HAMMERHEAD Karoo Color Shells: Elevation Series GRX our Top Tier Aero Road

our Top Tier Aero Road model will have you smiling from ear to ear from the sheer thrill of unadulterated speed

Dual and Tubi

Fully compatible with Lezyne CLIK CHUCK solutions for faster

2 Chain Checker is a drop-in style gauge that measures bicycle chain wear

HAMMERHEAD Karoo Color Shells: Elevation Series GRX our Top Tier Aero RoadCustomize more than your data screens and routes. The Karoo Color Shell gives you full control to customize your style as an extension of your bike or kit. The Karoo Color Shell includes everything you need for installation. Shells are interchangeable, so you can mix and match multiple shells, buttons, and USB cover colors.