ATV riders, it's time for a new chain and sprockets! This kit is made specifically for the Honda TRX400EX Sportrax from 1999 to 2004. It includes a heavy-duty 520-size O-ring chain (94 links) and both sprockets – a 15-tooth front and a 38-tooth rear. That gearing is pretty standard for good all-around performance. The O-ring design helps keep dirt out and lubrication in, so your chain lasts longer. Brand new from Max Motosports, part number 967261208117. If your old chain is stretched, rusted, or the sprockets are hooked, this set will get your quad shifting smoothly again. Perfect for trail riding, dune bashing, or just maintaining your machine. Install it yourself or have your shop do it. Either way, you'll be back on the throttle in no time. Keep your TRX running strong!