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We've added our own captive nut Schrader Valve and Custom metal dust cap (Cos Metal dust caps look neat)
Dukes Dispatcher innertubes are for the high milers
we think this is our most robust tyre yet
we may never ever get these again so ride with confidence and pace on one of the best Fat Tyres ever produced
Dukes C-FS 20 x 4" Fat Tyre Bike Innertube Tyre We've added our own captiveDukes C FS Innertubes are our own in house design. Manufactured by our partner factory to the high standards and demands of riders in the UK. Listening to customer feedback and our own team of test riders, we picked firmer and thicker grade of rubber to increase puncture resistance whilst still allowing for a quality ride. We reckon our tubes are amongst the best on the market and our current test riders have done hundreds of miles this year with