E*Thirteen Extended Range Cog 42T Shimano 36T Compatible, Black

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Each item has been professionally inspected, thoroughly cleaned, carefully refurbished, and is ready for immediate use.

E*Thirteen Extended Range Cog 42T Shimano 36T Compatible, Black

Riders facing steep climbs or mix-terrain sessions often struggle to find a comfortable gear rhythm. The 42T extended-range cog expands your gearing options, letting you climb tougher grades without a cumbersome drivetrain change. Built for Shimano 10-speed systems and crafted from durable aluminum, it delivers reliable shifts with less effort on long rides. From gravel to mountain trails, this cog is designed to keep you in the right gear when it matters most, so you can ride farther with confidence.

Who is this for?

Ideal for riders upgrading an existing 10-speed setup who want more climbing capability without swapping the entire cassette. Perfect for gravel grinders, mixed-terrain explorers, and endurance riders seeking versatile gearing and dependable performance on long days in the saddle.

Each item is professionally packed and shipped next day. Select in-store pick-up at checkout and visit us if you are local!