Jamis DXT A2 Dual SportJamis DXT A2 Dual Sport Dual Sport Fitness Bicycle The dual sport DXTs are pumped up, go anywhere do anything versions of our Allegro fitness bikes. With more gearing range to take on steeper hills and tougher terrain. Wider tires with a trail capable tread for access to more riding areas, both paved and packed. And disc brakes and suspension forks for real off road exploration and off pavement adventure The Jamis DXT A2 Dual Sport is a hybrid bike