Share.

3 Comments

  1. TheLastBlakist on

    In case the chain slides off the largest/lowest gear to hopefully keep your spokes from getting destroyed. Mandated include if you buy from department stores.

  2. Puzzled_Variety_8487 on

    The idea is to protect the spokes in case the chain drops behind the sprocket. That shouldn’t happen though if the derailleur is properly adjusted.

Leave A Reply