Are Boardnamics trucks any good?

Yes I did. My math says 40nm if torque before she gives way. Ill get my neighbors torque wrench and wrench on em.

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Instead of doing a set screw, you could use a small press fit pin going through the king pin, this way the bulk of shear will be handled by the steel, not the retaining compound

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Already going to a machine shop tomorrow to sort this out. I have a ton of 3mm dowel pins I can stick in.

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For those of you with BN hangers. Loctite and antiseize do the opposite of each other. Take your time and install cleanly and you won’t have to worry about issues. Small film of anti seize on the inside of the hanger and then bolts.


Clean the inner threads with alcohol and Q tips. Clean the bolt threads with alcohol.
Apply loc tite

Torque. I was hand tightening these to snug before and was coming up way looser than this and had no issues. I torqued to 50 inch pounds or about 4.2 ft lbs, about 5Nm.

Most of what I’ve found suggests around ± 10% 7Nm or 60 in-lb for m6 in aluminum for recommended, not max. But I’m choosing to stay lower. Those values depend on number of factors


:beers:

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Why put the anti seize if you’re going to wipe away with the alcohol? Genuinely curious about this

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He cleaned the inner threads with alcohol, not the hole itself. His way is the ideal, but of course I cannot rely on people being this careful, hense the fixed axles

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Holy Christ
torque wrench settings, Q-tip colonoscopy, dowels for KP? Too funny, they’re skateboard trucks! How bout sticking w something that works and been proven to hold up, instead of “Look at how much math I know?” With all due respect, I don’t want to be Good Will Hunting just to ride my skateboard to the liquor store. The engineering concepts are great and all, and real impressive and superior, and all that. How about some basic real world stuff too? There’s a reason trucks are designed the way they have been, for a while. I hope no one gets fucked up in the experiment


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Nothing is stopping you from buying a set of Caliber 2’s riding them for 200 miles and then replacing them because the axles bent. It’s traditional, and you can make it work for our application.

If you want peak performance, you have to go the extra mile. If you don’t, I hear that the current crop of Chinese pre-builts are decent. They will definitely get you to the liquor store and back.

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Haha
Peak performance
like what happened w my base plate, after a month? Too late, I already tried the peak performance/extra mile crap, and didn’t make it very far. Over complicating a design, doesn’t always equate to peak performance. Sometimes simple is better, and definitely better than glue, and screw in axles.

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This is how you do this properly with shoulder bolts. @Boardnamics is not the only one to ever use shoulder bolts on a truck.
I suspect there are a large number of issues with these trucks that were caused by the user. Kevin has taken a lot of heat for the shoulder bolts- but they’re a component that requires to be treated differently than a fixed axle. Some of the problems were from the bolts and his equipment. But if you want precision components, you need to treat them like precision components. If you want precision components that are reliable, stop looking at $40 budget hangers

And most of the people on fixed axles have been reusing the same nylon lock nut for 50 reinstalls. Fixed axles have advantages, the largest being that they’re more idiot proof. Esk8 riders need to recognize that running speeds of 30mph for 100s if miles per year is not what these components were designed for. Inspect regularly, Install properly. It’s not a fucking skateboard anymore, stop treating it like a toy

Shoulder bolts give you adjustable axle length. Fixed axles do not. If you don’t need adjustable, get the fixed. If you do, install them properly.

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You could treat the SR hangers very differently
 you didn’t have to go through this stuff.

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I don’t really see what would need treated differently?
I only added the Loctite once I had spacer and everything dialed it. Antiseize should be there on the SR too :man_shrugging:t2:

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Pressure seals
Torque wrenches
Antiseize

You dont need to worry about that stuff with SR hangers

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Ah, i don’t own any SR so just curious.
Steel and aluminum, small pocket. That’s potential for corrosion lock on anything right?
I just chose to use the torque wrench to see where my estimated tension was compared to a reasonable spec. It’s not needed.
Pressure seal hasn’t given me an issue

Planning on picking up some SR one of these days

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Unfortunately :pensive:

Yeah the seizing happens but not very frequently and I guess for different reasons here. I guess this is all solved with one basic fix so not much to discuss now that it’s all over.

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SR has a new website

Yup. I won’t miss the shoulders

These are not my first trip down the precision road. I have raced slalom, downhill, etc, and have plenty of precision trucks. All of them from Don’t Trip, Cindrich, and Ronin, have very little maintenance; and solid designs. Obviously, I wanted something more than Chinese turners. These just need a few adjustments, set axles (which I’m getting), and a baseplate w a threaded KP, or ACTUALLY pressed.Take Ronin, threaded KP, that transitions to a twist/press w thread submerged below the flat of the baseplate, and chamfer the entry hole to prevent a stress riser. Ironically while just trying to take off my axle, it seized up. If you have to baby these things, and the KP comes loose so quickly, this design is not very effective. Only reason I’m saying something, is hoping to avoid someone getting hurt. Enjoy em, if you like, but I ride pretty aggressive
even to get beer, and they aren’t working for me atm.

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is surfrodz hangers also aluminum? OR steel?

Alu 6061

Steel inserts for threads

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