Pray the suntour freewheel is not a 2peg style. Absolute buggers as the 2 peg tools are often not strong enough and sheer off the pegs without moving the freewheel. Alternative suggestion is a hole punch and hammer to tap the freewheel off. 4 peg better or splined type better still
Gazz I have had a look and I do have a few tools , but no four peg ones, I have a 2 peg one, but I would assume if you need a four peg removal tool, this would be no use to you, as you might break the two pegs off ,, so on this occasion I cant help you fella.. sorry.. , just a thought but try SJS cycles as they tend to do quite a few bits and bobs..