I googled about multi-piece swimbait and glide bait rod. And i found this rod

 

If i want to use 2-4oz lures which strength i have to choose?

 

It's weird they don't show the lure ratings on their site. They show 3 different 8' swimbait rods. A Heavy, Extra Heavy and Extra Extra Heavy. 

 

Now, on TW they show the Heavy, and it's rated up to 2 oz. So I'd rule that out. Now not all rod ratings are true to form. But I'd advise not throwing a 4 oz bait on  rod rated up to 2 oz. 

 

You could always call them to get the ratings on the other two rods, and see what they recommend. 

The XH is what you're looking for.

 

For what it's worth, I have 3 Battletek Rods.  All 3 rods I really really enjoy fishing with.  I think the 7'4" bladed jig rod is a true gem for the application.

 

6'10" M/F - Jerkbait rod

6'7" MH/F - Topwater rod

7'4" MH/MF - Bladed Jig rod