The 1×11 drivetrain has taken the mountain biking industry by storm. But performance comes at a price! The OneUp Components 42T sprocket lets you easily and inexpensively upgrade your existing 10 speed drivetrain. OneUp Components about their new products:

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At OneUp Components we believe that every rider should have access to the latest technology and that upgrading your mountain bike shouldn’t cost you an entire paycheck. We believe you should work less and ride more!

We’ve made it possible to widen the range of your existing 10 speed 11-36 cassette. No proprietary systems. No need to replace half the parts on your bike. Just the extra range needed to lighten and simplify your drive train.

Introducing the OneUp Components 42T sprocket

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CNC machined from hard wearing 7075 aluminum, this sprocket fits behind most 11-36 cassettes, displacing one sprocket from the main cluster. The resulting 11-42 adapted cassette gives you 90% of the benefit of 1×11 systems at 10% of the cost.

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The OneUp Components 42T sprocket plays nice with 2×10 and fatbikes too.

MSRP is $100 US and we will be shipping as early as mid January with free shipping worldwide. E-mail discount@oneupcomponents.com with Bike Rumour in the subject line for a $15 discount code that’s good until Dec 18/13. Visit our website to get yours on order today.

If you think we should all work less and ride more “Like” us on facebook and repost this article.

Still running 9 speed? Now that the industry has gone 1×11 crazy you can find 10 speed components heavily discounted. Look around and you should be able to upgrade to a wide range 1X10 drivetrain for as little as $250! (Includes OneUp 42T Sprocket + shifter, rear derailleur and chain)

Special – Email discount1@oneupcomponents.com with Enduro-MTB in the subject to receive the $15 discount.

Words & Photos: OneUp Components


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ENDURO is the leading magazine for mountain bike technology and the modern trail riding lifestyle. We cover high-end bikes, global trends, and technical innovations – in-depth, bold, and always with an eye on the bigger picture. Our editorial approach speaks to everyone who sees mountain biking not just as a sport, but as a way of life. We view bikes as more than just the sum of their parts, evaluating products through the lens of real world riding rather than just on the spec sheet, testing bikes everywhere from alpine adventures to intense bikepark laps.

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