UDH is the big bike buzzword these days – with SRAM’s latest direct-mount Transmission derailleurs requiring it – but Sour thinks they’ve found a better way to future-proof their steel bikes.
On a mission to make affordable USA-made bikes, Stinner Frameworks announced ... the Refugio is an explorer's best friend. Room for up to 50mm tires lets you cram comfy rubber into the dropouts ...