Hi,

50psi rear and 35 psi front is about right for an average guy
on a folder with 47mm (1.75") tyres. BA's should be even
lower assuming that they are bigger than 47mm.

70 psi is way too much for BA's.

rgds, sreten.

4 to 3 pressure, rear to front, is good for folders.

(Road bikes IMO 5 rear to 4 front is about right.)