The latest reuse/remold of the Transformers Studio Series Junkion motorcycle mold is Scrapheap. His transformation is a little different but the real story is the remolded chest. On my copy, it is almost an impossible bear to navigate. That said, once managed, both modes look terrific and the joints are tight.
https://youtu.be/FR0Yi5Zcmbw
https://youtu.be/FR0Yi5Zcmbw
Source: Cybertron