My 500 has Battleax BT 45's.. listed as sport touring, fairly hard, but for a new rider...shes not gonna be leaingn a 500R to the edge.... Long as she rides in dry weather, they grip as far as i feel comfy on the 500 doing. Tire will last ya at least 8K too if not a lot longer, ive had em on mine for over a year and they arent worn at all, but that bike has only seen about 2K mi or so since the tire change, all the miles on on my 1000.
But its a good starter bike and tires are cheap compared to pure sport..
Cant go wrong with BT45s.. but u might wanna actually go like BT20's if u want more grip... Wont last as long, but safe comes beofre wear and tear and cost.