Reply
 
Thread Tools Display Modes
Old 10-08-2019, 05:02 PM   #1
Junior Member
 
Join Date: Oct 2019
Posts: 2
back bumper cargo carrier capacity on 21 FBRS?

Hello out there in RV world -

Just got a 2013 21FBRS and am wondering about the rear bumper.

It came with a 2 inch bike hitch which probably weighs about 40 pounds without bikes attached to the rear bumper.

I want to add a rear cargo carrier (about 50 pounds) centered on the bumper close to the bike hitch as well, to carry about 100 pounds of stuff i don't want to bring into the motorhome.

Can the bumper take the weight of these additions?

Thanks.

jb33r
__________________

jb33r is offline   Reply With Quote
Old 10-08-2019, 05:29 PM   #2
Site Team
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 19,302
Nope. That bike hitch is not factory, on a 2013 model. A previous owner must have installed it.
You would need to have the receiver welded and braced to the frame and bumper. The welds on the bumper are too weak to support this kind of mod.
__________________

__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH
bikendan is online now   Reply With Quote
Old 10-08-2019, 06:08 PM   #3
Member
 
rickj514's Avatar
 
Join Date: May 2019
Location: Temecula, CA
Posts: 34
I'm planning on installing a Curt Model 13703 adjustable trailer hitch with 2" receiver that is mounted to the frame.

Here's the AMAZON LINK.

IMO, this is a better solution than putting weight and stress on the bumper, which may cause it to eventually fail.

There are some products on the market called Safety Struts for transferring some of the weight from the bumper to the frame.
__________________

Rick & Marilyn
TT - 2019.5 Flagstaff MicroLite 25FBLS
TV - 2019 Ram 1500 Laramie 4X4
rickj514 is offline   Reply With Quote
Old 10-10-2019, 08:00 AM   #4
Pickin', Campin', Mason
 
5picker's Avatar
 
Join Date: Aug 2015
Location: South Western PA
Posts: 10,461
Quote:
Originally Posted by bikendan View Post
Nope. That bike hitch is not factory, on a 2013 model. A previous owner must have installed it.
You would need to have the receiver welded and braced to the frame and bumper. The welds on the bumper are too weak to support this kind of mod.
X2

Many R/V rear bumpers just cannot hold ANY weight.
The welds are bad and the metal thin. They are not all that way but LOTS are!

There are supports you can add to the bumper and several folks have reported doing successfully so. SafetyStruts by Mount n Lock

As mentioned, the best bet is to add something to the frame and reinforce it.
__________________
_________________________________________
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel-Goodyear Endurance Tires
2017 Ford F-Series SCREW 4x4 - Factory Puck B&W Companion
TST Tire Monitor w/Repeater - Sinemate 3500w Gen.

Days Camped: '16=46 '17=30 '18=51 '19=50
5picker is offline   Reply With Quote
Old 10-10-2019, 01:30 PM   #5
Casino Camper
 
jughrad's Avatar
 
Join Date: Dec 2015
Location: St Helens, Oregon
Posts: 164
Jack-It Bike Rack Installation & Review Video

I used put my bikes on the rear cargo rack, however, I preferr to use the rack for generator, cooler and firewood so I installed a Jack-It Bike Carrier. It is installed over the tongue jack on the trailers A-Frame.

__________________
2016 Cherokee 264L (Rear Living)
2013 GMC Sierra Denali
2019 Nights Camped: 11 Campgrounds: 3
2018 Nights Camped: 14 Campgrounds: 4
2017 Nights Camped: 39 Campgrounds: 12
2016 Nights Camped: 24 Campgrounds: 8
jughrad is offline   Reply With Quote
Old 10-10-2019, 02:30 PM   #6
Senior Member
 
Bluepill's Avatar
 
Join Date: Jun 2015
Location: Pensacola, FL
Posts: 1,538
Another option:

Heavy duty rear hitch receiver for hardside
__________________
2019 Coachmen Freedom Express 192RBS
2015 T12RBST Flagstaff Hardside

