We Tested MAXXIS' New DH Casing: Did It Deliver?

Jennifer Miller · 2026-07-29

More grip, better puncture protection, and the ability to run lower tire pressures without adding weight. That's a bold promise from MAXXIS with their new DH casing. We took it to the lab and the trail to see if it's real or just marketing hype. For years, the DH casing has been the toughest option in the MAXXIS lineup and a staple of the Downhill World Cup. But here's the thing: modern downhill bikes are faster, tracks are rougher, and tires are taking more abuse than ever. When races are decided by hundredths of a second, one flat tire can cost you more than a single race. It can cost you a title. So what did MAXXIS change? Let's break it down. ### What's New Inside the Casing The updated DH casing keeps the dual-ply construction that gravity riders trust, but MAXXIS made four key changes that matter. The first is a stiffer butyl insert around the tire bead. This is designed to improve stability at lower pressures and cut pinch flat risk by 28%. You can feel the difference before you even mount the tire—the bead is noticeably firmer. Second, there's an extra sidewall protection layer. MAXXIS claims sidewall durability is up 24%, and tread puncture resistance improved by 28%. That's a meaningful jump for riders who push through rocky sections. Third, the casing now uses two 120 TPI plies instead of the old 60 TPI fabric. Finer threads mean the tire is more supple and conforms better to terrain. Our guess is that MAXXIS used the higher thread count to offset the stiffer bead, keeping the ride compliant. Finally, the overlap between the two plies extends further into the shoulder area. That's where cornering loads hit hardest, so it makes sense to reinforce it. ### How It Feels on the Trail We mounted the new casing on a test rig and ran it through the usual gauntlet of roots, rocks, and high-speed berms. The first thing you notice is the suppleness. Small bumps get absorbed more smoothly, which translates to better grip when you're leaning into a turn. Under heavy landings, the casing stays stable—no squirm or vague feeling. The lower pressure claim checks out too. We dropped pressure by about 3 psi (the metric equivalent of 0.2 bar) and didn't feel any increase in rim strikes. That extra compliance makes a real difference on rough tracks. Here's what stood out during testing: - Pinch flat resistance felt genuinely improved on sharp-edged hits - Sidewall cuts were less frequent in rocky sections - Cornering grip was noticeably better at the same pressure as the old version - No meaningful weight penalty—the new casing weighs about the same as before ### Is It Worth the Upgrade? If you're racing downhill or enduro at a high level, yes. The new casing offers a real performance edge without the usual trade-offs. For casual riders, the benefits are less obvious, but the added durability could mean fewer flats and longer tire life. The only downside? The new colored sidewall logo might not match your aesthetic, but that's a minor quibble. What matters is that the tire performs as advertised. We put about 50 miles of hard riding on the new casing, including a full day at a bike park with rocky descents and high-speed sections. No flats, no cuts, no issues. The old casing was already solid, but this one feels like a genuine step forward. If you're in the market for a gravity tire that can handle abuse and still give you grip, this is worth serious consideration. MAXXIS didn't just tweak the formula—they improved it where it counts.