I replaced the factory springs in a '97 Triumph Thunderbird 900 with them. Compared to the factory ones, a colossal difference - a longer spring (there was a spacer added to the factory one), stiffer, slightly thicker wire. Now only to test on the road.
Great springs. I have already put on several motorcycles XJ 900, VFR 800, Vstrom 1000 and in each case they improved handling noticeably. The hinge does not hit when braking. I recommend