Essential Hub Gear Cable Routing Component for Smooth Shifting
The Brompton Internal Gear Hub Gear Cable Pulley Assembly (QCPULA) is an essential component of the hub-gear system used on Brompton bikes equipped with internal hub gears, including 3-speed, 5-speed, 6-speed, and 12-speed models. This black plastic assembly mounts to the rear frame's seat stay and facilitates the smooth routing of the gear cable through approximately 90 degrees as it emerges from the cable outer and connects to the cable anchor, which in turn connects to the gear indicator chain. The internal roller wheel allows the cable to move freely through this crucial angle, ensuring smooth and efficient gear changes when you activate the gear trigger.
Crafted from durable, tough plastic, the pulley assembly contains a precision wheel designed to enable the smoothest cable movement possible. This component is compatible with both SRAM and Sturmey Archer internal hub gear systems, making it a versatile replacement part for most hub-geared Brompton models. The current design features a slightly more rounded shape compared to earlier versions (pre-July 2015), but maintains full compatibility with both long and short wheelbase Bromptons. Over time, the internal wheel can become clogged with dirt and debris, affecting gear shifting performance—when this happens, replacement ensures your Brompton's gears continue to change without hassle.
Precision Cable Management
- Essential component of Brompton's hub-gear system for smooth, reliable gear shifting.
- Routes hub gear cable through approximately 90-degree angle from cable outer to cable anchor.
- Internal roller wheel allows cable to move freely through the bend for smooth gear changes.
- Compatible with both SRAM and Sturmey Archer internal hub gear systems.
- Fits all Brompton bikes with internal hub gears: 3-speed, 5-speed, 6-speed, and 12-speed models.
- Compatible with both long and short wheelbase Brompton frames.
- Durable tough plastic construction withstands regular use and weather exposure.
- Mounts directly to rear frame seat stay for secure cable routing.
- Precision-engineered for efficient gear cable movement and reliable shifting performance.
- Updated rounded design (post-July 2015) maintains full backward compatibility with older Bromptons.
- Essential replacement part when internal wheel becomes clogged or worn over time.
- Genuine Brompton component ensuring perfect fit and function.
