I printed one of the numerous motorcycle funnels available out there, but unfortunately it didn't fit.
Instead of testing them all 1 by 1, I designed my own.
M20x2.5, 15mm deep, 80mm height, 67mm diameter
Various street triple parts on my Cults3d profil https://cults3d.com/en/design-collections/-Octa-/triumph-street-triple-675
Triumph_Street_Triple_675_-_Screw_On_Oil_Funnel.stl | 1.4MB |