Going to make tank guards

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by HappyGoLucky, Dec 1, 2005.

  1. HappyGoLucky

    HappyGoLucky Goeie Grys Giftige Gert!

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    Hi All

    I want to make tank guards - after searching with the new Google enhanced search function I found BigTwins original post where he posted the results of his good work (wow!) and this inspired me.

    I am ordering my bike tomorrow and know that I want some decent protection.

    Looking up at the tanks and where they get scuffed, do you all think it would be wise and feasible to not only make guards for the lower portion of tank, but also a snug fitting cover for the upper portion of the tanks and leading front edge.

    Surely this would be useful in protecting the tanks not only from cosmetic damage - but also from structural damage.

    So now its question time:

    1) Would it be feasible to make the guards out of fibgreglass cloth? If so, how many layers would it require to be as strong as a 6 layered carbon fibre kevlar guard?

    2) Would anyone else be interested in these goodies?

    Well, I am ordering my bike tomorrow so lets see what comes up :D

    Thanks
    #1
  2. Brucasso

    Brucasso Been here awhile

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    All the carbon fiber guards are good for are rock chips. They will not save a tank in a crash like the bars will. They do look good tho and are a must have for any posers.:evil
    #2
  3. HappyGoLucky

    HappyGoLucky Goeie Grys Giftige Gert!

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    Hey Brutus

    Well after researching this exact topic (must have gone through 20 odd threads), it seems that the conscencus is actually in favour of the carbon tank protectors as opposed to the bars which slip, bend inwards and sometimes nudge the tank too.

    Only complaint I have seen is that the KTM ones are quite fragile and therefore not worth it..
    #3
  4. 950TRANSALP

    950TRANSALP Been here awhile

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    SWmotech and Hepco Becker ! These folks have both , I've used the SW's all summer with no bends , no scratches on tank and there lots less than carbon . Great people to work with too! www.twistedthrottle.com K.B.
    #4
  5. Skinner

    Skinner Mr.KTM

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    Toss that bike down a hill and over a few logs and rocks, you'll be glad to have the protection of the bars over the carbon covers. A little bending is better than losing a tank if you want to ride back home. Of course the ideal setup is both.
    If all you plan on doing just gravel and such the carbon fiber will probably hold up just fine.

    In my opinion, I need the bars, the carbon will only help for a punture type of injury to the bike, such as a small rock or gravel might cause. I don't see how they can help keep you from ripping a tank off the bike in the woods or rocks etc.
    #5
  6. Skinner

    Skinner Mr.KTM

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    What type of crashes have your bars been through? Highsides, lowsides, rolls, what? It helps to hear the abuse these things take in order to understand their value.
    I have the KTM bars, and so far no major crashes on them however I have thoroughly thashed my bike through some extremely tight woods. The kind where you lean the bike into the tree trunk in order to slip the back end around because the turns are to tight. Also the trail was not wide enough so I had to use the bars to part the trees as I passed through.

    So, once again I like the bars over the carbon covers, but think the ideal setup is both.
    #6
  7. YOGOI

    YOGOI Prick

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    Fly-n-Go crashed in the barstow to vagas and bent his bars into the tank and cracked his tank. I dont know much more than that. Well have to see if we can get him to post some pics.
    #7
  8. AFekete

    AFekete Long timer

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    I've yet to see or even hear of any of our carbon tank guards failing in any instance. They are very thick, sturdy as hell, and mount fairly easily.

    They offer excellent protection.

    I think combined with a set of tank protection bars you have everything covered very well. There are a number of bars available from Hepco Becker, SW Mo, KTM, and Touratech. I think for the most part they are all pretty decent and some protect more then others.

    Kevlar is great for abrasion resistance but it is expensive as hell. Big Twins guards are very nice hand made items and did the job well.

    thanks,
    A
    #8
  9. jsrider

    jsrider Long timer

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    Hmm..if he crashed hard enough to bend the bars, I wonder what would've happened if he didn't have bars?
    #9
  10. Tennktm

    Tennktm Been here awhile

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    Does anyone have any experience with the SW MOTECH crash bars????????? I think I may prefer the build and price of them over the HBs and KTMs.....
    #10
  11. Pointman0853

    Pointman0853 Unregistered Gun Owner

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    #11
  12. Renazco

    Renazco Formerly AKA Boejangles

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    why you need crash guards,

    [​IMG]


    protection that fails,,, KTM carbon fiber junk!

