Peters Spares PS42 Replacement Lima L1-1505-00 Traction Tyres (Large Size) (Pk2) OO/HO Gauge We Have Found That These Fit Both The 14mm Diameter Wheels For Class 20 / Class 26 / Class 27 / Class 31 / Class 33 / Class 40 / Class 42 Warship / Class 52 Western / Class 86 / Class / Class 37 / Class 47 / Class 57 / Class 59 / Class 60 / Class 66 / Class 87 / Class 92 / Irish Class 201 / LMS Crab / GWR King / Supplied As Flat 'Washers', They Are Fitted To The Wheel And Then Folded Or 'Flipped' Flat Into The Groove Just Like The Originals.