The FSA Hammer TH-877 Threadless Headset is designed to deliver superior performance and durability for your bike. Built with precision engineering and quality materials, this headset is ideal for riders seeking smooth handling and long-lasting reliability. Whether you're a road cyclist or a mountain biking enthusiast, the Hammer TH-877 offers the perfect blend of strength and functionality, making it the ideal choice for demanding rides.
- 12mm "Deep Cup" design
- Nylon top cover
- Forged and CNC machined steel cups
- 5/32" x 20 upper bearings
- 3/16" x 20 oversized lower bearings
- 24.7mm stack height
- 149g
Attributes
| Bearing Grade | Heavy duty caged ball |
| Crown Race Diameter | 30mm |
| Headset Position | Complete |
| Headset Type | External, Threadless |
| Headset Weight | 149g |
| Lower Cup | 34mm |
| Primary Color | Black |
| S.H.I.S. | EC34/28.6 | EC34/30 |
| SHIS Lower | EC34/30 |
| SHIS Upper | EC34/28.6 |
| Stack Height | 24.7 |
| Steerer Tube | 1-1/8'' |
| Upper Cup | 34mm |