

A bolt-on upgrade for your Shimano cassette.
The Funn Slingshot Extension Cog allows you to expand your 11 speed Shimano 11T-42T cassette for an extra helping hand on those big climbs.
The kit comes with 18 and 50T cogs to convert your cassette, allowing you to drop a 50T in place of your existing 42T cog.
It’s ideal for 1X conversions.
We’ve been in business since 1997 and have spent the last 20 years helping riders to have more fun on their bikes.
Whether you’re a world class racer or a weekend warrior, it’s our mission to give you the very best components at the very best prices.
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