Mx Tech National shock with only 10 hours of ride time on it, in like new condition. Literally looks brand new. My motor seized recently and I bought a new bike so no longer need this shock.  I’ve spent 1000’s on aftermarket parts and have tried them all. This shock is hands down the best mod I’ve ever done to a bike. Provides much better rear end traction and positive feel. Drastically reduces wallowing without sacrificing comfort. Keeps the bike so much more level through rollers and braking bumps! Cannot rave about this shock enough. I never realized how important it is to have a good shock setup before using this one. Night and day difference.  It’s currently valved for 175 lbs B level rider. It’s highly adjustable though and the clickers have about 40 clicks. Can also be used on the 21-23 KX250. Just needs to be revalved. Original price from mx tech was $2650 plus tax so about $2800.