I am trying to buy a discus that will help me this season. I don’t want to spend a lot of money, yet if it is good I will. If you need more info just ask…
it all depends on how far you can throw the discus and how good your release is on the discus. dont go out and buy anything over 150 because those are just flashy discus’ you can find one that works great for you for around 50 dollars. go to amazon.com and search there. if you throw under 100 get a rim weight of about 75% if you throw between 100-120 get from 75-85% and if you throw over 120 get anywhere from 85-92%. it all depends though. if you have a favorite discus ask your coach what rim weight the discus is because it really depends on your release on the discus and how good your trigger fingers are 
and remember you make the discus the discus does not define how good of thrower you are.
it all depends on how far you can throw the discus and how good your release is on the discus. dont go out and buy anything over 150 because those are just flashy discus’ you can find one that works great for you for around 50 dollars. go to amazon.com and search there. if you throw under 100 get a rim weight of about 75% if you throw between 100-120 get from 75-85% and if you throw over 120 get anywhere from 85-92%. it all depends though. if you have a favorite discus ask your coach what rim weight the discus is because it really depends on your release on the discus and how good your trigger fingers are
and remember you make the discus the discus does not define how good of thrower you are.
References :