serious mountain bikers who demand safety and performance.

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Order before 1pm daily for same day shipping

Orders are dispatched from our Cooma NSW store Mon - Fri

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Rhythm Snowsports Cooma

Rhythm Snowsports, 8 Sharp Street, Cooma NSW 2630

Summer Opening Hours

Retail & Hire

9am - 4pm daily

Service Station

7 am - 7pm (Midnight on Friday)

Winter Opening Hours

Open 24 hours (Subject to demand)

Rhythm Pop-Up Shop

132 Sharp St, Cooma NSW 2630

Summer Opening Hours

Mon - Fri

9am - 4pm daily

Saturday

9 am - 1pm

Sun

Closed

Winter Opening Hours

Mon - Fri

9am - 4pm daily

Saturday

9 am - 1pm

Sun

Closed

Sale

Troy Lee Designs D4 Polyacrylite Mips MTB Helmet

This product arrives .
Pre-order now to secure yours.

${variantStockMap[currentVariant.id]?.qty} in stock Out of stock

The D4 Polyacrylite Mips MTB Helmet delivers professional-grade protection without the premium price tag. Built with advanced Polyacrylite shell construction, it incorporates Mips® C2 rotational impact brain protection - the same technology found in higher-end models. The front air intake system with high-flow polymer center and power grid side mesh keeps you cool during aggressive descents, while the Collarbone Suspension System and quick-release 3D cheek pads ensure anatomically optimized comfort. Breakaway visor screws and anti-microbial padding complete a helmet engineered for serious mountain bikers who demand safety and performance.

Read more

Rhythm Membership

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Easy Returns

14 days for refund or 365 for exchange!
Our Return Policy.

Fast Dispatch

Order by 1pm and we ship that business day.
Our Shipping Policy.

Product Info

Helmet Type
Helmet Type

Bike helmet

Target Gender
Target Gender

Unisex. This product is designed without a gender fit in mind.

Sizing

Buying Guide

Reviews

Almost 40 years of racing, riding, designing and TLD now offers a full range of Moto and Bike equipment for riders of all types, Men, Women, Kids designed to be comfortable, offer superior protection and look different on the track and trail.
Shop all Troy Lee Designs

Fall 24 Bike Collection - Troy Lee Designs

Layer up for a season of change. The Troy Lee Designs Fall 24 Bike Collection is here.

Founded by Iconic Helmet Painter Troy Lee
Long sleeve kids mountain bike jersey in blue with white stripes.
Unique Designs That Make a Statement
Wide Range of Styles from Race-Specific to Casual
Blue open face bike helmet with green logo.
Helmets and Guards with Top Certifications