OneUp Components is 10 years old today. The idea for our first product came about back in 2013 when Jon, one of our founders, broke his brand new, recently launched, SRAM XX1 derailleur. Replacements weren’t readily available, so he tried to make his old Shimano 10-speed cassette work for 1x. He designed and made a 42T sprocket to widen the range of the cassette. It actually rode way better than we expected. And that got us thinking.

OneUp was officially born on November 28, 2013, when we released our very first product: The 42T Expander Sprocket. It cost $100USD with free shipping worldwide and gave ten speed riders 90% of the benefit of 1×11 at 10% of the cost.

Our first customers bought an untested product from a completely unknown brand on a website that we built in a weekend. Unbelievably, our first production order sold out in less than 24 hrs. And, insanely, somehow we were now a mountain bike brand!

Everyone has to start somewhere and for us it all began with a big green cog. We’re now 10 years old and many things have changed. But we still make the components we want on our bikes and sell them at a price we’d pay with our own money.

“Thank you to anyone that’s ever ridden a OneUp Component. We’re still here today because of you.”

If you bought one of the first 42T Sprockets on November 28, 2013 please contact us at we have something for you! We’re working harder than ever to design the parts we want for our bikes. We’re excited to share more of them with you soon. Stay tuned!

OneUp Components
Established 2013


OneUp Components turns 10


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