Amazon.com : Continental MTB 650B (27.5 x 1.75-27.5 x 2.40) Presta - 42mm : Sports & Outdoors
Continental Cross King II Performance 27.5" Folding MTB Tire - Cambria Bike
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Continental Mtb Tire 26 27.5 29*2.0/2.2mm Race King Xc Racing Bicycle Tire Anti Puncture 180tpi Folding Tire Mountain Bike Tyre - Bicycle Tires - AliExpress