Chaput Truck Alert

**EBasil** · 10-26-2006 03:22 PM

No more pics, please!! The dance of the seven veils is so vulgar if you skip the veils. Same chick, but so much harder to go money... ho ho!!

Just post the CAD-CAM files if you're not just hyping us, Chaput. Oh, we're going to need your Visa card #, mother's maiden name and SSI #. You can post 'em here, it's safe.

Okay, okay. Pics, but only if the Downhill Divas are skatin' on 'em. Barker's cute and all, but kinda hairy.

**wiki** · 10-26-2006 05:05 PM

Forget the downhill chicks----Just the Bush thang !!

**wilder** · 10-26-2006 05:10 PM

man! these trucks sound so nice! i hope that the DH ones will have some of the same innovations!

**ChrisChaput** · 10-26-2006 06:39 PM

Originally Posted by nsc1120

so then the kingpin is just a threaded rod with two locknuts? if so are people gonna get the problem like they did on the old z-roller trucks where they can only get one locknut off the axle, but in this case, the kingpin and the other is just there?

No. I'm going to start namimg the parts, so that we can get on the same page. What I'm calling a Pivot Bearing, others call a (plain) spherical bearing, ball joint, swivel bearing, heim joint, etc. The Kingpin is the larger pin in the middle, and the two smaller ones are what I call Pivot Pins.

Instead of pivot cups and pivot bushings, I have Pivot Pins and Pivot Nuts that secure the Pivot Bearings. The Pivot Bearings are fastened to the hanger. They are the same at each end, so there are two of each. The Pivot Nuts are simply 1/2" locknuts - the same ones that are on your axles. The Pivot Pins are fixed into the baseplates and can't turn or back out. They are only threaded enough for the Pivot Nuts to secure the Pivot Bearings onto the Pivot Pins. These are what holds the hangers onto the baseplates, not the Kingpins. When you take off the two Pivot Nuts, the whole rest of the truck slides off of the baseplate. Nothing falls off or comes apart when you take the hanger off because the Pivot Bearings, Kingpin, bushings, cup washers, and 9/16" locknut are all held together. The bottom cup washer is NOT free to slide down off of the Kingpin, so the tension on your bushings remains unless and until you twist the locknut. The bottom of the kingpin is NOT threaded in the baseplate. There is no head on the Kingpin. The hole in the baseplate that receives the Kingpin is round (not hex or square), and so one must wonder, "How exactly is it that when you turn the locknut, both bushings approach the bushing seat of the hanger?"

The secret lies in another simple part I call a "Cross Pin". It unlocks the "Mystery of the Floating Kingpin". And the solution is once again, simple...

**KennyT772** · 10-26-2006 07:51 PM

so lemme get this strait.

the kingpin is in no way screwed or held into by the baseplate. i am guessing that once the hanger is assembled with kingpin and bushings the end of the kingpin slides into a hole which provides the support for the kingpin. there are no threads on this hole just sidewalls to provide something for the kingpin to push against.

according to what you have provided and what i have guessed in my typing, removal of the pivot nuts will allow complete removal of the hanger with kingpin/bushing assembly still attached.

if i am correct in my thoughts i think i can explain it (correct me if i am wrong). the kingpin is just a solid piece with a nut on either side of the hanger holding the bushings onto the hanger. to envision it take a kingpin you have laying around and assemble it in this order: kingpin head, bushing washer, bushing, truck, bushing, bushing washer, kingpin nut. tighten that down and that is what it will look like. with one pivot pin replacing the current pivot and one more above the axle.
i hope anyone can understand the way i am trying to explain it.

**wiki** · 10-26-2006 08:33 PM

So the KP hole in the baseplate is round with a slot to receive the Crosspin that resists the twisting of the pin which can slide up as the lock nut is tightened....Neat !!!!

Cigar ????

**KennyT772** · 10-26-2006 08:35 PM

i am guessing that is the idea wiki.

my only concern is the abuse on the plate from the kingpin bending against one spot..good thing they are cheap and replaceable.

**ChrisChaput** · 10-26-2006 09:31 PM

You guys are close, but not quite a cigar yet.

