| Model | FC-R8000 |
| Reference supplier | IFCR8000DX26 |
| Type | Double |
| Denture plateau | 52/36 dents |
| Longueur manivelle | 172.5 mm |
| Entraxe BCD (Ø fixation en mm) | 110 |
| Nombre de branches | 4, asymétriques |
| Number of compatible speeds | 11, 2x11 |
| Type d'axe | Traversant, 24 mm |
| Q factor | 146 mm |
| Ligne de chaîne | 43,5 mm |
| Largeur boitier / longueur axe | 68 / 70 mm |
| Main colour | Black |
| Technologie | Hollowtech, Hollowtech II |
| Weight in grams | 681 |
Ultegra R8000
Gears: 11
Chainrings: 52-36 teeth / 4 spokes
BCD: 110mm
Cranks: 172.5 mm
Cup: Hollowtech II (not delivered)
Chain line: 43.5 mm
Q factor: 146mm
Material: aluminum