interestingly the trains restraint seems to be based off the Family 335 Coaster models which has a height requirement of 0.95cm/37"
however, the ride specs are more similar to their space warp launch coaster, the restraint is more robust because of inversions but the height requirement is 1.2metres /47"
View attachment 15944
My understanding of this , the restraint detiremes the height requirement , I think it would be fair to say the minimum requirement probably wont exceed 1.2metres/47" as there are no inversions and even if they were using the over the shoulder/comfort collar the ride doesnt exceed their launch coaster specs