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Quad Speed Discussions about speed skating in quad roller skates.

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Old April 9th, 2011, 03:26 AM   #1
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Default Broken Kingpin

Well, I did something tonight I haven't done in about 25 years. I broke a labeda proline kingpin. It was during a pace line/warm-up so I wasn't going real fast but I managed to face plant pretty hard. I feel like I have a broken sternum
Kind Regards, Craig Whisman
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Old April 9th, 2011, 04:08 AM   #2
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Default Sorry Show Pictures


Sorry about your injury. My broken King Pin came doing nothing so the wheels just came off on my front foot and I one foot skated to the side lines.

Show pictures of your chest when with XRays
and the Broken King Pin/

Now for me I had a bad bad chest bruise and it felt like cracked ribs yet it was only a badly bruised chest. It was definitely hard to sleep for a few weeks yet breathing was not impaired. If you are a Doctor Go to guy, GO. Otherwise check out the symptoms and make a decision on treatment.

Yours in Skating, MA/NY Skating Dave
InDoor Quads: Witch Doctor Wheels, Bones Swiss/Qube-Gold Bearings, Older RollerBlade Wrist Guards -| InDoor Clothes: Cargo Shorts, Sweat Towel
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Old April 9th, 2011, 03:22 PM   #3
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Default Kingpin

Broke mine first time I attempted speed skating in quads since my return. I planted my front wheels, got part way through my stride and it snapped above the jam nut which had loosened on me during the session. I fell forward in what felt like slow motion and my trucks/wheels went sailing down the floor behind me. Scary, but no injury. I crouched as best I could and went down on my right side. Sore for a couple days, but nothing bruised except my ego.

Best of luck in healing up quick.
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Old April 9th, 2011, 04:43 PM   #4
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wow! sorry about your kingpin and chest! I hear brusies actually hurt worse than a break, so you're probably lucky there. Kinda glad you posted about it, since my skates have been ticking me off for weeks, and I've been seriously wondering if I didn't BEND a kingpin, cause they suddenly pull really bad and I think it may be cause of kicking the wall. But not sure... I kept thinking "nah... couldn't be... that's not possible, is it?". Well if you can break one, I guess I might be able to bend one, huh.

Take care and heal fast!
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Old April 9th, 2011, 08:00 PM   #5
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My experiment last summer with high strength aluminum fully threaded stud kingpins on my Omega plate outdoor skates ended after breaking one for the second time. Each break was on the front truck, and going at fair speed. The amount of nylon ground off the plate with the instant friction against the asphalt that this kind of failure produces was significant. The instant braking action this produced was stunning for how fast it sent me right down to the ground. On the second fall I hit my outside chest and thought I might of cracked a rib, but in hindsight, it was more likely that I just tore something, since it healed up to fast for a bone break. However, for about ten days, when I sneezed, the pain level was beyond anything I have ever experienced. It literally felt like a sword was being stabbed straight through my whole torso.

So good luck with your sore sternum and hope it does not interfere with your skating too much. Am I right in assuming the Prolines also use aluminum for the kingpins? If so, they fail with absolutely NO WARNING. They are fine one second and then just totally snap the next second. Steel and titanium will at least bend some first and give some warning before they finally break.

Rollin' on AIR
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Old April 9th, 2011, 08:46 PM   #6
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Red face Sorry To Hear That Craig...

From a lifelong gearhead & current Advanced Metallurgy student I would consider Kingpins a consumable item like cushions or bearings at a Competition Level. If you are skating hard weekly, the money spent for a new set of Kingpins every couple years is a lot cheaper than a trip to the E.R...

Short of X Ray testing "Which would cost more than the Pins" there is really no way to visually inspect a Kingpin for internal fatigue.

Cliffy shattered his Pro Line Kingpin near the micro adjuster not to long ago, fortunately he didn't suffer any injury from it, it's always the front Kingpin isn't it?

Cliff & I both hope you heal quickly Craig & that this doesn't slow down your quest for Gold this year in Fort Wayne!
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Old March 12th, 2017, 05:25 AM   #7
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Default Labeda Kingpin

I just tossed my pro lines in the trash. My left front kingpin sheared off the plate, lost entire truck assembly during sprints. It was the hardest I ever fell, I pulled peroneus and tibial in both legs.
Never broke any Roll Line parts. Wish I had my Navigator back.
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Old March 13th, 2017, 07:57 AM   #8
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Originally Posted by Hard2Pass View Post
I just tossed my pro lines in the trash. My left front kingpin sheared off the plate, lost entire truck assembly during sprints. It was the hardest I ever fell, I pulled peroneus and tibial in both legs.
Never broke any Roll Line parts. Wish I had my Navigator back.
I'm sure someone would love to have bought them off ya.
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Old March 15th, 2017, 11:25 AM   #9
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King pins...they break. All of them break. I'm not sure that I've ever seen one break like that tho. Usually at the lock/jam nut. Let us know what Kurt says.
"Haste makes waste...and talk is CHEAP
Shut Up and SKATE!"
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