Definify.com
Definition 2025
chaincase
chaincase
See also: chain case
English
![](https://definify.com/images_main/Kettenschutz.png)
Close-up of a touring bicycle's chaincase
Noun
chaincase (plural chaincases)
- A guard which fits around the chain of a bicycle to protect it from dirt and other environmental hazards, and to protect operators from dirt and danger of trapping.