Don't have the money at the moment, also the engine's now built, and the standard ones seemed ok with the weight of the standard ones, and the 10.5:1's are lighter.
I'm also not sure which model these are for, so I asked and he said:
Dear tony.mon,
Hi mate, I think these are for the vtr firestorm. I picked these up from a mate who's having a clear out. I'm happy to measure them up for you if that's any help. Cheers, Chris.
- fev17
Dunno if I want to shell out and find out they're for an SP1 or something.....and I couldn't find a price for these on Arrows' site. Maybe they're a one-off, or discontinued.
Mind you, I wonder what else the "mate" has got?
It's not falling off, it's an upgrade opportunity.