Triumph Explorer / DMC M72DX Sidecar Rig - I found my dream rig, now please help me get it together!

Discussion in 'Hacks' started by TripleDaddy, Sep 13, 2020.

  1. TripleDaddy

    TripleDaddy Hoping my skills exceed my horsepower

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    From Klaus at HyperPro:

    "The OEM spring is 632 – 706 lbs/inch

    The Hyperpro replacement spring is 786 – 1201 lbs/inch

    Considering the ratio of shock travel to wheel travel, the Hyperpro spring can carry 190 lbs/inch compression more than the OEM spring so it should be good.

    The part number is SP-TR12-SSB003 = $ 139.00 in the standard Purple color and $ 149.00 in Black."
    #81
  2. DRONE

    DRONE Dog Chauffeur

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    You know the saying "Close only counts in horseshoes"?

    Dave is right when he says the correct way to do this is to measure everything--sag, weights at each wheel, load, type of riding, etc.--then send it all off to Klaus for a custom spring.

    But I think the game we're playing here actually is horseshoes. Close is good enough. Especially if it only costs $150.
    #82
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  3. TripleDaddy

    TripleDaddy Hoping my skills exceed my horsepower

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    Chefchil has a nearly identical rig and is likely going to have a custom shock made. I'm leaning towards just buying a spring and then we can compare notes when we're both done.
    #83
  4. Strong Bad

    Strong Bad Former World's Foremost Authority Supporter

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    Small changes to be precise with your suspension tuning is unlikely to produce a difference to 99% of us would notice. Unless you are the princess who feels the pea under her mattress, but even then would it affect your performance?






    BTW, research shows that 96% of all statistics are made up, which is up a full 4% from last year.
    #84
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  5. chefchil

    chefchil Adventurer

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    I turned 61 last month. There’s one small thing I learned in those few years. Every time I tried to go cheap, it always seemed to come back and bite me in the ass. Why? Because the cheap stuff didn’t work for me in the end. So, I threw good money after bad, and it still wasn’t what I wanted. So what happens? I sell the item for way less than what I paid. From motorcycles, cars, guitars, Cadillacs, (Hillbilly music) upright basses, amplifiers, etc etc etc and all kinds of crap in between. So, I figure if I have spent 20k plus on a sidecar rig, should I then go ahead and go cheap as possible on the suspension? F—k no, not this time. These suspension specialist guys at Motorcycles Unlimited are having a Penske custom shock built. Don’t know exact model number yet. But they did get every single bit of information Drone mentioned above. It’s $1300. Yep, that’s right, mofo! But my hope is it will be right the first time. The first damn time, not the second, or third, or... But, hey don’t listen to me. All I know for sure is the Plumber’s Credo: Shit rolls down hill, and payday’s on Friday.
    #85
  6. davebig

    davebig Another Angry Hun !

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    He's almost right if your going to throw that much money at it get decent stuff ! But why over complicate it so much ?

    The Dutch build more modern sidecars than anyone and have a huge store of information,Klaus at EPM works with Hyper Pro and has a pretty decent database on what one needs based on weight of rig and weight at each wheel.
    Springs hold the vehicle up, shocks damp the springs .
    Do the people at Motorcycle Unlimited have allot of sidecar experience ? When dealing with Klaus and Hyper Pro your wanting their sidecar experience.
    High Octane bought from Ted Porter, my first set came from Ted they where completely wrong, Ted has more experience now.
    It really doesn't matter about brand if it's of any quality at all, sidecar and tug suspension really does not move much, it can't or they handle like shit and sway allot, decent damping and rebuildable shocks are what's needed.
    Don't want to spend that much weigh the rig and buy just a spring it'll be allot better and the shock may work fine as long as it has some damping.
    Put the rig together with tools and the gear you take with you most of the time a tank of gas etc get it weighed with driver and gear and get a recommended spring from someone with experience, DRONE, Stroker,Strong Bad,AirheaDan, Davebig and bunches of Claude's customers we can't all be wrong. WTF
    #86
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  7. chefchil

    chefchil Adventurer

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    Thanks for that righteous f—ing advice and input. I search these forums all the time trying to get some knowledge. You seem to pop up over and over and I wade through all your smart ass wise cracking bulls—t. You basically tell people asking questions crap like, “Damn you’re a Dumbass for asking that! What a stupid f—ing question!” So here you go, Slick. I don’t give a flying f—k what you think or what you think you know. BOOM. And let me ask you this, Mr. Sidecar God, how much money have you thrown at sidecars in your life? Ok, I’m done. F-OFF.
    #87
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  8. Strong Bad

    Strong Bad Former World's Foremost Authority Supporter

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    It's spelled FUCK, if you are going to use it, spell the fucking word out, cuz you ain't hiding a fucking thing with spaces dashes or asterisks!

