DON'T HOLD BACK

The EOS series combines all our fastest technologies into a wheelset with one focus: uninhibited speed.

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All wheelsets ship in two weeks or less.

CUSTOMIZATION

Built by hand, made for you. Color options and upgrades available.

TECH

HUBS: THE CENTER POINT OF SPEED

Fast wheels spin on precision hubs.

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THE PRIMA LIFE

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Underbiking and Sloppy Steering - The Mystery of Tire Squirm and Rim Width

We‚Äôve reached the top of the climb - a rutted, rocky ‚Äúroad‚ÄĚ locally referred to in a tone of reverence and caution simply as ‚Äú143.‚ÄĚ We look down on the descent to come I can‚Äôt help but long for a mountain bike. ‚ÄúGravel‚ÄĚ riding in Southern Arizona...

The Venn of Cycling Pack Lists

by Rolf Prima professional triathlete, Amy VanTassel ‚ÄúDang! I have tons of pairs of long-finger gloves at home, and now I have to buy some.‚ÄĚ It‚Äôs rare to forget your bike, shoes, helmet, or phone, but doesn‚Äôt it seem inevitable that you‚Äôll...

How I Planned A Killer Season (and You Can Too)

 By, Pro Triathlete, Jackson Laundry. The 2021 Ironman 70.3 world championship in St. George will be my third crack at world's for the middle distance. I finished in the top 20 in 2017. That was a great result for me at that time. My 2019 World Championship ended with...

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SPEED THAT'S MADE IN THE USA.

Designed and engineered in Eugene, OR.

OUR HISTORY