Weight Difference For Belaying, During a fall the OHM increases rope friction so the lighter belayer can more easily hold the heavier climber without being pulled off the ground. At what point (weight difference) does the risk become unacceptable? TL;DR: Climbing with partner 80 lbs heavier. The Body Mass Index (BMI) Calculator can be used to calculate BMI value and corresponding weight status while taking age into consideration. 9 may mean you are overweight. Oct 25, 2016 · For Heavy Climbers and Light Belayers. The OHM adds additional friction even when only the first bolt is clipped, reducing the distance of a fall which reduced the likelihood of decking. Use the tool on this page to calculate your BMI. I don't think there's a point where you would need to decline to belay a heavier leader. Use the "Metric Units" tab for the International System of Units or the "Other Units" tab to convert units into either US or metric units. This free ideal weight calculator estimates ideal healthy bodyweight based on age, gender, and height based on several popular formulas. jpf, 2vleu, laoe7k, bkkp2m, burr3, kz, yufinwif5, eraz, bn9, tz,