Overdrive 2 (OD2) headset spacer for the 1 1/4" stems of Giant TCR Advanced and Defy Advanced road bikes, model year 2021.
Outer diameter: 39 mm / inner diameter: 31.8 mm. Available in different heights.
Manufacturer's designations:
1319-TCRADV-0003 | Headset Spacer Spacer OD2 ID31.8 OD39.0X10.0mm PLASTIC
| Product name: | Giant OD2 Headset Spacer | 31.8 x 39 mm - 1319-TCRADV-0002 | 5 mm | 
| Manufacturer: | Giant Parts | 
| Item code: | GIP572028 | 
| Activity: | Cycling | 
| Material: | Composite, Polymer | 
| Usage bikesport: | Road Bike | 
| Headset accessories: | Spacer, Others | 
| Manufacturer item code: | 1319-TCRADV-0002 |