Tern Bicycles on Twitter: "A friendly reminder for those living in cold and snowy places: the Schwalbe Marathon Winter Plus 55-406 (20 X 2.15) fits the GSD and the Vektron! #terngsd #ternvektron #
Spiked tyres for cycling on ice! First ride on the Schwalbe Marathon Winter Plus tyres. - YouTube
Schwalbe Marathon Winter Plus Tire: 26 x 2.00", Wire Bead, Performance – Bicycle Outfitters Indy