War for Cybertron: Siege Skytread Flywheels

One of the biggest surprises of the Power of the Primes line was the appearance of the G1 Duocon Battletrap in the form of two combining figures - Battleslash and Roadtrap. Before the first images turned up - a remarkably short time before the two figures actually arrived in shops - there had been no hints of Duocons featuring in PotP, but they turned out to be the most innovative offering of the line, which was otherwise a retread of Combiner Wars with added elements of Titans Return.

Of course, making Battletrap surely meant that a full Duocon Flywheels was on his way, to replace the poorly-executed and otherwise redundant Titan Master/Triple-changing Vehicle combination, Skytread, released under the Titans Return banner, right?

Well... Kinda... In fact, it didn't happen at all within Power of the Primes, and when the second Duocon was finally revealed, he turned out to be a closer homage to the G1 toy than Battletrap had been...