This is a pack of ten 13x20x4mm rubber sealed "Speed" ball bearings. ProTek R/C "Speed" bearings are high quality steel/chrome bearings designed for the R/C racing enthusiast.
These 13x20x4mm rubber sealed bearings are used with the XRAY XB808 family of vehicles and are an excellent choice for any application that uses a 13x20x4mm bearing. Please check the manual that came with your vehicle for the correct size if you are not certain.
This product was added to our catalog on June 16, 2010