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Thread: HONDAs' Abandonment of the dual piston caliper??

  1. #1
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    HONDAs' Abandonment of the dual piston caliper??

    I've always been a fan of the 85/86 250R calipers - especially the front with it's composite or plastic dual pistons.

    Since then, they have made heavier racing machines and went back to a single piston caliper. Although it is larger in diameter, it doesn't seem THAT much larger enough to replace the dual setup.

    Although the front caliper on the 350X and 250R is a dual piston, the 200X outdated single caliper seems just as effective? And it's near identical to the newer CR and CRF lineup calipers. It sure seems to lock up fairly easily and if you ride a newer dirtbike (although much lighter) that front tire locks up like a SOB.

    I have some 250R calipers I planned on powder coating, rebuilding and installing on the 200X and 350X that I currently beat the snot out of but now I question whether it's any advantage.

    I can buy a brand new 450R single piston caliper ready to bolt on for under 100$ all day long and I may just auction off all the 250R calipers I have. The parts will be available for 20 years and I won't have to buy all the special pins etc etc....

    Any thoughts??
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  2. #2
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    i have been makign a few plates to use the 450r rear master for the 350x's so u can run the entire brake set up off the 450r.
    ok here goes, 85 atc70,2 84 atc70's 83 alt50,83 atc110 , 70 us 90 parot green, 85/86 350x garage queen, stock rider 85 350x, project 85 350x 85 250r drag bike, 2 85 250sx's, alt185, , scat tracker?99blaster,85 250r rider,85 250r ice racer project ,93 kx500,99 xr200r, 91 dr250s ,89 lt500 quadzilla,88 lt250quadracer, 88 trx250r race full on race quad,, 01 yamahakodiak400, kawaki kd100,lt50 for my doughters,93 300ex, 230 quadsport, lt185, lt250 quadrunner,84200s, is that enough?

  3. #3
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    Quote Originally Posted by brapp View Post
    i have been makign a few plates to use the 450r rear master for the 350x's so u can run the entire brake set up off the 450r.
    Well when it's done send me a pm.

  4. #4
    sgp56's Avatar
    sgp56 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Keep the original dual pistons on there. They might become "rare" one day.Keep it classic.
    1985 Suzuki ALT185 (sold)
    2000 Honda XR100R (FOR SALE!!)
    2004 Suzuki JR80
    1983 Honda 200X(gonna ride it till it dies)
    1989 Yamaha Blaster(sold)
    1984 Suzuki LT125

  5. #5
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    personally i like and think the dual piston calipers work better. i replaced my single piston caliper with a dual caliper piston on my 200x and think it actually is better. but again we are talking about the rear caliper on the 200x thats not all that best to begin with.


    my opinion is dual is better depending on what age of caliper you are comparing it too. now a new single piston may be better that a dual piston caliper ?










    ooo by the way happy b-day
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!

  6. #6
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    They wouldn't be original anyhow.

    honestly could care less about "OEM", "original" etc etc. I never sell my stuff anyhow....I just want stuff to work that I can rebuild and get parts for for years to come until I can't ride anymore. I'm speaking about the rear brakes anyhow where they aren't stock on a 200X or 350X so I'd have to build brackets anyhow be it a 250R or (newer 450R) swap....

    I just don't think the dual piston setup has any advantage but has a disadvantage in being rare and harder to find in good shape or getting parts for it.

    If thats the case, I'll PC and rebuild the ones I have, auction them off and run the 450R stuff. Les than 100$, how the F can ya beat it??

    I do DIG those 250R plastic pistons on the front caliper though

    Guys that "RIDE" aren't so worried about year/item correct. We wabt stuff that works and can be rebuilt without weeks of searching for used EBAY garbage
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  7. #7
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    Quote Originally Posted by Dirtcrasher View Post
    T
    Guys that "RIDE" aren't so worried about year/item correct. We want stuff that works and can be rebuilt without weeks of searching for used EBAY garbage



    aaaaaaaaamen to that !!!!
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!

  8. #8
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    Quote Originally Posted by brapp View Post
    i have been makign a few plates to use the 450r rear master for the 350x's so u can run the entire brake set up off the 450r.
    chalk me up for one of those as well as the headlight guard brappy

  9. #9
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    kinda like this plate?

    its simple and works great
    Attached Thumbnails Attached Thumbnails small master cyl.jpg  
    80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
    90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
    00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
    2012.....Replaced the 350x motor for a 444cc YZ426
    WWW.HREATV.COM

  10. #10
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    yep prett ymuch my prototypes are made from steel but i need to find soem nice aluminum 1/4 inch plate so i can polish them and a little easier to work with also.
    ok here goes, 85 atc70,2 84 atc70's 83 alt50,83 atc110 , 70 us 90 parot green, 85/86 350x garage queen, stock rider 85 350x, project 85 350x 85 250r drag bike, 2 85 250sx's, alt185, , scat tracker?99blaster,85 250r rider,85 250r ice racer project ,93 kx500,99 xr200r, 91 dr250s ,89 lt500 quadzilla,88 lt250quadracer, 88 trx250r race full on race quad,, 01 yamahakodiak400, kawaki kd100,lt50 for my doughters,93 300ex, 230 quadsport, lt185, lt250 quadrunner,84200s, is that enough?

  11. #11
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    I had to ressurect this thread. IMO the dual piston calipers were/are better than single piston calipers. They exert more force because of the combined piston area. It also allowed the caliper to be shorter in height than a single piston caliper of comparable strength. When it comes to locking up the tires, that doesn't really mean much. Drum brakes will lock up a tire. But they're more prone to brake fade as are single piston calipers. You have to ride them longer to get the same effect as a dual piston caliper. We're talking about gradual braking here. It's pressing on the pad which in turn is pressing on the rotor from 2 points rather than one. There's a reason why all your new dirtbikes are running dual piston calipers now instead of single. Dual piston calipers are doubly as prone to failure and doubly expensive, that's why Honda abandoned them on their ATVs. ATVs are designed to be trouble free longer than MX bikes and cheaper to build. It's not cost effective for them to have brakes like that on an ATV. Bottom line.
    ADMIRIN' BOOBS AND BLASTIN' NEWBS

  12. #12
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    The smaller pads that fit in the single piston caliper suck! The only advantage to a single piston set-up is cost and size- as far as space goes.
    The person who says it cannot be done should not interrupt the person who is doing it.


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  13. #13
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    I noticed this same thing when I built my 450, so we went with the twin piston caliper (only because its a 3 wheeler) If I was building a quad I would never use a twin piston caliper. Added weight and friction are simply not necessary to slow down a quad, especially when you have front brakes that can stop you easily and never fade.
    2007 YAMAHA YTZ450 went to a great home RIP Sam


  14. #14
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    Good stuff guys :

    Thanks for bringing it back Ninja
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  15. #15
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    Ok..great points made above. So what options do we have? Are there any systems (like from a 450R, 300EX, etc.) that bolt on to a 350X, 250R, or 200X without mods? If not, then what are the easiest systems to retrofit.

    I have a NOS 350X caliper waiting to go on my project 350X....should I sell it?....and use the money to convert to a "new" system from a current model? What about the front?

    By the way, I'm a rider.


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    86 350X - Full Restomod
    85 250R - Legend
    85 Big Red - Clean Original
    85 Big Red - Custom

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    85 Yam Badger 80 - Kids
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