I've used Metzlers on all my bikes once the stocks needed replacing.
Excellent grip, good on wet roads, and on my X, 18K was about the average miles.
On my Yami, which is a bit heavier, I changed out the rear at 16K.
Also, I've heard good things about Avon's, may try them next.
Democrats & Republicans- 2 Sides Of A Counterfeit Coin.
'07 1300 S XTreme Revolution Intake, Cobra Streetrod Slashdowns, Monster Baffles. 128,788 Miles R.I.P.
'05 1300 S. BAK Slimline, Cobra Streetrod Slashdowns, Monster Baffles, Ultimate Big Boy, Saddlemen Drifter Bags. 6,700 Miles. Sold.
(New) 2014 V-Star 1300 Tourer, Lindby Hi-Way Bar, Saddle Bag Protectors, Cobra Slip-On, Cobra Fuel Processor, Cobra PowerFlo Intake. Wolo Bad Boy,
ED Seat, Yamaha Light Bar.