If you go with any tire other than the OEM tire you will be adding weight because the tires are heavier. So you should probably add a clutch kit along with the tires anyway. The clutch kit will compensate for the added weight of the new tires and there will be no loss of performance. I have the 26" Bearclaw HTRs on the wife's 500 with a QSC clutch kit from RVS Performance. Call Ryan, explain what you are doing and he will hook you up with the right kit for your needs.
Mine: 2018 Sportsman 850SP - 26" Bear Claw HTRs on OEM steel wheels(I really don't like the Aluminum ones)
Polaris Hand warmers, Mirrors.
Hers: 2007 Sportsman 500 EFI, Polaris Winch, 26" Bear Claw HTRs on Moose 427x Wheels. QSC Clutch Kit, Hand Warmers
2001 Magnum 325 MOSE 12" rear wheel conversion. 25" Sedona Coyote tires
2001 Magnum 325 Warn winch and Moose 60" plow
2017 Polaris Ranger 1000XP - Roof and front glass
SOLD 2004 Sportsman 600 Twin