Top quality Vespa flyside high load, reinforced Japanese bearing from SIP Dimensions. 25x38x15. Made from carbon chrome, these are from the SIP premium range bearings and fits practically all geared Vespas, see below.
 
125 GTR 2°, TS 2°, 150 Sprint V 2°, Super 2°, 200 Rally 2°, PK125 S 2°, ETS, N, XL, XL2
PE 125, 150 & 200, Lusso
Cosa