    [​IMG]

    my advise would be to stick with Kevlar or buy the ones Andrew swears by,
    if your gonna do crash bars make sure they break away easily so as to not effect the integrity if the bike, jmo..
    #12
  13. Greg Minor

    Greg Minor The Trespasser

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    This was what his looked like
    [​IMG]
    this is what mine looked like
    [​IMG]
    pretty good hit I was in a full drift when I hit him sideway foot peg first then me and the tank. The only damage to the tanks was a leaking fuel line. I rode home. My opinion is the good tank guards that big twin makes AND crash bars are the ideal. FYI the paint gets a little scratched up under the guards from dust and water getting in between the paint and the gaurd so don't think of this as a way to protect the shine.
    #13
  14. zak0r

    zak0r Adventurer

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    so how many times have you thrown your bike to the ground, slid around with it, dropped it etc?

    experience by quite a large number of german lc8 abusers shows that thanks to the slick shape of the lc8, you want it to scrape over the ground, protected by carbon tankpads. that way it doesnt hook to any objects and dissipates energy slower. crashbars do nothing but bad for the bike, they make it hook to objects, have danger of damaging the frame etc.
    get carbon pads for the lower tank like the 06 models have in plastic and make sure to get folding mirrors and the oem pannier mounts who protect the mufflers from damage adequately.
    apart from that, the nine fiddy is very crash worthy and does not need bars like the bmw's who have these cylinders sticking out that need protection.
    crashbars are just a bling bling looks item on the 950, go for carbon guards, preferably 2mm thick and not as useless as the KTM oem ones.
    #14
  15. HappyGoLucky

    HappyGoLucky Goeie Grys Giftige Gert!

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    Hey Guys, I just did some extensive phoning around and have located kevlar to use. Pretty darn expensive stuff. I am envisaging making guards not only for the lower tank, but also for the upper tank (with holes for the tank bolts etc). I also envisage these wrapping around the leading edge of the tank (the part facing the front)

    Anybody think this a great idea? Yes/ No?

    And why use Carbon Fibre when its not really that strong in terms of impact and abrasion resistance? Might just use 6 layers of kevlar like BigTwin did, interlaced with glass fibre to make these tank guards.

    That way, no pretty tanks getting scuffed up and all the protection in the world. I imagine that the tank guards would provide structural rigidity to the tanks too?

    ANd lastly, if theres a glass fibre expert in the house, which resin is best to use - the epoxy or poly resin? I dont want to destroy my nice new tanks thanks!

    Cheers, LITO
    #15
  16. StevenD

    StevenD Hmmmm, dirt!

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    The KTM640 has some rubber/plastic protection aftermarket, it is clear soft but rigid plastic. It would allow me to still see the GO!!!!! that dissapeard now.

    I think i like that stuff most compared to the way to rigid carbon.

    The tanks are so strong becouse their flexible imho. So my geus is that it's best to keep the flexibility.

    If i would make one, i think i'l make the point where it bolts on to the lower engine guard a bit stronger though.
    #16
  17. zak0r

    zak0r Adventurer

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    kevlar is just a brand name for aramid which is one of the many fibers used for carbon fiber reinforced plastics (usually called carbon).
    all the stuff u read about kevlar being better than carbon fibre is crap(after all kevlar is one of them!).
    i suggest you get some prepegs to play around with, that way you get the best material possible with an expoxy amound as low as possible, which is cruicial to your project succeeding.
    #17
  18. Renazco

    Renazco Formerly AKA Boejangles

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    Where are you getting this information? I have both carbon fiber and carbon kevlar here in the shop and the fiber is an inferior product.
    #18
  19. Flanny

    Flanny Flanny-it-up!

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    Save yourself the trouble and just order the Carbon Performance parts from Andrew. They are top quality, and have a gorgeous fit and finish. You'd be very hard pressed to duplicate the quality IMHO, especially on your first go with composit moulding.

    BTW - anyone who thinks the carbon guards are for posers doesn't know what they are talking about. The metal bars bend into the tanks then hit hard. Carbon is definitely the way to go for serious thrashing.
    #19
  20. Goss

    Goss LC8 Adventurer

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    The Touratech Kevlar guards are about as close to our BigTwin guards as they come. Not sure what happen to Mr. BigTwin but he made mine and many others guards around here that will probably last the life of the bike. No falling, sliding crashes for me but tips overs galore and they are intact. Scratches I hide with a few dabs of polyurethane when needed. While the black carbon fiber ones look sportbike trick I don't think they hold a candle to the kevlar ones. Which by the way can be made in many colors. Black being one of them. Anyone got the photos that BigTwin posted back in his production days of all those color options?
    #20