Converting a BOB Ibex trailer for Highway Use - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
General V-Strom Discussion Talk about all things V-Strom not limited to just one of the above models

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 51 Old 10-17-2013, 06:04 PM Thread Starter
Stromthusiast!
 
redbarber's Avatar
 
Join Date: Jul 2012
Location: Atlanta, GA
Posts: 132
Converting a BOB Ibex trailer for Highway Use

I'm in the process of converting a BOB Ibex cargo trailer (made for bicycles) to pull behind my Wee. I'm sharing this info, because it was here, about a year or so back, that I got the original idea. I'm really not interested in any of your opinions regarding the pros and cons of trailering. If this starts heading that direction, I'm just going to log off again. But if anyone has any USEFUL tips or ideas that you'd like to share, I'm all ears.
So far, I've extended the swing-arm 2", which allows me to run a Yamaha TTR90 front wheel, and an IRC NR-77 tire. With new sealed wheel bearings, this setup is rated for 94 MPH and about 280 lbs. The trailer itself is only rated for 70 lbs, so I have a bit of a cushion.
Next, I mocked up a hitch, which mounts to the insides of my Happy Trail racks. I used 3/4 in square tubing, and it's VERY strong and rigid. I can unscrew four grade-8 bolts and the whole thing just drops off. (Necessary for changing tires, etc. The whole hitch is TIG welded and gussetted, except for the actual coupler. This piece bolts on, and there is room for a small amount of rotational adjustment so I can level the hitch if needed.
The Ibex trailer itself is made from 4130 Chromoly steel and I am confident that the loads I'm planning to carry will not put any strain on any of this hardware. It's my hope that the 50-70 pounds of gear that were riding in my oversized top-case during my last tour will be riding instead down on the trailer. Still got to license it, put lights and license plate mounting, etc. But I pulled it for the first time today, in a miserable rain. I'm posting one pic, and you'll see that the hitch isn't even painted yet. (it really was just one pic, I cut it up to meet file size limitations.)
Attached Images
File Type: jpg Trailer hooked to new hitch1-tiny.jpg (13.7 KB, 302 views)
File Type: jpg Trailer Only1.jpg (49.0 KB, 241 views)
File Type: jpg Hitch Raw1.jpg (39.6 KB, 205 views)
redbarber is offline  
Sponsored Links
Advertisement
 
post #2 of 51 Old 10-17-2013, 06:16 PM
Stromthusiast!
 
RCinNC's Avatar
 
Join Date: Dec 2012
Location: North Carolina
Posts: 4,751
Those are great trailers. I'm curious about how well the trailer shock performs at highway speeds (in the 55-75 mph range). They definitely weren't engineered for those speeds, so I'm curious if you've had any issues with it.

"No matter where you go, there you are."
RCinNC is offline  
post #3 of 51 Old 10-17-2013, 06:27 PM
redbike72
Guest
 
Posts: n/a
Amazingly neat and tidy piece of engineering.
I have an Ibex for my pedal bike. I haven't figured out how to dampen the bouncing on rough roads though.
Do you think that might be an issue at higher speeds? Perhaps some kind of hitch damper might be in order because the trailer is so light.
I'm not an engineer so that's just a wild guess.
 
post #4 of 51 Old 10-17-2013, 10:00 PM Thread Starter
Stromthusiast!
 
redbarber's Avatar
 
Join Date: Jul 2012
Location: Atlanta, GA
Posts: 132
Quote:
Originally Posted by redbike72 View Post
Amazingly neat and tidy piece of engineering.
I have an Ibex for my pedal bike. I haven't figured out how to dampen the bouncing on rough roads though.
Do you think that might be an issue at higher speeds? Perhaps some kind of hitch damper might be in order because the trailer is so light.
I'm not an engineer so that's just a wild guess.
I've only pulled it empty for about 3 miles so far, so I have no answers, just alot of the same questions. However, I have some options in mind if need arise. For example, in place of the simple spring suspension unit, (not a shock at all, just a spring), I can utilize any number of higher-end mountain bike units, including air springs with real dampeners. I intend to carry about 50-70 lbs, so we'll just have to see what happens with the bouncing. What I AM sure of, is that even if it bounces, it'll be better than the huge top-case I carried on my last trip. Bike was so top-heavy it was scary! I hope this works out, because so far, I'm only in it for about $600 total.
redbarber is offline  
post #5 of 51 Old 10-17-2013, 10:24 PM
Stromthusiast!
 
RCinNC's Avatar
 
Join Date: Dec 2012
Location: North Carolina
Posts: 4,751
If you find that you get too much of that pogo effect when you're at speed, Fox makes a rear shock with a lockout feature. That way you'd have some flexibility if you wanted to keep the suspension when you were on fire roads or whatever, but could make it rigid on the highways.

There are of course other cheaper manufacturers than Fox, and I even saw some videos on Youtube from cyclists who made their own rear shock lockouts.
RCinNC is offline  
post #6 of 51 Old 10-17-2013, 10:50 PM
Stromthusiast!
 
