b'Plastic Centred WheelsFlanged BearingsA= Rim DiameterB= Rim WidthC= Hub WidthD= Bearing I.DD A D AC CFor bearing/colour BEARING SERIES options, see page 47.B B4" RIM ASSEMBLED WITH TYRESIZE CODE TREAD PLY LOAD kg O.D mm S.W mm280/250-4 91172 W116 4 134 220 69Rim 4" Silver/Grey Nylon Graphite 300-4 91174 W108 4 132 248 73CODE 91170 25mm H/S Sealed BB 410/350-4 91176 W108 4 160 268 99A: 100mm B: 45mmC: 56mmD: 25mm 11x400-4 91178 W130 4 150 274 10720mm Ball Bearings. Add B to code.RIM ASSEMBLED WITH TYRE4" SIZE CODE TREAD PLY LOAD kg O.D mm S.W mm250-4 91191 W102 4 100 216 61280/250-4 91192 W116 4 134 220 69Rim 4" White offset hub300-4 91193 W108 4 132 248 73CODE 91190 " Flanged Bearing 410/350-4 91194 W108 4 160 268 99A: 100mm B: 68mmC: 71mmD: 19.05mm 11x400-4 91195 W130 4 150 274 107 910409106091080911209116092160280/250-4 300-4 410/350-4 11x400-4 911729117491178911769119291194280/250-4 300-4 11x400-4 410/350-4 300-4 410/350-4 0800 653 246 treadway.co.nz45'