[swazi_matt]

that sounds about normal. the older bikes had a 1.4 Bar cap which would boil water at about 230F . The older configuration did have the radiators more exposed to air flow than the 18s though. 1.8 bar would boil water at 242F (engine ice and other coolants boil at a higher temp)

I would say get a fan if you ride terrain that results in bike boiling. the engine temp spikes considerably when it starts to boil, so if you boil once on your regular terain then fit a fan