Know the tire valves on your bike. Your wheel rims have holes to fit inner tubes with either Presa or Schrader valves. When using your pump, or buying replacement tubes, make sure it fits.
Frame Mini Pump a great little pump automatically fits both Presta and Schrader valve. Air is free and pumps are cheap. Always be prepared, carry a pump, a patch kit, spare innertube, and always, use a gauge to check your pressure.
Tire pressure makes a HUGE difference. Correctly inflated tires last longer, roll faster, corner and brake better, and ride more comfortably. Even 10 lbs. too little pressure can slow down, cause sloppy, even dangerous steering, improve your chance of damaging your rim. Larger diameter tires hold more air so they can be gentler to ride on. If you're over 150 lbs. , or want more cushion, look to wider tires.
Come in, look around, and
Ride with.....THE BIKE SHACK!
The only place for all your cycling and fitness needs!
Tires are critical. The air in them is your primary suspension and their construction determines your traction, cornering, and acceleration. A small investment in new tires can make your bike feel like new. 
