This is an optional ProTek R/C Aluminum "Elliptical" ...
Samurai 321B Carburetor Restrictor. Featuring a unique oval shape, ProTek R/C Elliptical carb restrictors provide improved fuel mileage, with a more progressive power delivery that is smooth on the bottom, and ramps ...
This is a Protek R/C 14.5x26x6mm "MX-Speed" Rear ...
Engine Bearing, and is intended for use with any nitro engine that requires a 14.5x26x6mm rear bearing. ProTek MX-Speed engine bearings offer decreased resistance, increased speed, load handling capabilities and extended bearing ...