Originally Posted by
Matt Trimmings
Maybe someone that has had a t4 and a t4.1 can verify the chassis. I know that the buggy plastic was a running change but I think enough time would have elapsed to get the older chassis out of stock and the newer ones to replace them.
I have both chassis. t4 has Molding hole t4.1 does not and the chassis has a different sheen to it. I did the chassis extension with the t4.1 chassis and used the t4 chassis for the reinforcement gussets, both chassis well used, not new by any means. I have raced my b4 now at 2 events and getting my setup closer. I like it alot and its more stable on large outdoor tracks here in Michigan.