What is the recommended tension for my AlexRims X2100 rim?
Some manufacturers have published recommended spoke tensions for their rims. For two examples, Mavic recommends 70 to 90 kg (700 to 900 N) in front and drive side rear and Velocity claims 110 to 130 kg (1100 to 1300 N). Non-drive side tension should be set so that drive side is at recommended tension and the rim is centered.

For high spoke count road wheels there is a workaround where you increase the tension until the wheel turns slightly taco shaped and then back off until it is true. This works for narrow rings like Open Pro, but can result in excessive tension for smaller and stiffer MTB rims.