Though GT officially uses the name Speed Metal Ultra for the material that the Zaskar 27. 5 LE Expert Complete Mountain Bike's frame is made from, the phrase speed metal is also appropriate when applied to the bike's ride. The durable, lightweight, and most importantly stiff alloy material ensures that every possible watt is transferred from the pedals, through the hardtail rear triangle, and into the trail. This obsessive pursuit of speed would make for a harsh ride in traditional frames, but GT's Triple Triangle design lengthens the chainstays, making for two connection points that avoid the seat tube juncture and diffuse trail chatter through the frame instead of straight up the seatpost. The result is an XC beast whose durability recommends it for abuse that goes beyond singletrack to tempt the enduro crusader in all of us.