There is only one nut on the kingpin - namely the 9/16" locknut on top. The only threads on the kingpin are at the top where the locknut is. There isn't a slot in the kingpin hole, nor is there a slot in the kingpin (although that would work). A square, hex, or D shaped hole has to be machined, as does putting a slot into something. I prefer to do it with simple holes because it is simple, quick and dirty which means "less expensive" in skater speak.

The tolerance between the kingpin and the hole is better than all of the cast trucks (such as Randals) and I've never had a problem with the baseplate hole getting egged. I see no signs of any galling on my trucks. If a problem ever did arise, you could easily insert a steel tube so it would be "steel on steel" instead of steel on aluminum, where the steel would win.

**wilder** · 10-26-2006 09:46 PM

okay, im a visual type person so this is KILLING ME!

when can we get some actual concrete proof? pics!

**small hippo1** · 10-26-2006 10:13 PM

Originally Posted by wilder

okay, im a visual type person so this is KILLING ME!

when can we get some actual concrete proof? pics!

ive been thinking the same thing the whole time this thread has been up.

**SkiHood** · 10-26-2006 10:18 PM

reading all that hurts my head and eyes start to water to much to think about

**ChrisChaput** · 10-27-2006 12:00 AM

Proof? As in, they don't really exist? Wow. And I guess OJ was framed too.

I just took a picture of what was in my trunk, but I'm NOT telling you where I'm parked. BTW, the front truck on the green Ick has 12 bushings on it. Really. The 60/30 setup is for Tight and Hybrid, the 45/30 setup is for GS. I'll be swapping these baseplates out for 55 and 25 degree plates next.

Chris Barker called and told me his first impressions. He can't believe how much traction they provide as a REAR truck. Until now, a PVD was the only decent "non-offset" rear truck. Offseting my axles in line with the kingpin wouldn't change how they turn - it would only change the height and wheelbase. Another observation is that the front steers nicely and easily because the hanger isn't loading the bottom bushing under the weight of the rider, in addition to the compression from the top bushing (and without a big spherical bearing in between the bushings). As a result, he doesn't need to steeply wedge the front truck as he does with other styles of trucks. The others are hard to get to turn quickly enough. With mine he is going to use a shallower angle in the front and get more drive from his turns. I know it seems kind of strange, but the trucks steer so efficiently, that we'll sometimes want to take steering OUT. It's easy to do with lower baseplate angles and harder or wider bushings. I hope he rides them at the Dixie Cup in 9 days...

**gorillabiscuits** · 10-27-2006 12:03 AM

as Borat would say... wow wow weeeee woowww!

**pithaya** · 10-27-2006 12:19 AM

Imagine if Bones Hardcores where your favorite bushing.. you would need 30 dollars of bushings per truck!!! Your trunk is lined with soft something to carry around your skateboards?? cool... I'll just stop wondering and wait for someone to buy them and post about their awesomeness and a zillion pics in every angle. And specially about how they grind..

**small hippo1** · 10-27-2006 12:28 AM

those are sick

**ChrisChaput** · 10-27-2006 12:31 AM

Originally Posted by pithaya

Imagine if Bones Hardcores where your favorite bushing.. you would need 30 dollars of bushings per truck!!!

Actually, just one set of bushings and an exacto knife would be enough. Oops. Did I just give away another secret?

**pithaya** · 10-27-2006 12:38 AM

YOU DIDNT!!! Oh my god!! you are giving away too many secrets.. keep it mysterious.
I was suspecting you were playing mind tricks on us... Will your Abec11 bushings be competitively priced?? less or more expensive??

**Dash** · 10-27-2006 12:56 AM

Those look very well made. Very cool design.

**Basch** · 10-27-2006 03:04 AM

Originally Posted by ChrisChaput

Actually, just one set of bushings and an exacto knife would be enough. Oops. Did I just give away another secret?

Not to hag the trucks (look great) but isn't that a whole lot of messing around when you're tuning the bushing setup.
I for one don't think I have the patience of cutting up all kinds of different bushings to finetune it.

**Momona Boe** · 10-27-2006 06:01 AM

So Chris, since the kingpin is independent of the pivots, it's pretty much used as a damper, yes? Looks like anything could be used in that situation for "bushings", yes? Urethane, rubber, springs, gel, wolverine spleens - correct?

oh, and it would've been really fun to watch everyone freak out and make a zillion posts if those trucks would've had Hot Spots or something on 'em

See ya' in NC