Unlock true single‑speed strength and high‑tooth gearing.
This custom‑machined adapter lets you mount any Bafang 5‑bolt chainring or spider onto a rear Shimano HG freehub, creating an ultra‑strong single‑speed setup capable of running large chainrings. It’s ideal for riders using the High Voltage BBSHD upgrade kit who want to achieve the coveted 1:1 ratio for maximum speed, acceleration, and climbing performance. Machined in-house from 6061 aluminum.
For riders who want perfect alignment, the optional spacer kit provides fine‑tuning of chainring position on the hub. This ensures a smooth, efficient chainline.
Spacer Kit Includes:
2 × 10 mm
3 × 5 mm
3 × 2 mm
2 × 1 mm
Spacers are 3D‑printed polycarbonate with 100% infill for excellent compressive strength and durability.
Torque spec for M5 bolts: 61 in‑lbs (6.9 Nm)
Use blue Loctite on all threads
Make bolt inspection part of your regular drivetrain safety checks
Not compatible with SRAM XD or Shimano Microspline hubs.
Unlock true single‑speed strength and high‑tooth gearing.
This custom‑machined adapter lets you mount any Bafang 5‑bolt chainring or spider onto a rear Shimano HG freehub, creating an ultra‑strong single‑speed setup capable of running large chainrings. It’s ideal for riders using the High Voltage BBSHD upgrade kit who want to achieve the coveted 1:1 ratio for maximum speed, acceleration, and climbing performance. Machined in-house from 6061 aluminum.
For riders who want perfect alignment, the optional spacer kit provides fine‑tuning of chainring position on the hub. This ensures a smooth, efficient chainline.
Spacer Kit Includes:
2 × 10 mm
3 × 5 mm
3 × 2 mm
2 × 1 mm
Spacers are 3D‑printed polycarbonate with 100% infill for excellent compressive strength and durability.
Torque spec for M5 bolts: 61 in‑lbs (6.9 Nm)
Use blue Loctite on all threads
Make bolt inspection part of your regular drivetrain safety checks
Not compatible with SRAM XD or Shimano Microspline hubs.
