This is not really from me, it is from Gary Patton, but I have confirmed that this is a correct bearing to use when putting a Paso, 750 Sport, and/or a few other odd triple clamps that have 25mm stems (at the bearings inner) in a Pantah/TT/F1 frame. It is Timken 30205M 9/KM1. There are some similar (older) numbers for the last five figures, but it is the 30205M that matters; it has a 52mm race OD and a 25mm bearing ID. MikeV