Go Back   Thor Forums > Thor Tech Forums > Modifications and Updates
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 12-11-2017, 06:46 PM   #81
Senior Member
 
Brand: Still Looking
State: Texas
Posts: 4,698
THOR #2121
Quote:
Originally Posted by Metalman View Post
I would like to see a side view of that set up and speak to the owner of the RV. The lift and/or carrier will add considerable weight, so an 800 pound motorcycle and carrier might be adding 1000 pounds to the back of the vehicle. But the photo proves that it can be done.

Metalman, I'm not sure the photos prove much of anything (at least to me), other than that the motorhomes can support the weight of the motorcycle while parked.

They certainly don't prove these setups are safe, or that it should be done at all. They don't prove the motorhomes are stable with all the rear weight bias, or that the rear axles aren't over the limit. Or that front wheels don't get too light for steering.

In case it wasn't clear, I was mostly joking with Jamie, and was being sarcastic. Short of having a mechanical engineering degree and a lot of experience, I would not suggest trying anything like these on a DIY basis.

Can it be done safely in some cases? Probably under certain conditions. I don't think it takes a diesel pusher. In fact, not having a 2,000-pound engine hanging off the very back of the unit should help.

By the way, I saw one video with a lift that showed a good side view with motorcycle way behind bumper.
__________________

__________________
Chance is offline   Reply With Quote
Old 12-11-2017, 07:05 PM   #82
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,267
THOR #8860
Quote:
Originally Posted by woody View Post
Hi Mike, will do. Production was pushed back a bit as it will be a brand new design and they were still making improvements to the prototype. It's supposed to be delivered at the end of January. I will post pics when I get it.
When I spoke with them: they were just getting ready to move into the new production facility.
You're gonna love it!
Take some pictures for us!
__________________

__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Old 12-11-2017, 07:17 PM   #83
Senior Member
 
Brand: Still Looking
State: Texas
Posts: 4,698
THOR #2121
Quote:
Originally Posted by JamieGeek View Post
Those are a bit different as they don't have the lift piece and clearly don't lift the motorcycle as high up either.
No doubt keeping the total weight and height low will help. Having said that, the biggest problem to overcome are weight distribution, and bending stresses on the frame. This last part gets unmanageable when the motorhome already has a long rear frame extension.

For example, while my van is much smaller than the two Coachmen in the pictures above, the rear orverhang is much shorter, which helps a lot. Adding a 1,000-pound load behind my rear bumper will only unload front wheels by 500 pounds, so rear axle will see an extra load of 1,500 pounds. In my case that's well within axle and tire load ratings.

I'd expect that in most Class Cs adding a 1,000-pound load (motorcycle plus carrier) behind bumper would overload rear axle and/or tires. I'd also expect frame rails could get stressed too high because of the long moment arm. Handling would likely be unacceptable also. These things can't be seen on a picture of a parked motorhome.
__________________
Chance is offline   Reply With Quote
Old 12-11-2017, 07:49 PM   #84
Member
 
woody's Avatar
 
Brand: Thor Motor Coach
Model: Ace evo 30.1
State: Massachusetts
Posts: 70
THOR #2698
Quote:
Originally Posted by Bob Denman View Post
When I spoke with them: they were just getting ready to move into the new production facility.
You're gonna love it!
Take some pictures for us!
Will do. I made a mistake when we bought an Ultimate open trailer. The nice feature about the Ultimate trailer was that it could completely lower to the ground which made driving the bikes onto it very easy. The down side however was when it raised itself back up it was only about 6 to 7 inches off the ground. When being towed behind our 31 foot Ace it tended to bottom out a lot when negotiating unequal heights of certain roads and parking lots.
__________________
Woody
Mass State Police (Ret)
Dudley,MA
2016 Thor Ace 30.1
woody is offline   Reply With Quote
Old 12-11-2017, 07:53 PM   #85
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,267
THOR #8860
You're the first person I've heard mentioning the bottoming-out issue...

But they DO ride low!

I suppose that it's due to the amount of lift that they can actually get with their setup...
__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Old 12-11-2017, 07:59 PM   #86
Senior Member
 
Brand: Still Looking
State: Texas
Posts: 4,698
THOR #2121
Metalman, here is motorcycle lift video I was thinking of. Notice how far back the bike rides behind the relatively small motorhome. May be a trailer, can't tell.

__________________
Chance is offline   Reply With Quote
Old 12-11-2017, 10:00 PM   #87
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,267
THOR #8860
...And there was nothing to keep those pins in place?!?
(Other than the weight of the bike on them...)
A couple of fifty-cent snap-rings would seem like a reasonable expense!
__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Old 12-11-2017, 11:19 PM   #88
Senior Member
 
Brand: Thor Motor Coach
Model: Windsport 27K
State: Kentucky
Posts: 740
THOR #2817
Quote:
Originally Posted by Bob Denman View Post
...And there was nothing to keep those pins in place?!?
(Other than the weight of the bike on them...)
A couple of fifty-cent snap-rings would seem like a reasonable expense!
I would feel better with lock pin on each side. I suspect that in certain circumstances the bike could unload its weight from the lift and if a pin falls out...catastrophy.
__________________
Metalman is offline   Reply With Quote
Old 12-11-2017, 11:31 PM   #89
Member
 
woody's Avatar
 
Brand: Thor Motor Coach
Model: Ace evo 30.1
State: Massachusetts
Posts: 70
THOR #2698
Quote:
Originally Posted by Bob Denman View Post
You're the first person I've heard mentioning the bottoming-out issue...

