I like them on my B-Max2, afaik they are manufactured for Yokomo by the same company as Kyosho and Avid RC springs. 4WD kit oranges and greens seem to work about everywhere. I tried the BB shocks on my son's standard B-Max4II once with oranges in the front, blues in the rear and the B-Max4II W 6-hole piston set-up, and they were brilliant. At that meeting in Duisburg, he achieved his best result so far.
