Just got this email day before yesterday from Dunlop! “We’ve had a lot of requests for 18-inch rear fitments from off-road riders who want the same performance that motocross riders get from the 19-inch rear Geomax MX series tires, so we’re making 18-inch sizes available in January, 2016,” said Mike Manning, Director of Marketing, Dunlop Motorcycle Tires. “Additionally, we’ve renamed the MX32 to avoid any confusion between a competitor’s tire and ours. The Dunlop Geomax MX32 is now the Geomax MX3S, but only the name has changed. It’s the same tire that has won numerous championships, and now it’s available to even more riders in 18-inch sizes.” The Geomax MX52 will be available in a 110/100-18 size, and the MX3S will come in 110/100-18 and120/90-18 sizes. Both tires feature the same technology that has made them favorites among professional and amateur racers alike: • The Geomax MX3S covers soft-to-intermediate terrain while the MX52 excels in intermediate-to-hard terrain conditions. • Superior grip in a wider variety of terrain from block-within-a-block tread knobs. • Enhanced handling and improved knob durability via more flex and less knob tearing through recess carcass design. • Superior bump absorption through damping control sidewall rubber compound and recess carcass design that help to damp out bounce, acting as a suspension component so the tire can better follow the track surface. • Directional front tire design provides enhanced grip and steering feel.
The MX52 rear is insanely good, it works great in sand, rocks, on and off the mx track and I have even ridden asphalt. I prefer the 19", but a 18 will open them up to other riders.
