CIRCA Cycles

CIRCA Cycles

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Premium custom aluminum bikes, hand-built in Portland, Oregon. CIRCA precision-builds distinctive, versatile, locally-made bikes for everyday riders.

Our innovative design and construction process is inspired by the obsessive detail of Apple and the versatility of Swatch, hyper-localized to Portland, Oregon's manufacturing ecosystem. Message us to learn more or to schedule a visit to our downtown Portland showroom.

09/01/2025

Now that the dust has settled from the MADE show, I finally took my first trip on Acid and it did not disappoint! The i9 Solis UL250 wheels were so snappy with a crazy sinister tone from the freehub. Those colors! Yeah!

Photos from CIRCA Cycles's post 08/24/2025

Come see the Acid AllRoad build at the .bike show this weekend at Zidell Yards in Portland! The bike will be featured in the Industry Nine booth (booth 142) and is rolling on a gorgeous, featherweight custom set of i9 Solix G UL250a wheels with asymmetric hub colors.


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Photos from CIRCA Cycles's post 08/22/2025

Come see the Acid AllRoad build at the .bike show this weekend at Zidell Yards in Portland! The bike will be featured in the Industry Nine booth (booth 142) and is rolling on a gorgeous, featherweight custom set of i9 Solix G UL250a wheels with asymmetric hub colors.

07/20/2025

Acid AllRoad Drip. Drip. Drip. Anodized by for mind-expansion. Couldn’t resist going with the iridescent finish Big Bore valves from Muc-off.

Photos from CIRCA Cycles's post 07/18/2025

Acid AllRoad Drip. Drip. Drip. Anodized for mind-expansion. We went with a custom set of i9 Solix G UL250a wheels with asymmetric hub colors for balance. Super-light alloy wheelset coming in at 1410g for the 700c.

07/16/2025

Acid AllRoad Drip. Drip. Drip. Anodized for mind-expansion.

07/09/2025

What happens when we do a collaboration with one of the country's best art anodizers? The Acid AllRoad! We've been keeping the finished bike under wraps for a bit, but it's time to start dripping some pics. Stay tuned for more!

Photos from CIRCA Cycles's post 03/06/2025

New custom bike build shipping to the east coast this week. 1x city and path runner with custom laser art work (done by the client!) and clear anodizing on the lugs.

Photos from CIRCA Cycles's post 02/07/2025

New frame and bike build coming together featuring some anarcho-machine custom laser art on the top tube. More to follow. We’re waiting on a few components to land before we can get things wrapped up.

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PO Box 12552
Portland, OR
97212