just had my 16,000klm service done on my fatboy, always use synthetic in all 3 holes, the good people where i get the services done now use Spectro Platinum 6-speed Transmission Oil for gearboxes on 6 speed bikes,
and so far i'm very impressed with this stuff , noticeably less "clunk" when changing gears , even from cold and much smoother through the gear changes, i could feel the difference after only a few Ks travelled
anybody else use/used it ? what did ya reckon ?