I've got a 1971 VW Bug with a 72v system from Wilderness EV. All is well electrically but it suddenly started bucking violently on hard throttle (which is a relative term for this slug). It seems to happen in any gear by 1st and I'd describe it as what happens when you let the clutch out too quickly. But there is no clutch! All the Beetle forum ideas talk about adjustments to the clutch cable.
I have replaced a clutch on a regular IC car and know how it works, but I don't get what's going on with the EV where I just let off the throttle and shift. Any advice would be appreicated.