Lots of people have been questioning what the Tamiya springs are rated at (Including myself), So here’s a listing that was created from Tamiya USA
It could be good so as to add some extra of the basic springs to this listing (The package Silvers and so on). As you possibly can see although the extra fashionable brief 20mm springs (42306) are very tender. With solely the Medium Black spring being that usable for indoor racing.. even then it is fairly tender.