Sports Outdoors Lezyne Pressure Drive gets bikers pumped up Sun., Nov. 27, 2016 The Lezyne Pressure Drive weighs about 3.5 ounces. (Courtesy photo) Twitter Email Reddit SMS Stephen Regenold,Special to Outdoors Air in the tires keeps you rolling down the road. But how it gets there, and how fast you can fix a flat, is a key concern for riders on pavement or trail. Click here for the complete story.