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

BMW Tech BMW Tech Forum - For Questions specific and of interest to BMW 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.

7 Litre Camel Tank Lets You Explore More, Click to Find out More!

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 18 Oct 2007
Registered Users
HUBB regular
 
Join Date: Oct 2007
Location: Philadelphia, USA
Posts: 30
My R80 Custom Adventure Bike

I will be starting my R80 custom adventure bike soon. I will be posting pictures of my progress and ideas that I have. I hoping to get some tips and feedback along the way. Here is a picture of my frame. It is a monolever frame. It was made in August of 1986 . It has a title. Hopefully it is straight!?! $210 Shipped.

I have rented a 10,000 square foot warehouse. It might be a bit overkill for this project but here is where I will be building it.

Warehouse
Attached Images
  
Reply With Quote
  #2  
Old 18 Oct 2007
Gold Member
Veteran HUBBer
 
Join Date: Apr 2006
Location: Philadelphia, US
Posts: 648
Alex,
I'll definitely pitch in to help you with this in Philly...maybe we can stick a classic K-bike motor on there!

edde
__________________
edde
93 BMW K75s
www.motoedde.com
Reply With Quote
  #3  
Old 19 Oct 2007
Gecko's Avatar
Slippery when wet
Veteran HUBBer
 
Join Date: Mar 2006
Location: Buxton,Derbyshire
Posts: 291


That's an interesting start you've made and quite a novel idea by attaching a large fan to the bottom of the frame . Will you get enough lift from that to get it to hover and what are you thinking about for forward propulsion ?
__________________
...on the road to nowhere...

Biking roads by bikers for bikers www.bestbikingroads.com
Get involved - save a life today www.bmdw.org
Reply With Quote
  #4  
Old 19 Oct 2007
Contributing Member
Veteran HUBBer
 
Join Date: Oct 2002
Location: montana usa
Posts: 523
Bike accesories

That's a air conditioner for riding in hot climates. It keeps the chocolates from melting.
Reply With Quote
  #5  
Old 22 Oct 2007
Mr. Ron's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Oct 2003
Location: Vancouver, BC, for now...
Posts: 798
Here's a few sugestions. Start by tossing the rear sub-frame and build one out of Chro-mo, be sure to gusset and triangulate properly to the main frame. Look closely at how BMW welds attachment points to the tubing and copy it. Re-enforce the frame Ala HPN.Good time to start thinking about a new tripple clamp and some real forks. KTM stuff is a good option. WP 4860 forks are an excellent fork, found on E-Bay sometimes for cheap and easy to customise. Marazzocci 50mm Extreme is also a good bet, but not as plentiful. Make sure you use parts that are common and easy to find. Wish i were there!
Reply With Quote
  #6  
Old 24 Oct 2007
Registered Users
Veteran HUBBer
 
Join Date: Jun 2005
Location: Cape Town / South Africa
Posts: 223
Don't screw around, if you plan on spending good money send the damn frame to HPN and have it reinforced. They will provide mounting points for the 43L tank, larger fairings etc. and the sub frame will be redone with new gussets and extra reinforcing. While you do this let them also add the pannier frame kit. I will also consider the option of fitting the long travel forks with lengthened swing arm. All and all you would need about $9500 for this lot that should include the frame mods, WP 48mm forks to fit your G/S front wheel, rear shock and the longer drive shaft. This will also include a new crash bar set modified with longer side stand and the small carrier frame for single seat use.
The only downside to this is that you will have to find something else to do for the next one and a half years as this is how long you will have to wait for them to get your job done.
But time flies and before you know it you will be ready to start assembly of one of the greatest machines ever built

Last edited by gsworkshop; 17 Sep 2008 at 18:32.
Reply With Quote
  #7  
Old 26 Oct 2007
Registered Users
HUBB regular
 
Join Date: Oct 2007
Location: Philadelphia, USA
Posts: 30
Getting it done by HPN would be awesome but I dont really want to pay the euro. I love working on my bike at every level too. The hardest thing hpn does is change the angle of the headtube. Sending a frame across the seas and to get powercoated and welded and for it to take a long time isnt practical. I think the US has a lot fabricators that can do what I need done. I am still debating whether or not to get all of these upgrades. I need to decide soon so I can continue with my project.

