ISO 4210-8 city-trekking bikes (ZUMBA)
ISO 4210-8 mountain bikes (ZUMBA-ML)
Compatible bb-housings (mm): 68, 73*
Cold-forged and zinc-coated (A2B) steel spindle
2RS ball bearings
Composite cups
CNC-machined and zinc-coated (A2B) steel sleeve
Both cups compatible with PEDRO’S® key
Sleeve allows cables to pass by easily
Engineered to perfectly match Gates® CDN belt drive

* With shoulderless cup on the left side (not compatible with PEDRO’S® key)