Radial acceleration relation of galaxy clusters constructed with X-ray gas thermodynamics (gray lines), galaxy kinematics (black points), and weak gravitational lensing (red diamonds). Gray lines are truncated within 50 kpc and 2000 kpc. The weak lensing results are only available at R₅₀₀ from Bulbul et al. (2024), since they were estimated using the scaling relation between weak lensing mass calibrated with simulations and X-ray count rates (with optical richness considered) (Ghirardini et al. 2024). The dotted line is the line of unity, and the solid red line is the fiducial RAR defined by disk galaxies (McGaugh et al. 2016; Lelli et al. 2017b).