Given how you will be attacking in melee with touch spells you can afford to drop the strength abit to use somewhere else.
I would keep the bike plus riding skill, no runner should be without wheels or the ability to use them.
His Reaction is 2
He would be better off driving the bike in VR.
1) VR reduces the threshold of all Piloting actions by 1.
2) He can sub in Command instead of Reaction, so a Command 6 Optimization 3 program running on his link (total cost 900¥) allows him to default with 5 dice.
3) run it in hot sim (+150¥) and that's 2 more dice.
4) add Comlink Optimization [Command] (+500) and that's one more.
So, for 1550¥, he's tossing 8 dice on a defaulted test with a lowered threshold, rather than 3 dice by spending the 4BP for a rank of Pilot Groundcraft.
Matrix: It's everywhere you want to cheese.
[natch, if he took 1 level in pilot groundcraft, he could be throwing 10 dice in VR..]
Oh, also, since he's not "jumped in" there's no need for a rigger modification or risk of biofeedback. Remote control for the win.