I use this shimano tourney crankset, And I've had no problems with my trousers, lots of use in my diary commute.
http://articulo.mercadolibre.com.mx/...no-tourney-_JM
It's on ebay too
http://www.ebay.com/itm/Shimano-Tour...item48417e952f
Last edited by Rapidoyfurioso; 12-02-12 at 09:05 PM.
Reason: adding info