Troy Lee Designs D4 Composite MIPS BMX Race Helmet-Lined Up White crank-brothers Tests conducted today at the

Tests conducted today at the Rennen lab prove that if you keep your distance between 1-2mm of spacing everything is good

Continuing with Rennen's tradition for engineering the best racing components

The I-SPEC EV system allows for a clean

making it an ideal choice for enhancing braking efficiency and responsiveness on demanding BMX terrain

Troy Lee Designs D4 Composite MIPS BMX Race Helmet-Lined Up White crank-brothers Tests conducted today at theThe Troy Lee Designs D4 Composite MIPS BMX Race Helmet Lined Up White is made of aerospace composite with a slick design that keeps the weight at just 1050g. Racers need tough and lightweight protection in a helmet and Troy Lee Designs delivers. Featuring the brilliant MIPS protection system for helping to mitigate those off angle impacts and 24 vents for great airflow. X Static and XT2 anti microbial, anti odor materials keep your helmet fresh,