Originally Posted by VPProUSA

I tried them 2 years ago and they were way too stiff and heavy for me. VP-Pro tested some closed cell truggy inserts last year but the benefits did not out weigh the negatives. The extra weight and rotating mass is no good for a truggy. Maybe some of the newer style softer foams with grooves might work ok though, but I use the stock foams. VP-Pro Truggy tires/wheels/foams are the lightest ROAR legal on the market.