If its a later one with the NVH mod done then its actually very easy to do. Just remove the black liner in the back, take off the stone guard and your done! Take off the bottom drain nut, drain and replace. Then take the 10mm hex nut off and full slowly until it starts to come back out the hole. I just used a long plastic tube and a funnel
No it is an early 2012 one with original "shouty" bevel box. Hopefully when I get back to France in spring, Esprit Competition in Aubagne will have re-opened and I can get the oil changed along with the chassis check/mod, compensator replacement, new FAG rear wheel bearings, new rear hub and if they have been made, MTWV2's magic steel sprocket. I shall be taking a pair of Blockleys out with me as well, as my original Avons are looking pretty chewed up. I live up in a mountain village in the Var and either way up is a series of 6km of non-stop tight bends.