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Old 01-30-2013, 12:42 AM   #1
AMusedRider OP
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Question F800GS Weight Reduction

Hello folks..

Any tips and tricks on how to reduce the weight of a F800GS?

I love my bike but would very much like to reduce the weight as much as I can. Got pinned underneath it a couple of times while riding off-road. Couldn't really do much but wait for someone to help me pick it up.

On a good day I would be able to pick it up myself but as I do more off-road riding I am getting increasingly wary of the weight and the fact that I might not always have someone to help me out.

Plus, reducing the weight might make it more attractive an option for long distance off road travel.

I cannot do without the crash bars and the bash plate for obvious reasons but I see the following options to get the weight down.
1. Change the exhaust to a Leo Vince. Will shave off a few pounds.
2. Switch to the Shorai Ultra Light battery. Savings of up to 8 pounds I am told.

Any other ideas that you have tried and tested??
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Old 01-30-2013, 02:21 AM   #2
LukasM
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Other than the battery and the exhaust there are no significant savings to be had, it will always be a heavy bike for off roading.

Going to a single caliper and narrower rims will make it handle better and feel quite a bit lighter while riding, but won't much difference if the bike is lying on top of you.... Same with a catless header, around 1 kg less IIRC.
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Old 01-30-2013, 10:21 AM   #3
SlowRide13
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Quote:
Originally Posted by AMusedRider View Post
Got pinned underneath it a couple of times while riding off-road. Couldn't really do much but wait for someone to help me pick it up.
Buy an extra set of shiny new plastics/blinkers/levers, and hang them up on your garage wall. Then, maybe you will jump out from under your bike instead of trying to use your body to protect it during a crash
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Old 01-30-2013, 11:15 AM   #4
BcDano
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Not a-lota

Got to agree with Lukas (battery & exhaust) not a lot of weight savings to be had even if you had big money to spend. For hardcore terrain you are better off to spend the money on a true off road machine or as has been suggested practice a better crash technique.
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Old 01-30-2013, 11:16 AM   #5
DoWorkSon
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Workout more? Practice deadlifts and leg press? Fill tank with less fuel?

In all honesty the only way I could see serious weight savings would be to replace nearly every small metal part with carbon fiber which would be $$$ and the overall weight savings would be negligible

Street bikes can get very light because they make carbon fiber tanks, wheels, and swingarms...... I don't think carbon fiber would hold up well off road
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Old 01-31-2013, 06:37 AM   #6
ebrabaek
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Originally Posted by DoWorkSon View Post
Workout more? Practice deadlifts and leg press? Fill tank with less fuel?

In all honesty the only way I could see serious weight savings would be to replace nearly every small metal part with carbon fiber which would be $$$ and the overall weight savings would be negligible

Street bikes can get very light because they make carbon fiber tanks, wheels, and swingarms...... I don't think carbon fiber would hold up well off road
It would hold up just fine, but it would make for a 40K motorcycle, if you could get the parts.
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Old 02-04-2013, 09:53 AM   #7
DoWorkSon
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Originally Posted by ebrabaek View Post
It would hold up just fine, but it would make for a 40K motorcycle, if you could get the parts.
I figured the impacts from off-road riding would just snap carbon fiber, but I am no expert on how well it would hold up....

A carbon fiber swingarm, airbox, and tank would definitely reduce some weight, but yeah, your talking about $15k....

How about hacking off the passenger pegs? Those would net you a few pounds, especially if you dont ride 2-up
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Old 02-04-2013, 05:08 PM   #8
ebrabaek
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Originally Posted by DoWorkSon View Post
I figured the impacts from off-road riding would just snap carbon fiber, but I am no expert on how well it would hold up....

A carbon fiber swingarm, airbox, and tank would definitely reduce some weight, but yeah, your talking about $15k....

How about hacking off the passenger pegs? Those would net you a few pounds, especially if you dont ride 2-up
That is actually not a bad idea, as they are made from heavy gauge steel. Hmmmmmm....... Yet again, I could loose a few myself...
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Old 02-04-2013, 08:31 AM   #9
Ceri JC
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Quote:
Originally Posted by DoWorkSon View Post
Fill tank with less fuel?
This alone will dwarf every other single weight saving you can make.

When you're riding with people on "proper dirtbikes" remember that they only have half, or even a third of the range of your bike. I find out what bikes other people are planning on riding and aim to be at the start (even if that is a gas station) with about 10 miles more range than the shortest-ranged bike.

The "F800GS Wunderlich Light" (Google it) is a good example of a really shaved down F800GS. It's not very pretty and it'd cost a lot to build one, but worth looking at for inspiration.

Good luck!
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Old 02-04-2013, 12:55 PM   #10
shashankmittal
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I have been researching about the same, how to make the 800GS lighter. The first thing that anyone can do in all honesty is to get rid of all the Touratech/other billet accessories. Seriously, they make a heavy bike obese really fast!

Now from the practical standpoint, would I do it? No. I want the protection offered by the crash parts and even if it makes the bike heavy, so be it. As others have pointed out, the best mods you can do to reduce weight is:
1. Full Titanium exhust, should shave off at least 20lbs. Extremely expensive though.
2. Lightweight Lithium Ion battery like Shorai, etc. Should shave off about 6-8lbs.
3. You can calculate the distance you'll be off-roading and fill only the necessary amount of gas in your tank. This will however work only for short trips or when you'll not too far away from civilization.
4. Remove the panniers and luggage racks when you're not carrying luggage.
5. If you often carry a fuel jog (like Rotopax etc), try mounting it towards the center and low. This will keep the center of gravity close to stock and your bike won't act funny.
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Old 02-05-2013, 06:35 AM   #11
JRWooden
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LJ:

Which brand rotors did you use?

I have one that's got to be replaced anyway, so might as well save a pound or two if I can ...
Is there any reduction in durability that you are aware of?

Thanks for any tips!
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Old 02-05-2013, 10:16 PM   #12
LJRAT
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Originally Posted by JRWooden View Post
LJ:

Which brand rotors did you use?

I have one that's got to be replaced anyway, so might as well save a pound or two if I can ...
Is there any reduction in durability that you are aware of?

Thanks for any tips!
Got a deal on Braking wave rotors
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Old 02-06-2013, 10:16 AM   #13
toro618
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I weighed both passenger pegs and tubes complete, which I cut off the sub-frame, and they came in at 3 lbs.
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Old 02-06-2013, 06:01 PM   #14
Mongo357
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don't forget the charcoal canister, that's worth a few pounds
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Old 02-10-2013, 07:19 PM   #15
AMusedRider OP
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Remus Exhaust System?

Has anyone replaced their stock exhaust system with this one?

http://www.solomotoparts.com/Remus-H...-F800GS-08-12/

This system is said to weigh only 1.5kgs. This system doesn't seem to have a catalytic converter ( I could be very wrong)






Has anyone used this? Any feedback on performance and value would be welcome.

How much does the stock one weigh? Does the lack of a catalytic converter make it illegal in California?

Thanks!
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