Excellent protection with "Turtle" technology - Front and back armour for a double Turtle effect

Prepare yourself for any environment

SH47 top case resists extreme temperatures and protects the internal gear from snow and rain

time trial and endurance performance as well as enhancing recovery rate

OneUp - S3 Low Direct Mount Chain Guide Atlas Excellent protection with "Turtle" technologyEliminate dropped chains forever and more than double your chainring lifewith the new OneUp Components Low Direct Mount (S3 E type). At only 20g the OneUp S3 E type Chain Guide weighs less than a sip of water, and can save you money in less than a season. The first chain guide designed to be both Oval and Boost compatible. WHY DO I NEED A GUIDE AND A NARROW WIDE CHAINRING? Narrow wide chainrings are awesome, but they're not perfect and every once in a