Vee Tire Galaxy 27.5x2.1 Folded Tire Dual Control CompoundThe Vee Tire 27.5 x 2.1 Galaxy is a mountain bike tire with speed and grip in mind, providing excellent cornering capabilities, stopping power, and easy acceleration on any surface. This model includes the Dual Control Compound, which is two kinds of materials to help with speed and general control, creating a hardness of 56A in the center and 48A on the sides. Another feature is the “B-Proof” technology, making the tires much less susceptible to becoming flat. Weight is 585 grams.848712032908