New Product: SRS Racing CRF250R/CRF450R And KX250F/RM-Z250 Pistons – Dirt Rider Magazine

Using the same technology as in superbike and GP roadracing, these forged pistons are lighter and stronger than stock, run 0.8 rings for less friction and are sold with rings, wrist pin and circlips. Retail price is $230. You can also bump your CRF450R to 490cc with a $250 big-bore piston.SRS Racing: 631/725-5726; www.srsracing.it