And just to prove the point I now run with 64Ah if I am out for a 100 mile+ ride.It can be a bit addictive....
I started with 10Ah,then 16Ah,32Ah and now I run up to 48Ah which gives me up to 150 miles of easy riding or 100 miles flogging my BBS02 at up to almost 1400W.....
Of course you do need somewhere to mount them all.