If it fits , why not but…. if its too long, you will bent it eventually , also the swingarm has a very narrow space to work with , so if the springs are fat, it will hit the swingarm 100%
As found out by another member on a GT650R , was having suspension issuesĀ because someone else fitted a 250R shock! – So he got a 650R shock for his 650 and all was better and solved
Also you may run in to the issue that theĀ “Y” bone under the swingarm will 100% hit the frame if the shock is too long and it may not slot the boltĀ (too long/too far out)
You will be wise to measure your old shock firstĀ Ā (bolt hole to bolt hole)Ā Ā and dimensions of the fittingsĀ etc to try make sure you get another 1-to-1 copy (or close to it) ,Ā also hyosung is a nearly 200 wet kg bike (especially the GTR) ,Ā you want the shock to handle it.