Kore Mega Range Expander Sprocket Shimano

The MegaRange cassette sprocket is designed to be coupled with the KORE Stronghold narrow/wide chainring so you can simply change your 2x10 set up into a 1x10 set up at a super economical price.

Efficient Drivetrain

This set up gives you a wide 1x10 gear ratio but eliminates the need for a front derailleur, front shifter, cable and inner chain ring thus making a substantial weight saving to your bike and at a fraction of the cost of a 1x11 set up.

About Cassettes & Freewheels

Cassettes and freewheels for bikes are a cluster of sprockets in a range of sizes offering a multitude of gear ratios. The difference between the two is, a cassette slots onto the freehub, which has the ratchet built in and is then secured with a lockring, whereas a freewheel is a cluster of sprockets built around a ratchet and threads directly on to the hub. Cassettes and freewheels come in many ratios, close ratio is when the number of teeth increase in small increments of 1 or 2 at a time, whereas a wide ratio is when the teeth increase in larger increments of 3 or 4 at a time. Most systems will use a cassette hub as these allow for a wider bearing spacing and increased axle life, you can also fit a larger quantity of sprockets onto a cassette hub with 11 speed systems now becoming available. With cassettes you must use the appropriate spacing for your gear levers and rear mech, Shimano and Campagnolo are not interchangeable so you will need to match the cassette to your levers for smooth and precise shifting. Sram and Shimano chains and cassettes will work together as they use the same spacing.

About the Kore brand

Kona's foray into the bicycle industry began in the early nineties as a manufacturer of lightweight seatposts. They eventually took over the marketing of these posts and opened an office for Kore in `93. Their offerings grew to include the first suspension oriented lightweight skewers and a lightweight stem (now known as the Lite stem). By `95 their offerings had grown to include two product levels; the Elite, their American made products, and the Lite, an assortment of components made in Taiwan. Though Kore officially began in `93, their roots reach back to the introduction of the Thrashguard in `90. This removable bolt on bashguard paved the way for many of today's “Street” frames. Since then, they've continued to make advancements in the “Street” and “Flatland” scenes and have since added a few main stream products to our BMX line.