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I updated my chart to include the tire manufacturer's ratings.
More calculations:Rider weight - FR / RR pressure:175 lbs - 33.0 / 36.0 psi200 lbs - 33.8 / 36.4 psi225 lbs - 34.6 / 36.7 psi250 lbs - 35.3 / 37.0 psi275 lbs - 36.0 / 37.3 psi (front limit)Passenger/cargo weight (over rear axle):For every 49 lbs - add 1 psi to rearRear weight limits at GAWR:245 lbs w/ light (175 lb) rider - add 5 psi182 lbs w/ heavy (275 lb) rider - add 3.7 psi
Sdaniels, those are for a rider weight bias 35/65% and the C-spec should be 40/60% shown in the last chart. I need to calculate some useful figures based on it.