Bicycle chain guard - is fixed concentrically around pedal sprocket bearing and covers sprocket side

摘要

The bicycle chain-guard fits between the pedal sprocket and the frame tubes extending from its bearing, being fixed to one or more fo the tubes. The guard (1) is also fixed to the bearing (2) extending cocnetrically round it and covering the sprocket (3) at the side. It can be secured by two parallel rings spaced apart along the bearing axis, one of them typically being fixed to the guard and the other sliding in it along the axis. ADVANTAGE - Rapid installation and equally suitable for multiple sprockets.