Schwalbe rapid rob mtb tyre k guardtop choice for rookies the old racing ralph tread on a new mission rapid rob is an attractive option for beginners in the active line with 50 epi carcass and liteskin sidewall features etrto54 55957 559 size26 x 2126 x 225 compoundsbc treadpunture protection bar20 401 8 37 epi50 wire bead weight650g720gbuyschwalbe tyresfrom chain reaction cycles the worlds largest online bike store