High-Speed Ball-Bearing 10x15x4 Blue Covered (2) (Item No longer available)
XR309054 This part has been superceded by XR941015
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New high-speed ball-bearings manufactured specially for XRAY. Top-quality professional ball-bearings for a super-free, super-smooth drivetrain.
These highest quality ball-bearings are fitted with special polyamid blue covers, and are degreased and lightly oiled with AeroShell Fluid 12 oil for maximum smoothness, long life, highest tolerance and maximum performance.
These ball-bearings have more (and larger) balls inside the cage than the regular ball-bearings, making them much more resilient under loads. The blue polyamide covers are easy to remove for quick and comfortable servicing.
These ultra-high precision ball bearings are designed to withstand all extremes at the track under racing conditions or even just fun racing. A 'must have' item!
These new high-speed bearings are substitutes for 309052 HQ Ball-Bearing 10x15x4 Blue Covered (2), as these are already degreased and oiled for higher speed.
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