Disclaimer: The actual value of my "Two Cents" of advice varies just like a bitcoin.
Bluepill is offline   Reply With Quote
Old 10-10-2019, 03:24 PM   #7
Retired Old Fart
 
dward51's Avatar
 
Join Date: Nov 2018
Location: McDonough, GA
Posts: 619
Just remember that ultra light frames are usually going to be just thick enough to accomplish the job of handling the trailer 'as is'. Most even have warnings not to add items to the rear bumper.
__________________
Just the 2 of us in a...
2015 Freedom Express 246RKS
2002 GMC Sierra 1500
dward51 is offline   Reply With Quote
Old 10-10-2019, 03:42 PM   #8
Junior Member
 
Join Date: Jul 2017
Posts: 21
The bumper on my 268rks Vibe is attached with four clench type bolted fasteners. I put three bikes on the bumper and quickly had the bumper fail and dump the bikes on the highway. It was my fault not the manufacturerís. Bottom line....donít put anything heavier than a barbecue o the rear bumper unless you weld in additional supports. Period.
bjaspud is offline   Reply With Quote
Old 10-10-2019, 11:02 PM   #9
Member
 
Join Date: Mar 2017
Location: California
Posts: 63
Smile

I added the Mount n Lock with struts to carry my 3000w generator. Holding up well.
__________________
Chuck& Shar
2018 2715VS
ncebeemer is offline   Reply With Quote
Old 10-10-2019, 11:15 PM   #10
Senior Member
 
Join Date: Jun 2012
Posts: 10,251
I had beefed up receivers put on my Roo 19 (Post #2) and Mini Lite 2503S (Post #12); see here:

Installing a hitch on my roo.
__________________
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)

2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
rockfordroo is offline   Reply With Quote
Old 10-10-2019, 11:44 PM   #11
Site Team
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 19,302
Quote:
Originally Posted by ncebeemer View Post
I added the Mount n Lock with struts to carry my 3000w generator. Holding up well.
Your Windjammer isn't an ultralight, like the OP's trailer.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH
bikendan is online now   Reply With Quote
Old 10-11-2019, 09:27 AM   #12
Member
 
Join Date: Aug 2019
Posts: 38
Quote:
Originally Posted by bikendan View Post
Your Windjammer isn't an ultralight, like the OP's trailer.

Which means?


Ultralight is nothing more than a marketing buzzword, which in this case the word is Microlite.


A Flagstaff 21FBRS weighs 4171 lb and is 22' long, that's 189 lbs per ft.


A Windjammer 2715 weighs 6870 and is 32' long, that's 214 lbs per ft.


So 25 lbs per ft, or less than 1/2 a lb per cubic ft, makes a difference in what you can do with a bumper?


The bumpers are both 14 gauge, and on the longer trailer I would bet dollars to donuts Lippert used the same gauge (11) steel to make the machine welded fabricated beams for both trailers. They would of just increased the web and flange sizes to accommodate the additional length.


It all comes down to how they attached the tube bumper to the frame rails. If they just butt welded the 4X4 tube to the end on the main frame rail that's weak. If they actually notched the main frame rail to fit the 4X4 and added angle gussets like Rockwood / Flagstaff has been known to do then the OP may be able to do what he describes.
Feel Swift is offline   Reply With Quote
Old 10-13-2019, 04:18 PM   #13
Junior Member
 
Join Date: Oct 2019
Posts: 2
exactly.

the tube bumper on my 21fbrs is notched to the frame and "resting" on top of the lower part of the i-beam. Everything is welded together and just behind the bumper are two stabilizers bolted to the frame as well. Looks very solid. The bumper is not simply welded to the butt end of the I beam - its resting on the frame itself. The non-factory bike rack was there when I bought it. Just wondering how weight capable that bumper is with that kind of notched construction.
__________________

jb33r is offline   Reply With Quote
Reply

Tags
cargo

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 Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 05:04 AM.


×