Well my first set of Kenda K270 tires wore like iron. Street, gravel whatever they did great.
Me, too, moriver; and--the second set and the third set as well!
Sorry you've had a bad exposure to that product; in your position, I'd look for something else, too.
Without experiencing the 244s, I've run K270s extensively on both KLR250 and KLR650 (3.25 X 21 front; 5.10 X 17 rear don't know if the "oversize" contributed to servicability). No problems (had to space KLR250 exhaust outboard with a washer or two for clearance). Fully serviceable and acceptable 50/50 tire in my experience.
Rode 'em on The Tail of the Dragon, on the Hatfield-McCoy Trails, completed a couple of Shenandoah 500 Dual-Sports on 'em, with lots of garden-variety pavement in between.
Not to say that 244s are not superior in many ways. Possibly, I've been fortunate in choosing K270s from "good batches," the quality may vary from run to run.
Now running Kenda Trackmaster IIs and Continental Trail Attacks on 250 and 650, respectively, for their specialized capabilities. Yet, if I wanted an affordable 50/50 tire, would chance K270s again.
That said, I've read lots of good reviews from riders whose opinions I respect on 244s. Would consider 'em favorably if the opportunity arose. Let us know how they work for your riding style and environment.
DISCLAIMER: No financial interest in Kenda.