Q. Is this Engine heats up a lot - Radeon?

Yes, I own a 2019 BS-IV model of TVS RADEON. Initially when I took it to long rides (odometer reading of 2500 kms), Its pick-up drops drastically after continuous riding for 70 km at speeds as high as 80-85kmph.Tried changing Engine Oil to Motul Mineral Oil to eliminate poor Oil quality factor.... Noticing Slight difference in heat issue but it is still there. Will try with a fully synthetic one and update soon.

Yes, I own a 2019 BS-IV model of TVS RADEON. Initially when I took it to long rides (odometer reading of 2500 kms), Its pick-up drops drastically after continuous riding for 70 km at speeds as high as 80-85kmph.Tried changing Engine Oil to Motul Mineral Oil to eliminate poor Oil quality factor.... Noticing Slight difference in heat issue but it is still there. Will try with a fully synthetic one and update soon.

Not at all. This bike is not made for continuous run at speed 80-90. Only fools will do that. At speed 60 this bike gives smooth performance. No issue. It's a commuter bike and not a racing bike. Does not heat that much if you handle it in it's capabilities. O own bs VI disk model.