Will fit a host of Ducatis (and other Italian applications). See here: https://catalog.mann-filter.com/EU/eng/catalog/MANN-FILTER Katalog Europa/Vehicles/MOTORCYCLES/DUCATI/900/ST4 (T34255)/Oil Filter/MW 713 £20 for the 3 delivered. These go for ~ £12 each and are the exact same spec as the OEM filters (including the bypass valve which opens at 0.9 bar) except they are made by Mann, unlike the OEM filters which are made by Fram for Ducati. PayPal friends / family payment or cash on collection accepted (N.Ireland).