We show the spare 21301-15 under the name "FRONT SPROCKET STEEL 520, 15T. It is however possible that you will come across this elsewhere under a different name. We recommend that you only look at the product number. Look carefully at the photo to find out if this is the same article you need. Do you like to know if this spare will fit your model? Then take a look at the list below. This spare part is sold with high frequency. Check now whether it is still available. See the actual stock level via the hyperlink.