Mosaic RT-1 54 Demo
Considered by many to be one of the finest American titanium framebuilders, Mosaic Cycle’s flagship road racer and crown jewel is modestly known as the RT-1. A raw assemblage of titanium, it’s where head welder Aaron Barcheck and company have pulled out all the stops from their hermitage in Boulder, Colorado. Designed for timeless durability in all conditions, the RT-1 is a perennial favorite at Above Category, and this demo RT-1 has seen few well-maintained miles in service during the 2016 season.
The RT-1 begins life as a 3/2.5 titanium tubeset, after which the front triangle is custom-butted by Mosaic for the rider – a step many other Ti builders don’t bother with (one of the only others is Baum). Why? Weight. And ride. Mated to an oversized 44mm headtube that an ENVE 2.0 fork slides into, the RT-1’s front-end can be built as stiff as even the most stout of carbon bikes. Just as well, the rear triangle of the RT-1 is rock-solid, with massive chainstays giving it an instant, drive-by-wire acceleration feel.
- Size: 54cm Stock
- Groupset: Campagnolo Record, 52/36 chainrings/172.5mm crank length, 12-29 Chorus cassette
- Wheels: Campagnolo Bora One 35, 25mm Zipp Tangente Tires
- Cockpit: fi'zi:k R1 seatpost, 100mm R1 stem, 42cm R1 bar, Antares R1 saddle
- Condition: Fully tuned and ready to ride. Small marks on non-driveside seattube near bottom bracket junction.
|Seat Tube C-T||Top Tube Effective||Seat Angle||Head Angle||Head Tube||Fork Rake||Chain Stay Length|