MXT Low Friction Piston Ring http://www.ridejbi.com/mxt-low-friction-piston-ring/ This is a KYB rear shock off a 2009 Honda CRF450. The shock was built identically with the exception of the MXT LFPR using Maxima 3w Shock Fluid, 150psi of nitrogen, and all clickers turned out (counterclockwise). This video displays the drastic decrease in friction as the MXT LFPR shock rebounds smoother and quicker under its own internal pressure. The MXT Low Friction Piston Ring features a host of benefits tried, tested, and proven on the dyno and track. -1/5 the stiction (friction) of standard composite piston bands -Less friction = less heat = less fade -Seals as good as composite piston bands -Improved stability under large axial loads -Best works shock mod under $50.00 -Let Ride JBI Suspension Services install it for you -Fits 50mm KYB, Showa, and WP shocks -Fits 40mm KYB Shocks Showa rear shocks (2010 and newer Suzuki RMZ250 and RMZ450) come stock with a "quad ring" piston band that seals excellent but has a very high friction coefficient. For those the MXT LFPR is a must!