Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Honda Tech

Honda Tech Honda Tech Forum - For Questions specific and of interest to Honda riders only. Questions comparing which bike is best etc go in the "Which Bike" forum.
Contact Overland Solutions for all your custom modifications and setup for overland travel.

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 7 Jan 2011
Registered Users
HUBB regular
 
Join Date: Oct 2009
Location: St Arnaud, Vic, Australia
Posts: 26
XR400 rear frame support.

Can anyone suggest the best way to add extra bracing to the rear frame of an xr400 1998 model to support extra weight. I have a set of panniers that I will have to make a rack for but I think the rear frame wont hold alot of weight. Thanks Ernie.
Reply With Quote
  #2  
Old 8 Jan 2011
Registered Users
Veteran HUBBer
 
Join Date: Apr 2005
Location: Oxford UK
Posts: 996
Hi Ernie. I've not got any direct experience of a XR400 but I've faced the same problem on a XR600 and did eventually manage to load quite a bit onto it without anything breaking - pic below shows what I took on one trip





It involved making up a "subframe to attach to the subframe" to spread the load into the main part of the frame rather than having it all hanging on the end bolts and reinforcing the original Honda welding - particularly the area at the end of the subframe where the plastics attach. You'll also need to consider cross bracing to cut down on side to side movement.
Reply With Quote
  #3  
Old 8 Jan 2011
Registered Users
Veteran HUBBer
 
Join Date: Oct 2003
Location: Danmark
Posts: 332
Quote:
Originally Posted by backofbeyond View Post
..............You'll also need to consider cross bracing to cut down on side to side movement.
This is a good idea as this is where a XR400 rear frame usually gets bent, even without extra luggage.
If you look at it, from the top, you'll see 2 tubes connected by two other tubes at 90 degree. You only see squares and as you know you need triangles, for a construction to be stable.
__________________
Poul
May you enjoy peace and good health !
Reply With Quote
  #4  
Old 8 Jan 2011
Registered Users
Veteran HUBBer
 
Join Date: May 2007
Location: yorkshire
Posts: 373
if it help's I have had my xr400 from new ,bought it in 2006.

It's done 30,000 and as yet I have not strengthend the sub frame.

it's been used fully loaded and also used for two up trail riding.
Reply With Quote
  #5  
Old 11 Jan 2011
Registered Users
Veteran HUBBer
 
Join Date: Jul 2006
Location: the Netherlands
Posts: 138
i need to keep an eye on this tread, i just stripped my xr400 '96
and am waiting for some welding on the side stand.
__________________
I’m not afraid to go fast, it’s the crash and burn part that sucks.
Reply With Quote
  #6  
Old 12 Jan 2011
Steve Pickford's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Jul 2003
Location: Oxford, UK
Posts: 1,027
Weld a lug on to either side of the frame, just above the swingarm pivot and then extend the pannier mounts forward to bolt on to the welded lug. You could just drill through the lugs prior to welding them but on the DRZ below, I also tapped them to 8mm and then used a Nyloc on the rear to locknut them in place. You'll need to ensure that the longer bolt doesn't interfere with the chain run or hit the swingarm when the suspension compresses.





More pics here:
DRZ PANNIER FRAMES - Steve's Photos

I also extended the mounts to the pillion pegs and then forwards to the welded lugs for additional bracing. The bike's recently returned from a 4 month / 14,600 mile trip through South America with no issues at all.
__________________
My photos: www.possu.smugmug.com
Reply With Quote
  #7  
Old 13 Jan 2011
Registered Users
Veteran HUBBer
 
Join Date: Apr 2005
Location: Oxford UK
Posts: 996
Quote:
Originally Posted by Steve Pickford View Post
Weld a lug on to either side of the frame, just above the swingarm pivot and then extend the pannier mounts forward to bolt on to the welded lug.
That's really important. I looked at a DRZ to replace my XR600 and it looks like it has a much stronger subframe than the XR - you can see the really spindly subframe tubing on the picture I posted earlier, so considering how the weight of the luggage is going to impact on the frame is even more important on the XR.

If you look carefully in the picture you can just about see where I welded a lug onto the frame and the pannier mount tube going to it. Without the extension tube taking the stress forward to the main frame all of the luggage weight is hanging on two 6mm bolts originally intended just to support the mudguard and rear light.

Great looking rack btw. Not surprised it made it round SA without problems.
Reply With Quote
  #8  
Old 13 Jan 2011
Steve Pickford's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Jul 2003
Location: Oxford, UK
Posts: 1,027
Quote:
Originally Posted by backofbeyond View Post
That's really important. I looked at a DRZ to replace my XR600 and it looks like it has a much stronger subframe than the XR - you can see the really spindly subframe tubing on the picture I posted earlier, so considering how the weight of the luggage is going to impact on the frame is even more important on the XR.

If you look carefully in the picture you can just about see where I welded a lug onto the frame and the pannier mount tube going to it. Without the extension tube taking the stress forward to the main frame all of the luggage weight is hanging on two 6mm bolts originally intended just to support the mudguard and rear light.