Join Date: Aug 2012
Location: Spokane, WA
Posts: 503
Good for you. I have wanted to convert one for some time. I actually would like to do it and mount a bicycle rack to it. I have a little TW200 and that would be the bike I would use to pull it.

Might have been me that gave you the idea

https://www.stromtrooper.com/dl650-20...luggage-4.html

2014 BMW F800gs

2011 TW200

2012 DL650 SOLD

2007 DL650a SOLD

Last edited by stephenmarklay; 10-17-2013 at 10:53 PM.
stephenmarklay is offline  
post #7 of 51 Old 10-18-2013, 07:36 AM Thread Starter
Stromthusiast!
 
redbarber's Avatar
 
Join Date: Jul 2012
Location: Atlanta, GA
Posts: 132
Quote:
Originally Posted by RCinNC View Post
If you find that you get too much of that pogo effect when you're at speed, Fox makes a rear shock with a lockout feature. That way you'd have some flexibility if you wanted to keep the suspension when you were on fire roads or whatever, but could make it rigid on the highways.

There are of course other cheaper manufacturers than Fox, and I even saw some videos on Youtube from cyclists who made their own rear shock lockouts.
I've had a few other ideas that I may try out. As for a lockout, I can do that pretty easily with a solid strut in parallel with the shock, I'd just have to put longer bolts in and add some wing-nuts to hold it on. Another idea I like better is to build a "friction" shock absorber, like were used on vintage cars. Two metal arms joined at a pivot joint, with a stack of alternating steel and bronze washers, held by a bolt with a spring washer and wing-nut. "Dampening" is achieved by tightening or loosening the wing-nut to set the desired amount of friction. If I can make this work, I'll post details and pictures.
Attached Images
File Type: jpg Image4.jpg (17.7 KB, 58 views)
redbarber is offline  
post #8 of 51 Old 10-18-2013, 03:01 PM Thread Starter
Stromthusiast!
 
redbarber's Avatar
 
Join Date: Jul 2012
Location: Atlanta, GA
Posts: 132
Okay. Got the hitch painted and re-mounted on the Wee. Made up some safety cables, in case something comes undid. Took the empty trailer out for a second test flight. Nice weather today, so we went a bit further, probably about 20 miles. So far, still running empty. At speeds up to 75, it was very smooth sailing. I can't tell you what the trailer was doing, because I can't see it at all while I'm riding. My Givi topcase completely blocks any view of it. However I could not feel anything from back there. In fact, I did have one emergency. Out of nowhere, I suddenly had the suspicion that the trailer had fallen off. Couldn't see it, couldn't feel it, did not hear anything! I pulled over and stopped as quickly as I could, dreading the thought of going back to locate my scrapped up, bent and broken Ibex. False alarm! It was right there like it should be.
Next step is to set up lights and a place for the full size license plate. After I'm "legal", I'm going to start some more sophisticated testing. I'm going to try to mount my Kodak Playsport video camera on the bag rack facing the trailer, and get some video of what's going on. I'll use a 60 lb bag of sand as a load, and then we'll see if changes need to be made. I took a few more pictures, with close up details.
Attached Images
File Type: jpg Second Day - Sunny.jpg (65.2 KB, 131 views)
File Type: jpg Coupler Close up.jpg (75.9 KB, 108 views)
File Type: jpg Hitch detail.jpg (89.5 KB, 127 views)
File Type: jpg SwingArm Detail.jpg (86.6 KB, 130 views)
redbarber is offline  
post #9 of 51 Old 10-18-2013, 03:21 PM
$tromtrooper
 
biker128pedal's Avatar
 
Join Date: Jan 2009
Location: Eastern, VA
Posts: 658
You may try a bag of sand next for a load. At least if it falls off you readied the road for ice this winter. Seriously I would use the sand for some dry runs and panic stops. I bet the trailer is designed for over 60 mph with a factor of safety added. Just think of a fully loaded touring bicycle down a steep hill.

Vstrom 650 ABS
'09 DR650
'07 Vulcan 900 LT
biker128pedal is offline  
post #10 of 51 Old 10-18-2013, 03:22 PM
Stromthusiast!
 
RCinNC's Avatar
 
Join Date: Dec 2012
Location: North Carolina
Posts: 4,751
Shouldn't you do the testing before you title and register it? If it turns out to be unworkable from an engineering standpoint, won't it be a waste of money to add lights and then get it titled first? I think you could do enough real world loaded testing in a parking lot without having to get it titled and registered.

It would be good to have a friend follow you while you're riding, to see how the trailer acts and to note any weird handling problems.

You've definitely identified one problem with the small lightweight single wheel trailers; you can't see them when you ride! I bet that even when you put the maximum weight on that, you wont be able to tell it's back there; it might even warrant some sort of breakaway alarm (like those jogger alarms that go off when you pull the pin), just in case the trailer decides to go its own way while you're riding....

Oh, and I forgot to say...so far, it looks pretty good!

"No matter where you go, there you are."
RCinNC is offline  
Sponsored Links
Advertisement
 
Reply

Tags
b.o.b. , bob , ibex , trailer , wee

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome