JE Pistons Polaris RZR XP900 93MM 11.5 to 1 Piston Single fits_2017-2019`BMW`430i Gran Coupe`Base~2017-2019`BMW`430i xDrive`Base~2017-2019`BMW`430i xDrive Gran Coupe`Base They are a spring loaded

They are a spring loaded assembly with a fast thread and locking detent

Now offering FedEx 2-day air shipping as a option for orders in the 48 states

The air intake tube is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish

This helmet also comes with the FIA-8859-2015 certification sticker applied to the interior liner of the helmet

and Supersonic Universal Fit BOV

JE Pistons Polaris RZR XP900 93MM 11.5 to 1 Piston Single fits_2017-2019`BMW`430i Gran Coupe`Base~2017-2019`BMW`430i xDrive`Base~2017-2019`BMW`430i xDrive Gran Coupe`Base They are a spring loadedJE Pistons Polaris RZR XP900 93MM 11. 5 to 1 Piston Single