TIL Bilstein Sells Carbon Fiber Motorcycle Wheels

So who makes these? Bilstein will distribute, but who designed them and made them? Just curious.

 

Durrani.

 

That's interesting....so I'm guessing all the oil and valves are in the left leg and the spring is in the right? Was it Showa that was doing that for a minute with their SFF. I guess removing one entire spring does make the whole apparatus lighter.

 

I looked when they first came one, most of the one ones posted weren't really cracks, it's just dumb people. There was maybe one or two examples of actual problems.

 

I'm all for function over form, but c'mon. The lower stanchions are beautifully machined but the fork cap looks like it should be hanging from a 4th grader's gym locker.

In a market segment that's already overcrowded with functional products, it's going to have to work way better than anything else out there to get away with being that ugly.

 

Or just cheaper to manufacture.

 

Actually the cracking ones are from another supplier, not Thyssen Krupp.

The TK wheels as spec'ed on the HP4 Race are sweet.

 

While their focus is more for the streets than track, I'm winning or podium with their current B16/PSS10 coilover setup. Yes it can be more track focused for sure, but at least for the car it's not bad, and are rebuildable.

Their parent company, thyssenkrupp

 

Ya the TK wheels are pretty damn good, honestly shocked they even bothered making them for such a small market (for them).

 

A buddy put them on his vette and the preload is actually ride height adjustment. Lots of slop if cresting a rise. imo, they are dangerous.

 

That is what preload does, regardless of shock brand or car.

 

Preload preloads the spring correct? Yes, that affect RH
When you "preload" the spring on these BS shocks is does NOT PL the spring. It only raises the car. There is several inches of slop. So if cresting a hill the spring will float. IE. no fucking PL. Get it?

 

So, I'm looking at the pics for the BS EVO T1 shock... has both a ride height AND preload adjustment. They're separate adjusters. EVO R, separate adjusters. Are you missing a part?

 

Probably has helper spring. Spring on top of spring. When extended there is no preload on main spring but when car is sitting on the ground helper spring is compressed and so is main spring.
Helper spring is there to take care of slap. He is probably running to stiff main spring.

 

No helpers, helpers are bs anyway for most apps. It's because they want to have this shock fit a million apps.

 

They are there if you run to stiff springs, or you would have no extension.
If there is no helper then it should be one because it sounds like shock is long and you have negative preload on extension. Preload does work as it should and preloads spring and raises car but only when car is sitting on the ground.
Once car unloads it gets in to negative preload and spring just slaps around. So, he needs helper spring or shorter shock and live without droop.

 

there's something missing here...

 

I mean, I am far from an expert on bike geometry or physics, but I still fail to see how this would be possible without causing the wheel axle to twist when the sprung side would compress and rebound at a different rate than the valved side.

Has this type of system been implemented in bikes before to any measured success?

 

Yes many times. It is all one piece when assembled so it does not matter what is inside each leg.