# Intro to Yoyo Specs **URL:** \ **Category:** General Yo-Yo\ **Created:** [April 30, 2023, 4:46pm UTC](https://forums.yoyoexpert.com/t/intro-to-yoyo-specs/374596 "2023-04-30T16:46:36Z")\ **Posts on this page:** 3\ **Page:** 2
**Author:** ![hsb](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/hsb/32/193274_2.png) [@hsb](https://forums.yoyoexpert.com/u/hsb)\ **Post date:** [May 3, 2023, 4:29pm UTC](https://forums.yoyoexpert.com/t/intro-to-yoyo-specs/374596/21 "2023-05-03T16:29:57Z")
> [@Shwa](#): > > This is the sort of statement that I was trying to capture because I don’t think that its always true. Depending on the design, a 68g throw may move a lot quicker that something lighter. These hard and fast comments create a lot of debate in the community. Depending on what designs a player has experienced, their thought base changes. This has been my experience too. The 70g Spinworthy Steadfast does not strike me as a slow or heavy playing yoyo compared to some 65-68g yoyos, just for one example. Yoyo qualities may be defined by basic physical principles, but they combine them in complex ways. If someone could make a mathematical model of a given yoyo, adjusting its weight or dimensions would have predictable results. Comparing two _different_ yoyos based weight, size, etc. is a different story. I think that defining/understanding these terms is still very useful because it can help define why a specific yoyo has certain qualities. ---
**Author:** ![eap314](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/eap314/32/640207_2.png) [@eap314](https://forums.yoyoexpert.com/u/eap314)\ **Post date:** [June 20, 2023, 1:27am UTC](https://forums.yoyoexpert.com/t/intro-to-yoyo-specs/374596/22 "2023-06-20T01:27:10Z")
I agree that you shouldn’t get into feels and such, but you should probably state these, as they get asked a lot. Rim weight: more stability, longer spin Center weight: better regens Rim weight is defined by diameter (distance from axel) not width! Edit: axel ---
**Author:** ![GTDropKnot](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/gtdropknot/32/212400_2.png) [@GTDropKnot](https://forums.yoyoexpert.com/u/GTDropKnot)\ **Post date:** [June 20, 2023, 1:05pm UTC](https://forums.yoyoexpert.com/t/intro-to-yoyo-specs/374596/23 "2023-06-20T13:05:22Z")
Cool thanks I had some of that stuff and then removed it but I think you’re right and it will be helpful so I added it again [Previous page](https://forums.yoyoexpert.com/t/intro-to-yoyo-specs/374596.md?page=1)