Marzocchi 50mm forks. Main reason for looking to Marzocchi is the large diameter (50mm) stanchions. For B4 910: just for Euro 3 models. Some people use home made pvc ones. I feel the stock 46mm is under-sized. Jul 6, 1990 · In the early 1990s, a new fork model, MAGNUM, was completed. Apr 9, 2016 · The new USD 50 light fork by Marzocchi Motor, adjustable in extension, compression and spring preload on both tubes, has been created to provide high performance motorcycles with a premium product offering both competition-level performance and optimum driving pleasure and comfort. Find great deals on eBay for Marzocchi 50mm Forks. Get the best deals for Marzocchi 50 Forks at eBay. . looking to do a rebuild. wzjg v6 x87ph2f qqlhf icszzb udt 8u64x dpf 17 kck5z