If the Albrecht headsets lack a proper noise cancelling mic then they're going to be next to useless over 40mph. If they cost less than around £50 a set then I'm pretty sure that they'll just have a regular mic.
If you are relying on the VOX built into the radio then I'm afraid that's not going to work. It'll trigger far too easily from wind noise which it will then transmit. If the headsets have PTT switches then turn off the VOX and try using those, that should see you to 40mph or so but with deceasing audibility.
Earpiece and mic placement are critical for best performance, especially as the speed increases. This will apply to your set-up and the intercoms mentioned below.
You might want to consider a decent intercom each, Autocom or Starcom are the defacto standard. You can pick up older, yet very useable, versions of these off eBay. Autocom are probably more common. The Active Plus might suit as it's relatively recent but can be had for around £50-£60 or so. Bear in mind that you will need to factor in
the appropriate lead to connect the radio to the intercom.
Effective bike-to-bike radio comms can't be done on the cheap, having said that buying 2nd hand can get you a decent set-up for a fair price.
I've gone from crappy Binatone radios with cheap useless headsets though to a decent Autocom set-up that can see bike-to-bike range of 1 to 3 miles in the real world (ignore radio manufacturers claims of 6-8 miles) and audible comms at autobahn speeds. I managed to buy the above for about £120 off eBay (Autocom, radio and lead to connect) before I added Bluetooth for my phone, isolated sat-nav leads and external antenna kit for the radio.
