The ROS isthe first offering and the mainstay of Ultradynamico’s line. Double it up for optimal traction offroad or pair it witha CAVA in the rear todrift the corners a bit more.

–JFFmeans JustForFun, but not ONLY for fun- these tires are equally equipped for long days locked in the pain dungeon as they are for a Sunday tour of Portland’s vegan doughnut shoppes.

–JFFis our most accessible offering; think of it as the industry standard in terms of casing and rubber spec. This is approachable luxury- the cubic zirconia of our catalogue.

-Handles both pavement and dirt like a skilled musician handles aStradivarius

-Carbon compound for longer tread life on pavement

–JFFmore durable casing than our RACE offerings. Fixing flats, while character building, has never beenfun

-Zero sidewall protection and no puncture protection on top for premium terrain massaging ride quality

-Exotic file undertread revealed after ~1000k of use (unlike you, this tire gets faster with age)

-Tubeless compatible

-Continuous center tread for optimal propulsion

-Aeronauticallydesigned delta knob pattern for superior braking traction during gravel re-entry

-Tires packaged and sold individually

-650b x 47.99mm and 700c x42.??

-515g and 485g