The PS1 is Unknown Bikes signature fixed gear single speed frame. This frame is made from T6 Aluminum with wish with a uniquely rounded downtube that gradually flattens as it extends downward to join the bottom bracket. Which makes this fixed gear frame stand out from the crowd.
- T-6 Heat Tempered 6061 Alloy Tubing
- Double Sided Dropouts
- 27.2mm seatpost compatible
- 68mm wide Euro threaded bottom bracket compatible
- Campy compatible 45/45 headset
Weight : Frame 1.7kg,