This Factory Pro downstop holder is presented as a replacement/upgrade part for use with O-XCP004 compatibility on XRAY X4 platforms. It is an RC-scale accessory intended to locate and secure the body rideheight downstop so that body height settings can be repeated after removal and reinstallation.
Functionally the part is intended to mount to the same points associated with the O-XCP004 item and provide a defined stop for the body posts or mounts. In practical tuning workflows it serves as a reference point for consistent body height when swapping shells, performing setup changes, or returning to a recorded rideheight during testing.
Installation considerations: check the O-XCP004 mounting points on your X4 chassis, retain or reuse the original fasteners where suitable, and confirm clearance with the body shell before final tightening. Fine adjustments to rideheight remain a matter of shims or body post position; this holder provides the repeatable locating feature rather than active height adjustment.
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