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Industrial-grade stainless steel disc
Dual scaled
Era is a chainring without compromise
committing to the rut in a muddy CX race
e*spec Steel Direct Mount Chainring 34T e*thirteen S3-bicycle repair set Industrial-grade stainless steel disce*thirteen e*spec Steel Direct Mount Chainring 34T Bosch CX Gen4 CL 53 55 via Spacer Black Helix Core e*spec Direct Mount Chainrings feature our narrow wide tooth profile, for reliable chain retention and an extra long wear life. Designed with an adjustable 13. 5 15. 5mm offset via spacer, they provide adaptability to both 53 and 55mm chainlines for Bosch CX and SX motor systems. Helix Core e*spec rings are cold formed from steel then heat treated to