Last edited by alexr; 26 Oct 2007 at 19:39. Reason: bad english
Reply With Quote
  #8  
Old 27 Oct 2007
Mr. Ron's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Oct 2003
Location: Vancouver, BC, for now...
Posts: 798
Quote:
Originally Posted by alexr View Post
Getting it done by HPN would be awesome but I dont really want to pay the euro. I love working on my bike at every level too. The hardest thing hpn does is change the angle of the headtube. Sending a frame across the seas and to get powercoated and welded and for it to take a long time isnt practical. I think the US has a lot fabricators that can do what I need done. I am still debating whether or not to get all of these upgrades. I need to decide soon so I can continue with my project.
I agree. As awesome as HPN is, what they do is not rocket science. Any good fabricator who is skilled with motorcycles can do the same job for much less. Alex, are you a fabricator, or will you be farming most of the work out?
Reply With Quote
  #9  
Old 28 Oct 2007
AliBaba's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Apr 2001
Location: Norway
Posts: 1,349
Quote:
Originally Posted by Mr. Ron View Post
I agree. As awesome as HPN is, what they do is not rocket science. Any good fabricator who is skilled with motorcycles can do the same job for much less.
Do you happen to know what HPN does with the frame? The reinforcement is just a small part of the work.
I seriously doubt that any good fabricator could do the same work for around 1000 Euro, but they can probably make copies of the reinforcement.
Up here all I can get for 1000 euro is that I can rent a welder for less then two days, will he manage to get me a frame with the same quality? I don’t think so; he will probably need at least a week just to build the jigs, after he has figured out how they should be.


Most fabricators will also have problems with tasks like:
-Extend monolever and driveshaft
-Produce extended paralevers
-Hub-production
-How to fit a 140” tire on a monolever and paralever
-Increase power with 50 percent and still have a durable engine
-Design titanium conrods
-Design cranks
-Design camshafts
-Make the smoothest boxer-engines ever produced
….. the list goes on and on.

BTW: it is all tüv-approved.


Most good fabricators will know how to make parts if you give them a drawing or a part they can copy but only a few are able to design something from scratch.
IMHO HPNs advantage is that they have a lot of experience and they have good designers. They have build aprox 700 bikes and sold a lot of parts.
Most companies (even Gletter) that builds airhead-adventure bikes use some HPN-parts


I’m not saying that HPN is the only ones who can modify bikes, and modifying a bike can be really funny (this also goes for a HPN-project).
I have spent a lot of time modifying my own bikes for many years and it has given me much pleasure and I have learned a lot. It’s a nice hobby!
Reply With Quote
  #10  
Old 29 Oct 2007
Registered Users
HUBB regular
 
Join Date: Oct 2007
Location: Philadelphia, USA
Posts: 30
I think a simple head tube reinforcement and a reinforced subrame should do the trick. Most driveshaft shops can extend a driveshaft. I dont know how hardcore i need to get with titanium connector rods. I dont want to build a race bike.
Reply With Quote
  #11  
Old 29 Oct 2007
Registered Users
HUBB regular
 
Join Date: Oct 2007
Location: Philadelphia, USA
Posts: 30
Quote:
Originally Posted by Mr. Ron View Post
I agree. As awesome as HPN is, what they do is not rocket science. Any good fabricator who is skilled with motorcycles can do the same job for much less. Alex, are you a fabricator, or will you be farming most of the work out?
I would like to most of my self. I do lack a lot of tools though. If I get my hands on a welder, i would like to do the reinforcements. There are a few things I i might get farmed out elsewhere like the triple clamps that work with bigger forks. There is someone in Virginia that machines them, and they wont mess around with the tank. Its stuff like that, I dont want to dropping money on R&D.
Reply With Quote
  #12  
Old 29 Oct 2007
Registered Users
Veteran HUBBer
 
Join Date: Jun 2005
Location: Cape Town / South Africa
Posts: 223
Hi Alex
The only part of the red and white bike that has been assembled or worked on by HPN was the frame. The rest of the work I have done myself. HPN have supplied most of the parts but then a lot of what was done to this bike is great but not necessary for a traveling bike.
GS frames do crack and brake and from the rally experience HPN accumulated a wealth of knowledge to reinforce the frames at the areas where the are most likely to brake. Besides, after welding the frame is all twisted from the heat and need to be straighten again. HPN uses a special jig for this and it can take an experienced operator some time to get the frame true again.
The money spend on the frame including the shipping is peanuts in comparison with what you are going to spend on this bike, so don't be wise about this. Besides you are playing with your own life because a frame collapsing at 120km/h will not be fun and can cost you more than the approx. $ 4000.00 for the basic adventure frame with no crash bars and pannier frame including shipping from the US and back. (no powder coating as they will send you the frame as is after the changes are made.)
Reply With Quote
  #13  
Old 29 Oct 2007
Contributing Member
Veteran HUBBer
 
