No matter how well your machine is maintained, the Fork Seals have a finite life span, if they do not suffer physical damage then temperature extremes and UV exposure will cause it to degrade.
This top quality OE item is perfect in all respects.
To access the list of all the parts required to complete your front forks rejuvenation project, take a look at the online schematic for your model - order all the parts required in one hit and save money on shipping costs! CMS - the choice of enthusiasts when purchasing high quality motorcycle spares.