E*thirteen Helix R Direct Mount Chainring for e*thirteen Cranks - Black Size:28T Rolling Efficiency : 1 2

Rolling Efficiency : 1 2 [3] 4

An ultra-light weight Enduro style jersey

Calorie consumption:0 ~99999 kcal

Flat Mount Disc

391 grams per pair

E*thirteen Helix R Direct Mount Chainring for e*thirteen Cranks - Black Size:28T Rolling Efficiency : 1 2Helix Race Chainring Direct Mount 28T 52 55mm Flip Flop Shimano SRAM 11 12s Chain Compatible Black Helix R Direct Mount Chainrings, manufactured from durable AL 7075 T6, combine aesthetics and design efficiency. Their flip flop design accommodates Boost or Super Boost chainlines. With e*thirteen's narrow wide tooth profile, they ensure enhanced chain retention, reduced wear, and compatibility with Shimano and SRAM chains. Perfectly complementing all