Join Date: Aug 2005
Location: Fort Lauderdale,Forida,USA
Posts: 742
BMW mods

Hi guys ,
I did some extensive trip with my old Bemmer and I was curiouos to know if you guys are really sure about spenting that much money on a used bike is wise and well worth it. I always upgraded my bike and easily spent few $1000 dollars doing it but $10000+ on frame work.. is that such a huge diffence?, I am not criticising I am just curious. Regarding using a regular welder to work on transforming your frame ,I will think that may be difficult to find a guys with enough experience and real knowledge to do it right, anyone can weld but I saw pro welder doing HD and I will not trust them on something so different to thier regular work.I once design my own luggage rack and it took me a lot of time and reseach to get the right guy to do the job.
__________________
Hendi Kaf

http://Hendikaf.com

http://webbingthegood.com/
Reply With Quote
  #14  
Old 29 Oct 2007
Mr. Ron's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Oct 2003
Location: Vancouver, BC, for now...
Posts: 798
I modified my own ´89 PD for about $7k, plus $4k for the bike. I stripped and re-enforced the frame. Built a Chrome-moly sub-frame and designed a simple but solit pannier system. I also built a custom tripple-clamp for WP 4860 forks, which i had shortened and re-sprung by a pro. I have a 215-21 front whel with oversize spokes built for Ralley laced onto a billet Eagle hub. The bike uses a KTM Hardparts 310mm rotor and a Berringer 4-piston caliper. With a 12mm master cylinder, only 2 fingers will lock up the front wheel! Motor has re-built heads with dual plugs, 32mm carbs. The bike is rock solid and has been tested two-up, easily burns any fuel you put into it and is super re-liable. Compared to my recently purchased, over complicated 12oo gs, this is a better travel bike hands down, which is why i´ve decided to keep it
You can see it here: web.mac.com/adventman .
I won´t argue with the quality of HPN, their stuff makes me drool! But i also feel that it may not be necesary for just a travel bike. Depends on your expectations, really.
Just a note: I work as a Special Effects Fabricator in the Vancouver film industry. The stuff i build usually puts the well being of everyone involved into my hands. Failure is never an option! I´m fortunate to have both the tools and the skills to build my own bikes. I don´t mean to say in my previous post that these mods can be done by just anyone. I apolagise for any mis-understanding.
HPN is without a doubt the master in building off-road airheads and should be considered if someone plans on going to the extreme that these bikes are built for. That being said, i read about a guy who recently rode around the world on some kind of scooter thing...to each their own.
Reply With Quote
  #15  
Old 29 Oct 2007
Mr. Ron's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Oct 2003
Location: Vancouver, BC, for now...
Posts: 798
Quote:
Originally Posted by alexr View Post
I would like to most of my self. I do lack a lot of tools though. If I get my hands on a welder, i would like to do the reinforcements. There are a few things I i might get farmed out elsewhere like the triple clamps that work with bigger forks. There is someone in Virginia that machines them, and they wont mess around with the tank. Its stuff like that, I dont want to dropping money on R&D.
You can use a KTM tripple clamp from a 950, you only need a new pin machined to fit the bearings in your headstock. This also makes life much easier, all front-end components become plug and play KTM parts, which are very good IMHO.
...But! I just remembered, you MAY have clearence issues with the fuel tank. This is the problem with the ´89 PD, requiring a custom clamp.. Maybe GS Workshop knows?? Maybe placement of the tank ot the tank itself can be adjusted?
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
South America Motorcycle Adventure Movie: Contest Announceme motorbikewithmike.com Travellers Seeking Travellers 79 12 Dec 2007 21:59
My opinion of a KLR after 8000K vinnyt Kawasaki 10 20 Dec 2006 17:29
Buying a foreign owned bike in Chile with the owner not in the country sunflowers South America 8 28 Sep 2006 19:11
New adventure bike coming? ekaphoto Which Bike? 1 15 Jul 2005 03:43
UK citizen on Australian bike to NZ & S America ribspare Trip Paperwork 7 11 Mar 2005 14:27

 
 


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 15:16.