05-06-12, 04:07 PM
O-rings (wherever they're fitted) should be replaced as a matter of course, they're fairly common items so any good motor factors should have them (or if you have one nearby, try Halfords). They're not particularly expensive either.
If you do a lot of work on the bike (or indeed, the cage), it may be worth buying an O-ring kit (basically a multi-pack of various sizes).
If you do a lot of work on the bike (or indeed, the cage), it may be worth buying an O-ring kit (basically a multi-pack of various sizes).