Mosaic RS-1 55

$11,400.00 $7,199.00

MSRP Price Velo Price

In stock

Product Description

Mosaic Cycles is a family run handmade frame builder, based in Boulder, Colorado. The RS-1 is their flagship road frame and embodies the true quality of Mosaic’s builds; a high performing steel machine built efficiently to keep the weight low, using lightest ferrous tubesets available, TrueTemper S3.


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Weight 17 lbs
Dimensions 100 x 40 x 20 cm


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We bet you're curious

Steel is real.

Can we talk about how good this bike looks? We think it's the most beautiful bike in the world. From one of the lightest steel tubesets you can find, Mosaic in Boulder, CO pulled off a mini-masterpiece. It's light, stiff, and has that lively steel feel. The bike weighs in around 16 LBS which is lighter than most Dogma F10 builds.

Keeping It Classic

A classic looking steel frame? You kind of have to put Campagnolo on it. The tubular Bora wheelset was the big surprise with build. Don't let the rear unique spoke pattern concern you, we've found them to be stiff, light, and braking performance that is best-in-class for carbon.

Category Spec Condition
Build Year 2014
Frame Mosaic 54cm B+
Wheelset Campagnolo Bora One 35 with Vittoria Corsa SC Tubular 23" Tires B+
Crankset Campagnolo Record 53/39 B+
Bottom Bracket Campagnolo BB30 UT B+
Cockpit 3T Rotundo Team Handlebars with 3T Arx 120mm A
Hoods Campagnolo Record 11-spd B+
Front Derailleur Campagnolo Chorus 11-spd B+
Rear Derailleur Campagnolo Super Record 11-spd A
Cassette Campagnolo Chrous 11-spd 12-29 B
Brakes Campagnolo Super Record Dual Pivot B+
Saddle Fizik Antares 00 B
Headset Campagnolo B+
Fork ENVE Road 1.0 B
Seat Post Fizik Cyrano 00 A
Weight 6.99 KG, 15.4 LBS

When it will ship?

We ship within two business days. Most bikes arrive in a week.

Do I get a tracking number?

We use UPS and Fedex, which provide tracking.

What's the return policy?

We offer a 15-day return period. Learn more

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