Shocks
I bought a BMW 650 GS and plan to carry it on a hitch mount. I have a Dodge one ton extended Van. The bike weighs 390. I have a couple of carriers that should work but might need an extender for the b...
Forum Discussion
As JD stated shocks won't add any capacity to your rear to support 400 lbs. I would look at springs or air bags that can be adjusted for pressure to increase or decrease the spring rate when you are not carrying the 400 lb bike.
