Trapped particles can restrict airflow, and if dirt works its way into your engine, a pinhead-sized granule will gouge your cylinder, piston and rings like a bullet. The course, open-pore outer foam catches airborne dirt, grime and sand while a fine, open-pore inner foam acts as a second filter to trap small particles ensuring maximum air passage. Twin Air's Standard air filters feature an exclusively formulated adhesive that withstands repeated cleanings and a greaseless foam sealing ring that acts as a breathable gasket for increased air passage. Pre-Oiled filters are treated with Twin Air® BIO Foam Filter Oil using state of the art filter oiling machines, which provide the ultimate consistency in pore coverage. The same treatment that Factory Race Teams and O.E.M.s receive is now available to all Twin Air customers.
-High quality, dual-stage filter
Fits 450RX, 2020-on RR/full-size RR-S/RS, and 2023-on XTrainer.
Twin Air Beta RR|RR-S (20-)|XTrainer (23-) Pre-Oiled Air Filter Produced by Twin Air of the Netherlands
Haven’t had to use yet but I still give it 5 stars because it’s a simple tool and should work great. I like the fact that it won’t let chain tighten when I go to tighten it all back up like sometimes happens without it. Great idea and I’m sure I could use something else for cheaper but this is a easy way and worth the money for me.
The water pump rebuild kit did not come with the oil seal that it shows in the photo. I emailed and called SMS and did not get a reply. I was forced to buy an oil seal from another supplier in order to get my bike back up and running.