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Amazon.com: TireTek Mountain Bike Presta Tire Pressure Gauge, 60 PSI w/Interchangeable Presta Valve & Schrader Valve Air, Easy to Read Glow Dial Bike Tire Gauge w/Storage Pouch for Any Mountain Bike Accessories :
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Ask Mountain Bike Action: What air pressure should I have in my tires? - Mountain Bike Action Magazine
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