No suspension is going to last 100k miles...more like 50k on the rear shock and the front fork slide bushing wear thru the teflon coating as little as 15k miles..I persnally have seen the telflon on the slide bushing wore thru at 3500 miles on a cruiser I worked on...never the less. Traxxon recommends fork service every 20k miles...this 2018 plus model only has shocks though and judging by my Traxxion shock on my old wing, 50k miles between shock rebuilds is more realistic if you want your bike to be the best it can beI've been replacing worn out stock suspension components on my motorcycles for decades, I ride more than most, 80-100,000 kms/yr and for the last dozen or so motorcycles the stock suspension lasts only 30-50k. I go with aftermarket to save money with the added benefit of much better performance. For example, my previous touring bike was a Vulcan Voyager that I rode 680,000 kms in 8 years, I let Kawasaki replace the worn suspension a couple times within warranty and then I went aftermarket, Works Performance shocks were less than half the price of OEM and RaceTech forks also less money. Custom build to my weights and riding requirements and it rides and handles much better than generic OEM. After the initial expense I then had components that were rebuildable at 1/10 the cost of OEM replacements and I found aftermarket shocks last twice the distance before rebuild/replacement is required.
My Goldwing now has 48k and the stock suspension feels very tired, easily bottoms out and getting more wallowing through bumpy curves. My other bike, a Super Tenere with 180k but equipped with Hyperpro rides and handles better than my GL so it's time to replace the worn parts. OEM Goldwing shocks are $3750 in Canada, not rebuildable and will likely be toast in another 50k. The Wilbers package I have on order is less money, custom built for me, likely last 100k and can be rebuilt for $150 each. I am anticipating much better performance as a side benefit to the cost savings.