30 to 40 seems high for a 50+ mm tire. I run my 50 mm labeled/51 actual Furious Freds (tubeless) at about 23-24/26-27 for a mix of pavement, sand (up to 3"), and roots and small rocks, and that seems firm.
Note that the F Freds are considerably lighter (360 grams consistently, at least the 3 or 4 I've weighed) than the RTPs, too (and the FFs are 700C tires). And even 23 seems high compared to the 15/18 and as low as 12 in front that I used in 60 mm Big Apple Liteskins, though these had tubes. Same conditions, though man! 15/18 psi was wonderful in sand! The FFs require more pressure to prevent sidewall flop. How do you (plural( decide what pressure to choose? -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
