Helix Core e*spec Steel E-MTB Chainring tool Turbocharger upper sliders fit all

Turbocharger upper sliders fit all e*thirteen e*spec Chainguides

A dual end cap system means the same hub runs as either Boost 15mm or 15/20mm depending on your fork

Match and personalize the way you want

This center knob configuration also helps to provide a more predictable feel and consistent traction when transitioning from straight-line to aggressive cornering angles

Helix Race Gravel 12-speed

Helix Core e*spec Steel E-MTB Chainring tool Turbocharger upper sliders fit allHelix Core e*spec Direct Mount Chainrings feature our narrow wide tooth profile, for reliable chain retention and an extra long wear life. Helix Core e*spec rings are cold formed from steel and then heat treated to provide excellent durability and toughness, all at a price that's easy on your wallet. Long lasting and economical steel construction M4 narrow wide tooth profile (our latest M5 profile on Avinox rings) for excellent chain retention and