However it takes a lot of work to inflate a 2.35 tyre and on the road bike struggles to get over 70 PSI.
You need two pumps: one with a narrow barrel for high pressure road tyres and the other with a wide barrel for high volume MTB tyres. In both cases the longer the barrel, the quicker it will be. So something like the Topeak Pocket Rocket will do high pressures, but the very short barrel means it will take longer, ditto the very short barrelled MTB pumps.
What’s the best CO2 inflator, or is there a roadie pump that will get Conti GP 4000 25s up to 80+ PSI in a flash?
If your bike will accept a frame fit pump, it’s hard to beat the Zefal HPX or Topeak MasterBlaster. Their long narrow barrels will give quick inflation and high pressure.
Edit – If your bike won’t accept a frame fit pump, you could consider the Topeak Speed MasterBlaster which is halfway between the Master Blaster and Pocket Rocket. I think Topeak have stopped making them, but I think you can still buy them at the moment if you hunt around.