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Mosaic always impresses with impeccably built steel and titanium bikes. In recent years, we’ve seem some impressive 29ers, and their cyclocross bike won for best in category at the Denver, CO, NAHBS. Rather than rest on those laurels, they’ve tweaked and updated that frame to keep it current.

The XT1, which stands for ‘Cross Titanium 1, is the flagship model. In Mosaic parlance, a “1” refers to the top end tube spec with butted tubes, and a “2” means straight gauge tubes. For spec, The cyclocross bikes now get a thru axle ENVE CX fork, and they’ve switched to flat mount brakes in the rear. Fortunately, Shimano will sell them a mixed set until ENVE gets a flat mount CX fork.

More on this, plus their new gravel bikes and some prototype tires from Terravail and Clemente, below…

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Note the shapely tubes at the rear and the very smooth brake hose entry port on the down tube. The drastic entry angle makes for a much more streamlined appearance.

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This one’s owner/builder Aaron Barcheck’s bike, built 1x with XTR rear Di2 and display plugged into road shifters. He has controls set up with left side as down only, right is up and down.

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The direct mount rear derailleur was done with a fixed titanium section covered by a secondary hanger that’s black anodized. They’re shaped in a perfect match, making them look like one piece at first glance. It’s these little Easter eggs that really define the best builders and make our search more rewarding.

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The GT1 (Gravel Titanium) gets a little different geometry than the ‘cross bike. For example, the BB is lower, with 70-75mm drop compared to 60mm. Tubes are a little more compliant, too, since it’s more for long rides than shorter races.

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T47 BB option is now available.

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There’s 38mm tire clearance between the stays.

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Flat mount and thru axles on both ends with ENVE’s GRD fork. A full custom build starts at $5,600 with fork and Chris King headset.

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This bike was sporting Clement Strada USH tubeless ready tires. They hinted at these at Interbike last year, and Mosaic was one of the first to get their hands on a set.

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They’ll also offer it in steel with the GS1, which was also fitted with new rubber.

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Apparently it’s hard to make a gumwall tire tubeless ready, but that’s what Teravail is working on with this Dirty Kanza edition of the Cannonball gravel tire.

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Several builders had “eTap” versions of their bikes, meaning they were built specifically for SRAM’s new wireless group and had no holes or stops for any wires or cables. Above and below is the Mosaic RS1 eTap (Road Steel 1).

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They also make a titanium RT1, which was on display across the hall at SRAM’s booth as a showcase for their new halo group.

MosaicCycles.com

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