Tamiya Onroad Spring chart and ratings

 A lot of people have been wondering what the Tamiya springs are rated at (Including myself), So here is a list that was made from Tamiya USA

It would be good to add some more of the classic springs to this list (The kit Silvers etc). As you can see though the more modern short 20mm springs (42306) are very soft. With only the Medium Black spring being that usable for indoor racing.. even then it's pretty soft.