Sidecar bumpers

Discussion in 'Hacks' started by hsblue, Oct 19, 2013.

  1. hsblue

    hsblue Been here awhile

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    They look cool. Here is Davebig's rig

    [​IMG]

    There are some more substantial looking bumpers. My question is do they do any good?

    Maybe they save the paint if I smack a garbage can in the garage. But if a soccer mom on her cell phone, lets her SUV drift across the center line, there isn't a bumper in the world that is going to save the sidecar.

    What about the in between stuff, boxes falling from pickup trucks, dogs, small deer, parking lot fender benders?

    I am coming from the idea that BMW Airhead crash bars are known for preventing scratches on $50 valve covers but bending the frame.

    Henry
    #1
  2. eldomike

    eldomike Who Cares

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    My Hedingham has built in bumpers :D

    [​IMG]
    #2
  3. davebig

    davebig Another Angry Hun !

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    I'd have a hedingham rig in a NY minute, I think they are as handsome as a sidecar can be.
    [​IMG]
    Bent bumper that got cut in one place straightened and welded should be back from powder coater Mon. I wanted to build a heavier one but my welder liked the way the deer rumpled that one up and not the tub nose, it collapsed downward and didn't toss deer over the top possibly a good outcome.DB
    #3
  4. Dan Alexander

    Dan Alexander Ride Far - Ride Fast

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    It's a question I've been wondering as well. Some are part of the frame and some just bolt on through the body under the nose. Looks like the Ural / Dnepr ones I've found googling around all mount through the body so won't be as protective. Maybe there is something to be said for having a crumple zone here though?
    #4
  5. davebig

    davebig Another Angry Hun !

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    That's all mine does, it's more a light bar than bumper, one bolt on nose and two on the bottom,but since it stands off the body everywhere,that gave it room to move around and absorb the deer hit.I had a Ural before and the bumper they sold for them is allot stiffer.DB
    #5
  6. Wolfgang55

    Wolfgang55 Long timer

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    Looking at your rig.....
    I can only think about how very fortunate you & your dog were to have so little damage left behind.
    Have you considered renaming your rig ?
    #6
  7. Dan Alexander

    Dan Alexander Ride Far - Ride Fast

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    Yeah, you'd figure that a really solid frame mounted bumper would have transferred all the force right through the bumper into the car and then bike. Then what do you think would have happened? Worse damage to the bike and car or to the deer?
    #7
  8. davebig

    davebig Another Angry Hun !

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    Damned if I know, but Claude has several customers who've had major accidents where the bike got totaled and the chair moved on to the next rig.
    I think I was lucky that the deer was a medium sized buck going full bore and he was airborne when I hit him and I had more momentum and went over him rather than him over the car.DB
    #8
  9. Abenteuerfahrer

    Abenteuerfahrer Deaf on Wheels

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    Me thinks that a solid main frame one-unit bumper like the Hedingham would of course be immensely strong but the transfer forces it would transfer to the subframe/bike during an accident could be more problematic to the bike. I would agree with Dan!

    What we currently have is all in order to save weigh and $$.

    CMS aluminum/steel body is immensely strong; can indeed act as a crumbling zone with it's faux bumpers. So does DMCs heavy fiberglass body and faux bumper. They're both designed (?) to somewhat downward deflect an impact by their curved noses. Currently our front bumpers serve nothing more as lamp holders; scratch protectors; stone shield holder, etc. One must indeed be appreciative of CMS wide step on platform that also protects the fender very well.

    cheers...
    #9
  10. Dan Alexander

    Dan Alexander Ride Far - Ride Fast

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    Some cars that have the Ural 'look' have the front bumper attached as part of the frame. I was wondering how to do that to mine but maybe I'm better off to just use the bolt-on variety.

    [​IMG]
    #10
  11. Wolfgang55

    Wolfgang55 Long timer

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    The actual sidecar body design we are talking about here it the Ural, right ?

