Need rear shock upgrade for hauling m/c around

Curious, what motorcycle?

I know the aftermarket battery suppliers offered heavier spec springs when adding more batteries. Plug-In Supply Do It Yourself (DIY) Plug-In Conversion Kits - Assembly and Installation Instructions | Prius Gen 3 Install

 

Stiffer springs on eBAY just for your needs

 

OP, not cool dude... you already have a thread here:

Carrying motorcycle on rear | PriusChat

Don't abandon the thread and start another just because everyone is telling you to put your MC on a trailer.

 

Put the cycle on a trailer...

 

Class 1 hitch has a tongue weight limit of 200 lbs. Your MC weighs about 250 lbs. according to Honda's specifications:

2013 CRF450R Overview - Honda Powersports

So basically you want to know how you can beef up your rear suspension to carry a load that exceeds the capacity of the Prius and your hitch? Oh, and you also want to drive this unsafe setup 80 mph? Sound about right?

Where to begin... not only is the hitch going to be overloaded, but even if you were to somehow mount some airbags in the springs to keep the overloaded rear-end from "dragging", you are still overloading the other load bearing suspension parts. Overloading could lead to failure, sometimes catastrophic, hopefully not while going 80 mph.

Also, the rear tires will act like a fulcrum between the heavy load at the back and the front wheels, which will have less weight on them. Front wheels are important on the Prius due to the fact that they not only prevent your front end from scraping the ground, but they are also used for propulsion and steering, something that is important when you're going 80 mph.



SCH-I535

 

OP is not making any sense in his last post.

 

He meant "trailer" when he posted trail, so he has a trailer but doesn't want to use it. For the stated reason.

SCH-I535

 

Larry, 50 lbs over limit on the hitch might not seem that big a deal to you, but factor in the weight of the carrier as well.

Then remember this is still only static weight. Also, from your reply in the other thread, you are using an adapter to use your carrier, designed for a 2 inch receiver, to fit into your class 1 hitch's 1.25 inch receiver. Once everything is set in motion, bouncing along the freeway at 80 mph, the dynamic forces on the hitch receiver and adapter becomes very much increased.

This is an accident waiting to happen. In today's litigious society it's all about CYA buddy. If your load breaks off and injures or kills someone, I'd bet the lawyers representing the victim's family would love the fact that you overloaded both the car and the hitch beyond stated capacities. You see, the manufacturers aren't stupid, they post the limits on their products to cover their a$$.

SCH-I535

 

I was really referring to doing 80 mph in HOV lane with an overweight bike on the back. Having lived in CA, I can see all kinds of problems occurring that would affect handling and stability, making his Prius unstable and unsafe.

 

jhinsc, sorry, yes I'm sure the OP could easily get cited for carrying an unsafe load.

And ITA about the unsafe setup affecting handling, steering, and braking. At any speed...

SCH-I535

 

give it a try! I would not sweat 150-200lbs and if you don't like it you can always resell the gear

 

Don't encourage him... He doesn't have a top notch superlight trials bike. Furthermore, even if he did, there is the weight of the carrier as well. That would easily add the 50+ lbs to exceed the capacity of the hitch. And, as pointed out, the use of the receiver adapter lowers the rating even more.

SCH-I535