the last thing you want is oil splashing onto your wheels rim or disk brake rotors – as this will lead to dangerous brake failure 

place a piece of cardboard between the chain and your back wheel

place nozzle of chosen lube onto chain (only bottom section – as only this touches cogs)  slowly turn pedals backwards and squeeze container gently to evenly apply oil to every link.

wipe any excess lube off with a tissue / cloth and carefully remove the cardboard.

 

the simplest way to check the condition of any bike – pre ride or for regular maintenance – 

just lift it a couple inches and drop it

the bike should bounce (unless its a full suspension mountain bike) and be almost silent

listen for any rattles – bangs – thuds that tell you something needs tightening up – adjusting or replacing

how often should you bikes chain set be de-greased ??