Terrence, The pressure is 21bar. Use nitrogen to refill or go to a cycle shop and buy a high pressure pump (get the good one with the no loss valve!! like following: http://cgi.ebay.com/Beto-MP-035-Suspension-Fork-Shock-Pump-RRP-25-/290477896355?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item43a1d4f2a3#ht_2409wt_1139 I have my pump in the first aid box If you want to change or refill the oil you'll need special tools. So better ask Tim if refilling the air doesn't help. Christian Lancair 390 OE-VCM > AT rest my Ong Debongers show about one inch of remaining travel available. They work nicely, but I think they're not extended as much as they should be. > What pressure or stroke should be available... at empty weight? Or... whatever? -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html