The front callipers are made by US brake manufacturer Hayes - who also make callipers for Harley-Davidson. The shots I’ve seen show a Brembo rear calliper. I don’t seem to have any issues with the radial Brembo callipers on my GS or RS, so can only assume it’s a cost-saving measure (It does say that Hayes want to be the number 1 motorcycle brake company in the world on their website, so maybe they undercut Brembo!)
The brakes on my GS were bloody fantastic, so I hope the cost cutting doesn’t compromise on performance.