Great looking rack btw. Not surprised it made it round SA without problems.
I see you're in Oxford, there's quite a few of us off various forums & the TRF in the area who are all in to bike travel, offroading, spannering etc. Let me know if you want to meet up. We normally meet up monthly in a pub near Benson.
__________________
My photos: www.possu.smugmug.com
Reply With Quote
  #9  
Old 13 Jan 2011
Registered Users
Veteran HUBBer
 
Join Date: Apr 2005
Location: Oxford UK
Posts: 996
Hi Steve

I'm actually in Thame but there's no point in putting that in my profile as no ones heard of it !

Be great to link up with others of like mind. The Benson meet sounds like a good place to start - could you pm me some details.
Reply With Quote
  #10  
Old 13 Jan 2011
Registered Users
HUBB regular
 
Join Date: Oct 2009
Location: St Arnaud, Vic, Australia
Posts: 26
Thanks for your suggestions. The motors comming out this week for a rebuild so will have a good chance to strengthen rear then.
Ernie.
Reply With Quote
  #11  
Old 13 Jan 2011
Steve Pickford's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Jul 2003
Location: Oxford, UK
Posts: 1,027
Quote:
Originally Posted by backofbeyond View Post
Hi Steve

I'm actually in Thame but there's no point in putting that in my profile as no ones heard of it !

Be great to link up with others of like mind. The Benson meet sounds like a good place to start - could you pm me some details.
We normally post up on UKGS'er in the Thames Valley forum, most of the group frequent this forum, Advrider, UKGS'er & the UK KTM forum.

1st one for 2011 - ::. UKGSer.com .::

Just keep an eye out, see you there.
__________________
My photos: www.possu.smugmug.com
Reply With Quote
  #12  
Old 25 Apr 2011
Registered Users
Veteran HUBBer
 
Join Date: Jul 2006
Location: the Netherlands
Posts: 138
here is my setup

By beat_ at 2011-04-21
as you can see i cut the subframe and attached it higher to the frame
this way the panierrack van attach to the original mounting holes of the subframe.
where the tank and sadle meet, i welded a "u" piece to it to bolt the frame on
the two sides are connected with a tube over the number plate and a piece of "flat" steel folwing the arch of the subframe under the fender. a can attach the to arches together with a bolt
__________________
I’m not afraid to go fast, it’s the crash and burn part that sucks.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
XR400 Rear subframe: strengthening? Warthog Honda Tech 3 31 Dec 2007 10:10
XR400 - touring rear subframe JMo (& piglet) Honda Tech 11 30 Jan 2007 18:58
AT Rear Sub Frame Fletch Honda Tech 6 2 Dec 2006 22:23
XR400 frame building shwa Honda Tech 2 24 Aug 2005 18:37
xrl 650 rear frame tarisius Honda Tech 4 22 Jul 2005 10:29

 
 


HU DVD Summer Special!

Now that summer is here, get On the Road! Take 30% off the Achievable Dream - On the Road! 2-DVD set until August 31 only. Get On the Road! Learn the tips to staying healthy, happy and secure on your motorcycle adventure!

Our veteran travellers share their tips (and great stories) for staying healthy, happy and secure on your motorcycle adventure.

"A fantastic, informative and inspirational DVD."

"It's brilliant - thank you very much!"

Check it out at the HU Store! Remember to use Coupon Code 'ONTHEROAD' on your order when you checkout.


Renedian Adventures


Renedian Adventures

What others say about HU...

"I just wanted to say thanks for doing this and sharing so much with the rest of us." Dave, USA

"Your website is a mecca of valuable information and the DVD series is informative, entertaining, and inspiring! The new look of the website is very impressive, updated and catchy. Thank you so very much!" Jennifer, Canada

"...Great site. Keep up the good work." Murray and Carmen, Australia

"We just finished a 7 month 22,000+ mile scouting trip from Alaska to the bottom of Chile and I can't tell you how many times we referred to your site for help. From how to adjust your valves, to where to stay in the back country of Peru. Horizons Unlimited was a key player in our success. Motorcycle enthusiasts from around the world are in debt to your services." Alaska Riders

contest pic

10th Annual HU Travellers Photo Contest is on now! This is an opportunity for YOU to show us your best photos and win prizes!

NEW! HU 2014 Adventure Travel T-shirts! are now available in several colors! Be the first kid on your block to have them! New lower prices on synths!

HU 2014 T-shirts now in!

Check out the new Gildan Performance cotton-feel t-shirt - 100% poly, feels like soft cotton!


What turns you on to motorcycle travel?


Global Rescue, WORLDwide evacuation services for EVERYONE

Global Rescue is the premier provider of medical, security and evacuation services worldwide and is the only company that will come to you, wherever you are, and evacuate you to your home hospital of choice. Additionally, Global Rescue places no restrictions on country of citizenship - all nationalities are eligible to sign-up!


New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80 G/S motorcycle.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events (22 this year!); we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, the HUBB or to receive the e-zine. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.


Books & DVDs

amazon

All the best travel books and videos listed and often reviewed on HU's famous Books page. Check it out and get great travel books from all over the world.


Motorcycle Express for shipping and insurance!

Motorcycle Express

MC Air Shipping, (uncrated) USA / Canada / Europe and other areas. Be sure to say "Horizons Unlimited" to get your $25 discount on Shipping!
Insurance - see: For foreigners traveling in US and Canada and for Americans and Canadians traveling in other countries, then mail it to MC Express and get your HU $15 discount!




All times are GMT +1. The time now is 22:12.