e*thirteen Helix Core e*spec Chainring SCV including Shimano® XTR® BB93

including Shimano® XTR® BB93

who when asked what kind of riding we do

Even on the hottest rides

racing and mixed conditions

Why Choose the Pirelli Cinturato Hard Terrain Gravel TLR Tyre - Black

e*thirteen Helix Core e*spec Chainring SCV including Shimano® XTR® BB93Helix 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. Features Long lasting and economical steel construction. M4 narrow wide tooth profile for excellent chain retention and Shimano SRAM drivetrain