There's been a bit of talk about the equality or lack there-of between Hunter Lawrence and Jeremy Seewer's bike. So with just a quick peak it's easy to see that Seewer's bike (on the right) has a different frame with engine mounts towards the outside of the frame, like the standard hangers you'd see on most other brands. Lawrence's bike (on the left) doesn't have these engine mounts as his are off the back of the cylinder head like the production bike. Also, the bikes have different airboots with Seewer's clearly having the wiring for a dual injector system, while Lawrence's doesn't.
Vital MX Pit Bits: 2017 MXGP of the Netherlands