FREE for collection Nitrous Oxide bottles.

[Venod]

I see no issue with filling one from a track pump (with appropriate fittings) as long as it's re-labelled as compressed air to avoid any mistakes in future..

No issue for me, picked an empty one up from the side of the road, converted it to air cylinder for seating tubeless tyres at home, it works fine, a bit on the big side to carry on the bike IMO.

 

[fossyant]

Has the OP been having a 'fair few' snifties !

 

[tom73]

"The Times newspaper reports that under the proposals, drug misuse laws would be updated to allow people found with nitrous oxide gas in public to be prosecuted."

Could lead to some awkward moments for legitimate cyclists if they have any interaction with an uninformed police officer.... I know my CO2 cylinders for inflating tyres are unmarked and could be hard to prove what they contain if challenged when out and about?

Co2 ones have a thread on them, on the whole the same sized N2O cylinders don't have threads. In the end if law changed it would be up to an officer to prove they are unlawful and your braking the law.