BB-Mount: The mudguard is mounted to the Bottombracket. 

ST-Mount: The mudguard in short design is mounted to the seat tube with an adapter.

Need your bike to be as versatile as you? The ACID Mudguard Set is just the right complement to equip you against the elements. It fits most 29in mountain bikes with a maximum tyre width of 2.35in and features stylish and practical details like shiny icon details, the ACID adapter system and an integrated light cable guide. The mudguards are compatible with our ACID rear light integration. 

Features:

• fits most 29" mountain bikes
• maximum tire width 2.35"
• shiny icon details
• ACID adapter system
• FEM optimized design
• integrated light cable guide
• compatible with ACID rear light integration
• set including stays with knurling
• material: polypropylene, steel, plastic