Helix Core e*spec Steel E-MTB Chainring tool Run Flux Pro 43 front

Run Flux Pro 43 front and rear for a durable yet playful Trail wheelset

reduced noise and system wear

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

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

which create a more efficient rolling contact patch through the center tread

Helix Core e*spec Steel E-MTB Chainring tool Run Flux Pro 43 frontHelix 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