Cannondale Bicycles manual Tire Valves, Schraeder Valve

Page 67

fig. 21A Schraeder Valve

Some special high-performance tires have unidirectional treads: their tread pattern is designed to work better in one direction than in the other. The sidewall marking of a unidirectional tire will have an arrow showing the cor- rect rotation direction. If your bike has unidirectional tires, be sure that they are mounted to rotate in the correct direction.

2. Tire Valves

The tire valve allows air to enter the tire's inner tube under pressure, but doesn't let it back out unless you want it to.

There are primarily two kinds of bicycle tube valves (actually, there are other designs, but they are seldom seen in the US any more): The Schraeder Valve and the Presta Valve. The bicycle pump you use must have the fitting appro- priate to the valve stems on your bicycle.

The Schraeder (Fig. 21a) is like the valve on a car tire. To inflate a Schraeder valve tube, remove the valve cap and push the air hose or pump fitting onto the end of the valve stem. To let air out of a Schraeder valve, depress the pin in the end of the valve stem with the end of a key or other appropriate object.

63

Image 67

Contents Cannondale For MULTI-SPEED Bicycles Contents Complete your Cannondale Warranty Registration Card Cannondale Thank YOU for Purchasing a Cannondale Your Local Authorized Cannondale Retailer Repair and MaintenanceAbout this Manual WHY YOU should Read this ManualSpecial Note for Parents When all else fails . . . it’s too late to read the manualWhat IT’S Called Adjusting barrel Reflectors What Kind of a Bike is IT? Mountain Bike Cross Bike FIT FIT and SafetyPage Close Open Standard Binder QR Binder Min insert Mark Page To do this yourself, as it requires special knowledge Min insert mark Stem binder Handlebar binder May result in serious injury or death Wearing a Helmet Safety EquipmentPage Page Mechanical Safety Check Page Page OK now buckle on your helmet and enjoy your ride Basics Rules of the Road Page Page Rules of the Trail Downhill Mountain Biking Page Night Riding WET Weather RidingSerious injury or death When riding at dusk or at night Wheel Quick Release HOW Things WorkQuick Release Cam Open position Adjusting the quick release mechanism see , opposite Removing a Quick Release Front Wheel Your bikeQR Closed Position Open Installing a Quick Release Front WheelPage Removing a Quick Release Rear Wheel Installing a Quick Release Rear WheelWheel in Rear Dropouts Removing a Bolt-On Front Wheel Push the rear derailleur back into positionRemoving a Bolt-On Rear Wheel Installing a Bolt-On Front WheelInstalling a Bolt-On Rear Wheel Seatpost Quick Release Adjusting the quick release mechanismPage How brakes work BrakesOpen Push Page Adjusting your brakes Shifting Why all those gears?Shifting Gears Shifting a derailleur drivetrainI f t W n s h i f t S h i f t Shifting the Rear Derailleur Which gear should I be in? Shifting the Front DerailleurShifting internal gear hub gears Shifting an internal gear hub drivetrainToeclips & Straps Clipless STEP-IN Pedals Tires Tires and TubesPage Page Schraeder Valve Tire ValvesBicycle Suspension Page Page Service and Maintenance Service & Maintenance Schedule About 10 to 15 hours of on-road or more casual off-road use Page As required Page Getting Home When Something Breaks Cut from pinching the inner tube If you break a spoke If your bicycle sustains an impact Seek medical help if necessary Upgrading Your Bike and Your Equipment Comfort and Convenience AccessoriesPage Ity and resolve compatibility conflicts Page Page Adealerbout Your CANNONDALE-SPECIFIC Information Periodically Checked by AN Authorized Cannondale Retailer Fig. a Downhill riding When Riding with Children Mountain Bike Usage Page Page Other Proper USE of Bicycle Repair Stands PRE-RIDE Checklist Become entangled in the bicycle TOE Clip Overlap Reading Warranties Terms of Warranty 100 Authorized European Distributors 101Authorized International Distributors 102103 104 Your Purchase Record PRE-RIDE Checklist