planet x alan Posted November 21, 2007 Report Share Posted November 21, 2007 well i want something cheap and cheerful to keep my chain on the chainring on my dirt jump bike im unsure if you can get one to clamp on the seat tube? and also how do them ones that go round the bb work?its a gt moto frame and it doesn't have the 3 holes for conventional devices...enlighten me all help appreciated.cheers. Quote Link to comment Share on other sites More sharing options...
Lawnmowerman Posted November 21, 2007 Report Share Posted November 21, 2007 DMR Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted November 22, 2007 Report Share Posted November 22, 2007 The bb ones go behind the bb shell look like this :They stop the chain going to the side and falling off by using a roller, jockey wheel or nylon runner ..... http://chainreactioncycles.com/Models.aspx?ModelID=10800 Quote Link to comment Share on other sites More sharing options...
JonMack Posted November 22, 2007 Report Share Posted November 22, 2007 I used to use one of these when I rode dirt, http://www.chainreactioncycles.com/Models.aspx?ModelID=259 and it was awesome. Quote Link to comment Share on other sites More sharing options...
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