The Factory Pro O-XCP004 Body Rideheight Downstop Set is a purpose-made accessory for the XRAY T4'21 touring car chassis. The set creates a controlled lower limit for body rideheight so body clearance remains consistent across setup changes and track sessions.
These components function as fixed body-to-chassis mounting points that define the minimum body gap without affecting suspension geometry. That repeatability helps when trimming polycarbonate bodies and when comparing aerodynamic settings, since the body height is held steady between runs.
Installation is aimed at users familiar with the T4'21 layout: the downstops fit at the standard body post locations on the chassis and are adjusted to the selected stop height rather than being used as hard suspension limits. Confirm the retailer listing to see which fasteners or posts are supplied.
Tuning tip: fit the O-XCP004 set as a consistent reference when trying different body cuts, wing heights, or when copying setups between matched T4'21 cars to isolate rideheight-driven behaviour.
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