VTT "Spline Lock" CrankHub Solution & Crank Bolt Capture For BMW N54/N55/S55

We are happy to announce that VTT is offering the only complete S55 crank hub solution that does NOT require the crank to be drilled for pins. VTT's uses their proprietary "SplineLock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank to prevent slippage. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). VTT has spent many months testing, and retesting this design, utilizing well over 10 different samples to come to their final production version.

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