The R-Series is how Mosaic does road. Nothing rides quite like a bespoke titanium road bike, and our R-Series models offer that sublime feel along with a level of performance rivaling anything else out there.

Light, lively and durable, these bikes have never been better, thanks to the latest component standards that allow us to roll wider, faster and more compliant tires. The flagship RT-1iTR—integrated thick road—fits up to 700x35c’s, making it capable of anything ranging from all-day roadie rides and your Tuesday night crit series, to those rough roads that are no fun on a lesser bike and even mixed surfaces, dirt and gravel.

Standard RT models are nearly as versatile with tires topping out at 700x30c, and we even have options for those who prefer rim brakes. Every R-Series frame is purpose-built for titanium tarmac prowess. Race-ready in rider-matched, superlight butted thinwall tubing at the RT-1 level or no-nonsense straight gauge titanium tubing at the batch-built RT-2 level, our R-Series bikes are precision crafted for responsiveness, durability and lively feel, whatever the configuration.