    After all we have many designs out here & some directing the air flow upward.
    While some have a bow of a displacement ship, the air flow is cut from right to left.
    So is that fat round nose (ural) a better design for surviving a wild life encounter ?

    The largest thing ever hit w/ my earliest Ural was a wild turkey in AR.
    #11
  12. Abenteuerfahrer

    Abenteuerfahrer Deaf on Wheels

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    Hallo Wolfgang..

    First we we're primarily talking about bumpers, which are mostly decorative, then I added the idea that the design of the Ural/+clones by observation do give a downward deflective look of things that might come underneath it; small animals; sage brushes; tall grasses; knee height bushes, etc. Not talking about a Moose/ Cow/ Mustang, etc., compared to others that might mow, push, or even throw scrubs over the bow and onto you!

    Here's my former Ural clone...

    [​IMG]

    [​IMG]

    Just an abservation.

    cheers...
    #12
  13. davebig

    davebig Another Angry Hun !

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    [QUOTE

    The largest thing ever hit w/ my earliest Ural was a wild turkey in AR.[/QUOTE]

    I've had several close encounters with wild turkeys on the road as well as on this forum, though the ones on this forum are very domesticated some even educated:lol3 But really I managed to dodge one flying but he missed landing in the woman friends lap by inches. Turkey buzzards and their better looking cousins the bald eagle have also been involved in close calls, the eagle had to drop a raccoon carcass and I was glad he did.DB
    #13
  14. Wolfgang55

    Wolfgang55 Long timer

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    Adenteuerfahrer, you're right, sorry for the temp. subject hi-jack.
    #14
  15. claude

    claude Sidecar Jockey

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    I think the perimeter sidecar frames such as the Heddingham, Watsonian and the Vetter terraplanes were/ are the best bet as far as true bumpers go. We have done our bumpers as a frame mount as well as a body mount but it seems the body mount has worked fine for it's purpose. Yes, it does deflect things and also does create a crush zone of sorts. The addition of what we call a stone deflector on the front underside of the body also adds some beef up front.
    We have also done a 'bumper' that actually extended front to rear underneath the body that had a roll bar incorporated into it.
    As far as roll bars go I think Craig Vetter probably had the best design out there on the Terraplanes. Not counting the full roll cage design that Side Effects did on Murray's Triumph powered outfit.
    Most roll bars are decorative. Most bumpers are decent deflectors and great driving light holders. :D
    #15
  16. walkingbear

    walkingbear Long timer

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    I was at my welder today to figure away to strengthen the sidecar

    We are thinking of adding a 1/8 alum plate under the sidecar and and extending and curving it up to the nose. One inch spacer between plate and the fiberglass body. Could be pretty strong off road..
    #16
  17. Abenteuerfahrer

    Abenteuerfahrer Deaf on Wheels

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    Right Claude...:thumb

    Regular diamond aluminum sheets you can buy locally, then conform to the bumper frame/body mount would do wonders against stone chipping, etc.

    For you DB: -Eine Steinschlagschutzwand !- :D

    [​IMG]

    Side Effects full bumper and roll cage..

    [​IMG]

    cheers...
    #17
  18. davebig

    davebig Another Angry Hun !

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    Danke Elmer, aber ich bin nicht eine echte deutsche nur drei forths, 3 Gro├čeltern, wo Einwanderer, war das mit dem Nachnamen Englisch vielleicht anglo saxon.he war ein Schmied. DB
    Thanks too Google translate
    #18
  19. claude

    claude Sidecar Jockey

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    I would be tempted to maybe add a rubber strip around the perimeter or something to keep it from flailing with mud...or maybe not ? Just thinking out loud.
    #19
  20. Abenteuerfahrer

    Abenteuerfahrer Deaf on Wheels

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    Oh, Yes, Claude that had been my thought long ago before tackling the TAT, but never came to it. The space between the plate and body did indeed collect mud; scrub; but most of all those hundreds of pesky grasshoppers of the Oklahoma plains.:eek1. Cleaned the stuff before selling my rig to Duncan :deal.

    cheers...
    #20