Reifen Schwalbe Marathon 32-630 / 27 x 1 1/4
http://www.zweirad-stadler.com/shop/schwalbe/schwalbe-trekking-reifen-marathon-hs-420-27-zoll-.html
.... below are the thick tyres (I assume).....
Original specifications 32-622 | 28 x 1 5/8 1 1/4 HS159
Tube: 32-622 | 28 x 1 5/8 1 1/4 | HS 159
