Join Date: Jun 2010
Location: NW,Oregon Coast
Mentioned: 19 Post(s)
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Quoted: 1155 Post(s)
They are usually, Plastic. people come in looking for replacements when they break, as they do.
the basement has some bikes that died for other reasons,the sole source of replacements.
I have added Aluminum ones on my bikes, they did not come with them, as part of the crank-set..
Hauling a loaded Tour bike down stairs and back up again to change train Platforms
they do reduce the big ring tooth damage, if strong enough..
I have an extra 110 48t from Salsa , they dropped making that size long ago, if anyone is interested..
Last edited by fietsbob; 01-04-13 at 10:03 AM.