So where is this going please?
Credible options suggested so far have been (all to go into a TRF501X which is a very tight fit on the inside - soon to have a 87T spur installed):
- LRP Sphere 2007 with X11 motor (5.5)
- GTB system (5.5) with a 25mm fan instead of the 30mm one mounted on the side of the chassis
Thanks for everyones contributions so far.