[RC-Monster Mike]

" am deciding between an RC Product Designs motor mount, or the RC Monster motor mount. As I have been told, the RC Product Designs motor mount can take more pinion options in the lower range (down to 12T), but with the 1512 2.5D motor, I don't think its a concern I believe."

All our Motor mounts accept 12-25t pinions on the stock spur in theory - FYI. Any "more options" that may be available will likely be useless, as I can't see running a pinion(or finding one) outside this range. The limiting factor on the RC8 will be the rear chassis brace and not the motor mount itself (RC-Monster or RCPD most likely), particularly with a finned Neu. The RC8 uses truggy ratio front/rear diffs anyways, so actually using anything near a 12t would be uncommon in most cases(with 1512/2.5d especially), but the adjustment is there onall of our mounts. :)