@TMH, Thank you so much for your detailed and very helpful review. I have been waiting for and chasing the EVOS daily since spring which has been very frustrating as the biking season rolls by and we don't have the helmets to use. One is finally being delivered today but it is useless without the second which is not available.
And based on your review, with the better intercom and operation on the R1, I just ordered 2 R1'S from Erik's Bike Shops and will be returning the EVO to Amazon. Both Sena and Amazon have had very limited availability on both the R1 and the EVO, so if anyone is looking for an R1, I would suggest Erik's. Again, thank you so much. Looking forward to FINALLY getting and ENJOYING these!
Sounds like Amazon is going to have some 'used' Evo's in stock very soon!
I'm glad you found a pair of helmets and hope that you enjoy them as much as we do.
Another note. For those whose use profile is as simple as ours (2 riders who just want to listen to FM radio or talk to each other, easily switching between the two), the older Sena X1 helmets also work very well (in our experience). They would be a worthwhile purchase if they can be found somewhere on close-out for a lower cost than the standard R1's.
The X1's are different from the standard R1's in the following:
1) The X1's seem like they would work better for a rider whose head shape is rounder, as opposed to elongated;
2) There is no Sena OEM visor for the X1 (not an issue if one is going to adapt a visor like the recommended Bell, above);
3) The control buttons on the X1 are not raised as much nor are they different shapes like on the standard R1. Less tactile feedback when riding (although even the standard R1 doesn't have much, especially when wearing biking gloves, and we find in our use that we only use the center button (which is raised more than the other buttons on the X1) 90%+ of the time when riding);
4) Good thing is that the X1's are compatible with the Sena Bluetooth Device Manager on the PC for updating (ours were at Ver 1.0, while the current is 1.1) and easy set-up;
5) Fidelity through the speakers and sensitivity of the microphone is equivalent in our experience with the standard R1.
If given the choice I would still choose the standard R1 over the X1, but at a close-out price the X1 could be a good buy for a good helmet. Plus they may be available in more colors. I haven't yet tried linking an X1 to a standard R1 for when we have riding guests, but hope to try this soon.