But they DO ride low!

I suppose that it's due to the amount of lift that they can actually get with their setup...
I don't think it would be as much of an issue if it was towed behind a PU or SUV but coupled with the long length of a RV it was definitely a problem. In fact the trailer support wheel, despite being cranked up all the way, bottomed out so many times it finally shattered.
__________________
Woody
Mass State Police (Ret)
Dudley,MA
2016 Thor Ace 30.1
woody is offline   Reply With Quote
Old 12-11-2017, 11:34 PM   #90
Axis/Vegas Enthusiast
 
JamieGeek's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.1
State: Michigan
Posts: 8,965
THOR #1150
Here is a custom made one on a Sightseer RV (F-53) chassis. Watch at the very beginning how the rear of the motorhome drops as it lifts the bike:

(I'd also guess that the BMW bike he is lifting is a bit lighter than something like a Harley or a Goldwing.)
__________________
2014 Thor Axis 24.1
2018 Chevy Bolt
blog - https://spareelectrons.wordpress.com/
JamieGeek is online now   Reply With Quote
Old 12-13-2017, 06:59 PM   #91
Member
 
Brand: Thor Motor Coach
State: New Jersey
Posts: 99
THOR #8931
Quote:
Originally Posted by Chance View Post
Just saying an F-53 Ford chassis could easily handle the weight of a heavy motorcycle if motorhome is designed for it -- without the need for much more expensive diesel pusher. GVWR range of 16,000 to 26,000 pounds leaves a lot of room to work with for extra cargo (and 800 pounds isn't that much for a truck frame).

Also, a garage limited to size of a motorcycle would not affect floorplan nearly as much as a typical toy hauler does. Nor would it add as much weight. If there was more demand maybe manufacturers would build more motorcycle-specific RVs.


By the way, Google it and see a few RVers hanging large Harleys off the back of small Class Cs.
I have a 2018, 37rb. The garage has a 2500 pound capacity. It is 10 ft long by 8 ft wide. I can put a small car in there under 2500 pounds. It handles my ultra limited easily on one side of the garage. I have a chpck in there and only need two straps in the back
__________________
Hoser123 is offline   Reply With Quote
Old 12-13-2017, 07:02 PM   #92
Member
 
Brand: Thor Motor Coach
State: New Jersey
Posts: 99
THOR #8931
Quote:
Originally Posted by Chance View Post
The 102" width limit doesn't include mirrors, so wide-body motorhomes have been in that range for years. I honestly don't know whether awning is included. If we allow for doors on either side of garage, it couldn't be more than about 100". Your idea of loading bike at angle could help.

Another option would be to have a longer longitudinal but narrow garage on one side of RV. If it were 4-ft wide, the area next to it could be incorporated into living area; perhaps a bathroom behind bedroom. There was an aero toy hauler trailer I saw at RV shows a few times (can't recall name/brand) that was like that. The door was roughly half the with of trailer, meant for motorcycles, ATVs, etc. A similar concept could work for a motorhome without giving up so much living space.

I do like small enclosed garages so toys don't get left out where people can see and get to them.
I have a class a toy hauler The Outlaw. My garage inside is 8 feet wide. It will not fit in my ultra limited sideways which is just over 8 feet long. However it will hold two Harleys, side by side
__________________
Hoser123 is offline   Reply With Quote
Old 12-13-2017, 07:27 PM   #93
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,267
THOR #8860
Quote:
Originally Posted by Hoser123 View Post
I have a 2018, 37rb. The garage has a 2500 pound capacity. It is 10 ft long by 8 ft wide. I can put a small car in there under 2500 pounds. It handles my ultra limited easily on one side of the garage. I have a chpck in there and only need two straps in the back
How about a picture of that garage earning it's keep?

(The garage is my Class C Outlaw is 8x9... )
__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Old 12-13-2017, 07:59 PM   #94
Member
 
Brand: Thor Motor Coach
State: New Jersey
Posts: 99
THOR #8931
The file is too big. The RV is in storage. I'll have to get a picture of it later and resend it sorry
__________________
Hoser123 is offline   Reply With Quote
Old 12-13-2017, 08:51 PM   #95
Senior Member
 
Brand: Still Looking
State: Texas
Posts: 4,698
THOR #2121
Quote:
Originally Posted by Hoser123 View Post
I have a 2018, 37rb. The garage has a 2500 pound capacity. It is 10 ft long by 8 ft wide. I can put a small car in there under 2500 pounds. It handles my ultra limited easily on one side of the garage. I have a chpck in there and only need two straps in the back
Thank you.

My point was that it shouldn't necessarily take a diesel pusher to haul a Harley off the back bumper "IF" gasser is designed correctly. Your toy hauler, while a little different situation, proves it can be done. Simple math (OK, maybe not so simple) indicates that chassis rails on the F-53 can handle quite a bit of bending load.

Another example of what can be done when designed properly are wheel-lift wreckers that can lift the front end of cars well behind a Ford F-550 truck's rear axle. These frames are similar to the F-53 motorhome chassis, yet are lifting auto front ends exceeding 3,000 pounds. An 800-pound bike shouldn't be that difficult by comparison.
__________________
Chance is offline   Reply With Quote
Old 12-13-2017, 10:00 PM   #96
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,267
THOR #8860
Chance...
The fact that the weight has been moved forward (By a HUGE amount!); makes all of the difference in the World.
Hanging 800 pounds or so off the rear of the frame rails, is a horse of a completely different color.
His garage is rated for 2500 pounds: mine is only good for 1500...
__________________

__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 02:35 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×