This set comprises the Single Spoke Knob Hinge Clamp and the Hinge Plate (See Through Safety Window) for securing your Brompton frame and is sold as a pair. This is designed for usability and convenience for the Brompton rider living life unfolded.

The design for the MiniMODs Single Spoke Knob Hinge Clamp was inspired by our Single Spoke EZwheels, which was rolled out earlier in 2025. Featuring a clean, elegant and minimalist aesthetic that is aligned with the MiniMODs brand values and design, the single spoke design would appeal to those who love their mods functional and yet pretty to look at. It also makes a perfect combo when installed on the Brompton along with the Single Spoke EZwheels, MiniMODs X-Roller Extender for EZwheels and MiniMODs Adjustable Front Carrier Block.

The drone inspired design of the base for the knob hinge clamp with four small protrusions aids the user to smoothly turn / spin the knob and then easily secure the knob with a final lock-in turn. When folding, this feature helps the user easily unlock and turn the knob. The hinge knob clamp also has a reverse thread screw that prevents the stop screw from loosening together with the hinge knob while turning. Further, the E-type circlip attached to the hinge plate ensures it stays in place while the knob is being turned, so it is possible for the user to turn, lock/unlock with just one hand.

The MiniMODs Hinge Plate with See Through Safety Window has several key features to support your riding experience and comes in an array of beautiful colours for Brompton modification enthusiasts.

A key feature is a first of its kind see-through "safety window" for riders to easily check if there is a safety gap between the hinge and the hinge clamp plate. There should be a gap of at least 0.90mm between the hinge and hinge clamp plate (please refer to the Brompton user manual). For safety reasons, the hinge plate should be replaced if this gap is less than 0.90mm. With this function, riders can easily and quickly check on the gap at any time.

The hinge plate, also made of durable alloy like the knob, is also designed to be fully enclosed and reinforced for added strength and durability, to ensure long-lasting performance.

This hinge plate is also fully compatible with the Brompton Original Hinge Clamp Lever and sold as a pair separately here.

Options are available for C and P Line, T Line and G Line Bromptons.

Summary of key features

More specs and info

Weight (per pair): C/P Line - 99 g; T Line - 103 g; G Line - 104 g.

Product is sold as a pair.

IMPORTANT NOTE:

For C Line Bromptons made before 2019, you will need to purchase an additional set of two extended reverse-thread screws (M4x10) and two sleeves at GBP 1 for the whole set. Please select the additional component option.