The Arrowmax AM-010070 BB DJC is supplied as an RC-scale replacement or upgrade part for XRAY T4 models that require a 52mm BB DJC. The copy emphasises fit and intended maintenance use rather than promoting performance claims.
The item is intended to interface with T4 assemblies where a 52mm BB DJC is specified and should be treated as a spare part for bearing-related service or focused setup adjustments, not as a universal solution for other chassis types.
Fitting notes: verify 52mm clearance with your XRAY T4 mounting layout, clean mating surfaces and examine for wear, and replace any damaged fasteners with manufacturer-recommended items. This description does not replace a workshop manual or include implied tools or extras.
Keep AM-010070 as a spare for XRAY T4 setups calling for a 52mm BB DJC and inspect bearing seats and fasteners when installing to maintain consistent chassis behaviour.
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