Shimano Tiagra CN-4601 Chain drumbeat21-579 The SA-3 features three generous

The SA-3 features three generous waist-level pockets for gloves and larger tools

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- MIPS Spherical (MIPS SP)

- Highly absorbent microfiber wiping surface

Shimano Tiagra CN-4601 Chain drumbeat21-579 The SA-3 features three generousSuper Narrow Hyperglide (HG) series 10 speed compatible directional chain, recommended for Tiagra drivetrains Chain uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassette Outer plate design has been developed to reduce the chance of chain suck The inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling,