Recommend these, Vee Tire Speedsters, 26X3.5 so not as wide as you have now. Still decently wide on an 80mm rim. Still need to run these at higher pressures, I run 20 psi front and 22 psi rear. Your other choice would be Vee Tire Zig Zags, 26X4.0. Can’t comment on the performance of the Zig Zags...