    It's really common in the motorcycle world for a suspension guru who builds or tunes shocks for a specific type of usage to try to branch off into other areas with little knowledge of the requirements needed for those other areas. A guy who builds/tunes road racer shocks gets in over their head in a hurry doing MX shocks. There are even specialists that leave the MX guys behind when building Supercross stuff. We see it all of the time in desert racing when MX guys try to cross over. Sidecars definitely complicate things as the way the shock loads aren't just front to back but have side load forces across the three points of contact. If you've got one of those slick street machines giving your rig's weight at each wheel to someone who specializes in road machines should be able to handle what you need. The Penske shock is a great shock and yes they are big bucks, but if were me spending that much money, I sure wouldn't have it be the first shock your supplier has built a Penske for a sidecar.

    Back when I had my shocks built by Works Performance, my buddy Gil Vallencourt (owner) and I sat down and discussed how exactly I would be using my rig most of the time and what sort of extremes I could expect. After that, we got out the scales and weighed all three corners AT THE SAME TIME. Gil was not only a fellow Baja racer, but also built shocks for the MX legend Roger DeCoster. Gil also raced his Norton Manx in vintage races in the USA, OZ, and the UK. Gil decided that heat build up would be my biggest problem with my projecting using my rig on a lot of very long dirt roads. He though the rear would have the biggest heat issue so he a remote finned reservoir to keep it cool.

    I guess what I'm trying to promote here is that choose a shock from a builder who has experience with type of usage you expect. Either that or be close enough to your shock guy so it can be dialed in and have the time to go back and forth while they learn on your rig.

    Gil Norton Manx.jpg
    Gil and his Manx, RIP my friend.
    #88
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  9. davebig

    davebig Another Angry Hun !

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    Your correct I actually am a minor deity but not about sidecars. I'm not responsible for your poor self esteem or your inability to stop allowing how you feel to dictate your behavior :fpalm you have a good evening now :-).
    #89
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  10. Strong Bad

    Strong Bad Former World's Foremost Authority Supporter

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    Holy crap Dave, you ain't even up to yer ass in snow yet and you are already grumpy as hell. Take it easy on the n00b, he is a long way from figuring out where each of our points of view are coming from, besides he does'n know you mentored Professor Irwin Corey who was The World's Foremost Authority.

    irwin-coreys-quotes-5.jpg

    Maybe some of you are old enough to know who he was?
    #90
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  11. chefchil

    chefchil Adventurer

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    I got to admit, that makes sense. Thanks for taking the Fucking time to respond. Nah but Seriously, I mean that.
    #91
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  12. chefchil

    chefchil Adventurer

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    Dave? Dave who? Tell ol’ Dave he can git on dim.... I don’t go around on forums fucking with people. I just search trying to find some answers. So, in an hour or two of searching the same ahole keeps popping up over and over putting people down, telling them how stupid they are, and generally being a dick, it just gets old. So, I said something, just couldn’t help it. I don’t know the MOFO and never will. And could give a fuck less. I blocked the old prick so I don’t have to waste my time reading his crap. Show a little more respect to people you don’t even know. You bad ass ol’ Keyboard Warrior. “Shit rolls downhill, and payday’s on Friday...”
    #92
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  13. propforward

    propforward PIE!romaniac

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    We are up to our arses in snow. It came early this year. :bluduh

    Oh well. Lots of time to get bikes and rigs tuned up in time for spring in 6 months.

    :waysad
    #93
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  14. davebig

    davebig Another Angry Hun !

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    I wonder where chefchil wants the rent sent for my living in his head ? If only Luke where alive to inject a little wisdom :-)

    TrippleDaddy I'm not one of your fans but the information I have given you is helpful if you want to sort out your sidecar setup, estimating weights is largely a waste of time. All this extra bullshit is what's wrong with internet forums !

    All men are frauds. The only difference between them is that some admit it. I myself deny it.

    H. L. Mencken
    #94
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  15. High Octane

    High Octane Long timer Supporter

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    About time some shit gets stirred up around here. I thought maybe I should try to piss off a couple inmates just to wake things up.
    #95
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  16. norton(kel)

    norton(kel) Long timer Supporter

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    Fuck off Leigh:imaposer
    #96
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  17. High Octane

    High Octane Long timer Supporter

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    Your going to have to be more subtle.
    No one will believe that. There’s an art to proper trolling.
    #97
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  18. norton(kel)

    norton(kel) Long timer Supporter

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    OMG, just brought up the forum tonight and read today’s posts and was laughing so hard my eyes were watering. Had to chime in Leigh.

    Sounds like a bunch of us old timers around a campfire after a few to many beers.:fpalm
    #98
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  19. High Octane

    High Octane Long timer Supporter

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    I could use a good campfire and beers about now. Get blackie back together and ready for the spring.
    #99
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  20. Bobmws

    Bobmws Curmudgeon At Large

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    Here's a little anecdotal 'evidence'. I contacted Klaus for shocks for the K12RS/Hannigan rig. Hyperpro on the bike, YSS on the hack.
    Received & installed them, took the wife out for a ride without her knowing about the new suspension.
    10 miles down the road I hear:"What did you do? Everything is so much smoother"!

    Oh yeah Chefchill, as a licensed WWT operator shit doesn't roll downhill until you pump it to the top. I do know Jack Schit.
    PS. Have you met Tur Tal yet?