Steel, The Mosaic Way

Mosaic RS-1d

You may know Mosaic as a boutique titanium framebuilder, but the Boulder-based company also happens to make really, really sweet steel frames for those who prefer that unmistakable ride of a well-crafted steel bike. Hello, Mosaic RS-1.

So what’s so special about the RS-1? First, the lead-time is six weeks. That’s ridiculously impressive considering each frame comes with rider specific geometry and matching Columbus Spirit HSS steel tubes for a tuned ride.

Mosaic RS-1

But the individualization obviously doesn’t stop there. Available in both caliper and disc brake variants, the RS-1 can be painted in your choices from Mosaic layouts and 45 stock colors, all done by their in-house paint shop Spectrum Paint & Powderworks.

Mosaic RS-1

In addition, each frame can be tailored for mechanical/ Di2/ EPS/ eTap shifting. Also included is a tapered Chris King DropSet Headset and a braze-one from derailleur mount. There’s even a choice of 68mm english-thread or a PF30 68mm bottom bracket to choose from. The seat post diameter is at a fixed 27.2mm.

Mosaic RS-1 ENVE Chris King

In addition, each frame can be tailored for mechanical/ Di2/ EPS/ eTap shifting. Also included is a tapered Chris King DropSet Headset and a braze-on front derailleur mount. There’s even a choice of 68mm english-thread or a PF30 68mm bottom bracket. The seat post diameter is at a fixed 27.2mm.

Mosaic RS-1

Other small details worth noting are star-shaped cable port/bottle boss reinforcements and an integrated derailleur hanger. 

Mosaic RS-1

For the caliper brake-equipped frames, the RS-1 will be spec’d with QR front and rear, 28mm tire clearance and an ENVE carbon road fork.

Mosaic RS-1d

Meanwhile, the disc-version, the RS-1d will come with front (142×12) and rear (100×12) thru-axles, flat-mount brakes front and rear, 30mm of tire clearance, and a carbon Columbus Futura Disc fork.

The RS-1/RS1d are available to order today for $6,000 per frameset. 

Mosaic RS-1

Billy’s Special

NAHBS Mosaic titanium custom bikes

In case you haven’t noticed from everyone’s NAHBS coverage, there was a lot of Mosaic at the show similar to the number of S-Works at your local crit. 

NAHBS Mosaic titanium custom bikes SRAM
One of the most talked about Mosaic with a red to silver fade at the SRAM booth

Seriously, there was enough to do a whole NAHBS gallery on just the Mosaics. I almost did.

NAHBS Mosaic RT-2 650b titanium custom bikes  Billy's special

There was one that didn’t get much buzz though. Our friend Billy got engaged this past fall and he commissioned a custom Mosaic as an engagement gift for his partner in crime, Beth.

It’s a custom RT2 650B built around a SRAM Force 1×11 drivetrain plus a heavy dosage of parts from Paul Component and White Industries throughout. As a matter of fact, Paul handmade a pair of titanium rings for the couple. There are also three bottle mounts for those long trips in the woods and since it’s a Mosaic, it has sweet black paint with pink trim  and a dash of glitter.

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An understated, yet extremely durable and U.S. made White Industries crankset

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Buttery smooth White Industries headset will last for years to come

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Paul Component Klamper mechanical disc brake for the braking moments

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Don't mind the dust on the frame, but this RT2 utilizes a full-length housing for its rear disc brake

How about that for an engagement gift?

NAHBS Mosaic RT-2 650b titanium custom bikes  Billy's special
B & B // B &B stands for Billy Beth Bed & Breakfast, a special ride conversation, aka long term imaginary retirement planning