John Kavanagh has said the quiet part loudly: Conor McGregor at 155 pounds is no longer the default expectation, and that matters. A fighter who once built his name on moving up and down the divisions now appears to be settling into a very different physical reality, with 170 the more comfortable cut. For McGregor, that is not just a number. It is a map of where his career can still go.
Kavanagh’s message was blunt enough to cut through the usual fog around McGregor’s future. He said it would take something really big to get him back at lightweight and that 170 is a comfortable cut for him now. That is a major shift when you think about the arc of McGregor’s career, because his rise was built on making himself a problem for everyone from featherweight to lightweight. He beat Max Holloway by unanimous decision in 2013, then detonated Jose Aldo in 13 seconds at UFC 194 to win the 145 lbs. title. After that came back-to-back welterweight outings against Nate Diaz, before he dropped back down to beat Eddie Alvarez at UFC 205 and become the first simultaneous two-division champion in UFC history.
A different McGregor picture is emerging
That history is exactly why this is such a notable update. McGregor’s legend was built on the flexibility of his weight, the threat of the unexpected, the ability to make every division feel vulnerable. But the timeline is also telling. His last featherweight fight was that Jose Aldo win at UFC 194. Since then, the story has been less about defending belts and more about chasing the next headline. He boxed Floyd Mayweather Jr. in 2017, then returned to MMA against Khabib Nurmagomedov at UFC 229 in a bid to reclaim the lightweight belt. Now he is scheduled to headline UFC 329 opposite Max Holloway.
That is the real significance of Kavanagh’s comments. They suggest McGregor is no longer being framed as a natural lightweight option who can slide back whenever the moment suits him. Instead, 170 pounds sounds like the new normal, or close enough to it. And once a fighter reaches that point, the whole conversation changes. Featherweight is long gone. Lightweight is no longer automatic. Every matchup has to be judged through the lens of what the body can actually give back.
That does not mean McGregor cannot still be dangerous. Kavanagh’s point about his frame and strength is not empty praise; it is part of the argument for why 170 works. He has the reach, he has the physical tools, and he has already spent enough time around welterweight to know what that environment demands. But there is also a less romantic reading here, and it is probably the more honest one. The most famous versions of McGregor were defined by precision, timing and a ruthless ability to make smaller men pay. If 170 is where he is most comfortable now, then the question is not whether that is respectable. The question is whether it leaves him in a division where he can still recreate the same edge.
And that is where Kavanagh’s second point lands hardest: a return to 155 would need something very big. That sounds less like a plan and more like a special event. In other words, McGregor’s future may no longer be about chasing a class so much as chasing a circumstance. That is a big shift for a fighter whose career was once defined by movement, ambition and disruption. The next chapter may still be loud, but it may not be lightweight.
