Tire advice needed-17" supermoto/street

I got back into riding a year and a half ago after a long hiatus. I bought a Suzuki DR350 with Kenda K761 dual sport tires on the stock wheels. Then I bought a set of supermoto wheels with Michelin Power Cup tires and have been riding those around. The grip on asphalt is awesome with these trackday tires, especially once they get up to temperature. A busy summer means my tires are all nearing worn out, and the sum total of my recent experience with modern tires are these two totally different sets I happened into.

I am going to stick with the two wheelsets, skinnier 21"/18" for offroad, and wide 17" for the pavement. I already bought some Michelin T63 for a more aggressive dual sport tire for the offroad wheels. Now what to get for the road? Do I need a trackday tire? Probably not, but I would like to do a trackday or two, and I loved the grip. They did wear quickly and take a bit to come up to temp. I push it more when dry, and in the wet I become ultra-ultra cautious. I am partial to Michelin, but am totally open to other brands.

My motorcycle buddies at work are a bit freaked out that I rode the Power Cups that came on the supermoto wheels for a year, and are pushing me towards the Michelin Road 4. There are a few reasons I second-guess them: 1) While not exactly the same, I have driven R-comps on a car on the street and am aware of the tradeoffs. 2) They are VFR/ZRX1200/Bandit 1200 guys, and doing hundreds of miles a day on 500 pounds with 120hp is a little bit different from farting around in the twisties for an hour or two on 300 pounds with 30-ish hp.

When motorcycle tire manufacturers say, "Designed for the weight and power of today's sport-touring motorcycles" is that like car tire manufacturers saying, "Made for today's high-powered European GTs and sport sedans?" In other words, a performance tire with a high speed rating and some concession to comfort, but just fine for your Corolla if you choose?

The final factor is size; my rims are 3.5 in the front and 4.25 in the rear. I want a grippy, sporty tire, but 120 is as wide as I can go in the front without rubbing, and 150/60-17 is about 1mm from the chain in the back.

Thanks for any input!

When I owned a supermoto as a commuting weapon in similar (actually, probably wetter) climate that you, I ran a road legal rain tire first (bike came with it) and then went to "regular" super sport tire. Those were Avons and it was over ten years ago so I can't give you specific recommenadations.

With the Husky 650, the best tires tended to be the cheapest decent sportbike tires as that thing tore up rear tires like nobody's business.

Q3's if they make them in the size you're after.

Bridgestone BT003, the street version. It's track tire sticky but good enough in rain, and designed for smaller bikes. Great tires, loved mine, used on a wr250x.

You want to run a 110/70-17 front and a 140/70-17 rear probably.

There's a deal on Bridgestone right now. Only downside is a mail in rebate.

Bridgestone