Anti-Pinch Pin

Pragmasis Anti-Pinch Pin – Motorcycle & Vehicle Security

Secure your motorcycle with a heavy-duty security chain, even when the chain won't fit through the wheel.

Motorcycles with single-sided swingarms can be particularly difficult to secure. Not only is the rear wheel hub often too narrow to accommodate a heavy-duty security chain, but simply locking a chain through the rear wheel can leave the motorcycle vulnerable to thieves removing the wheel itself.

The Pragmasis Anti-Pinch Pin solves both problems. Manufactured from case-hardened steel, it passes through the rear wheel hub to provide a secure attachment point for our Protector 16mm or 19mm chains, while also making the rear wheel considerably more difficult to remove.

Its substantial welded steel head prevents the pin from passing through the hub and, on certain motorcycles, also obstructs access to the rear wheel mounting bolts.

The Anti-Pinch Pin isn't limited to motorcycles. It can also be used through other suitable openings that are too small for a security chain, including alloy wheels, trailer and quad bike axles, and suitable openings through motorcycle engine blocks.

How Does the Anti-Pinch Pin Work?

Using the Anti-Pinch Pin is straightforward:

1. Pass the pin through the hollow rear wheel hub of your motorcycle.

2. Slide one or both ends of your security chain onto the exposed shaft.

3. Fit the appropriate Squire padlock over the specially machined tip.

4. Lock the padlock to secure the chain and prevent the pin from being withdrawn.

The pin features a specially machined, chamfered groove at its tip, designed to work with the designated Squire padlock to retain the chain securely.

You can attach both ends of the chain to the pin when looping it through a ground anchor, or use just one end when connecting your motorcycle to another bike or suitable security point.

Choosing the Correct Pin

The Anti-Pinch Pin is available in two shaft diameters:

• 24mm Anti-Pinch Pin: Compatible with our Protector 16mm and 19mm chains. Requires a Squire SS65CS padlock.

• 30mm Anti-Pinch Pin: Compatible with our Protector 19mm chain. Requires a Squire SS80CS padlock.

The pins have been specifically developed for these Squire padlocks. Other padlocks are not supported.

Both versions feature the same substantial steel head, but the shaft diameter and locking-tip dimensions differ.

Choosing the Correct Length

If your motorcycle isn't covered by our known fitments, or you're using the pin for another application, you'll need to select the appropriate length.

Start by measuring the internal diameter and depth of the opening through which the pin will pass.

There are two important measurements:

Nominal Length: The length of the pin, from head to the very tip. This is the length shown when selecting your pin.

Usable Length: The length of shaft available between the head and the locking tip. This is the space available to accommodate the hub or other component, your chain links and any spacers.

The Usable Length is calculated as follows:

• 24mm Pin: Nominal Length − 44mm

• 30mm Pin: Nominal Length − 55mm

For example, a 312mm nominal-length pin with a 24mm thick shaft has a usable length of 268mm.

To select the correct length, add together the width of the hub or opening and the space required for your chain links. The pin's usable length must be slightly greater than this total.

For maximum security, we recommend keeping excess clearance to a minimum. Up to 30mm is acceptable, but if you have more than 30mm of unused space, we recommend using our Anti-Pinch Pin Spacers to achieve a closer fit. This makes it harder for a thief to gain access to, or purchase on, the pin shaft or chain links.

The BMW Pin – Our Recommended 312mm Version

BMW motorcycles are among the most common applications for our Anti-Pinch Pin, thanks to the single-sided swingarm design used across many models.

For compatible BMW motorcycles, our 312mm Anti-Pinch Pin – The BMW Pin is the recommended choice.

Rather than working through different pin lengths and measurements, owners of compatible BMW models can simply select the BMW Pin, knowing it has been chosen for this application.

Please check the known motorcycle fitments in the Additional Info tab to confirm compatibility with your model.

The Ducati Pin – Our Recommended 352mm Version

Many Ducati motorcycles feature a single-sided swingarm with a hollow rear wheel hub, making them particularly well suited to our Anti-Pinch Pin.

For compatible Ducati motorcycles, our 352mm Anti-Pinch Pin – The Ducati Pin is the recommended choice.

Rather than working through different pin lengths and measurements, owners of compatible Ducati models can simply select the Ducati Pin, knowing it has been chosen for this application.

Please check the known motorcycle fitments in the Additional Info tab to confirm compatibility with your model. The chart lists single-sided swingarm motorcycles, their hub diameters and whether an Anti-Pinch Pin will fit.

Construction and Security

Our Anti-Pinch Pins are manufactured from case-hardened steel, with a substantial head and a specially machined locking tip.

The enlarged head provides a considerable mass of steel to resist physical attack and prevents the pin from being pulled through the opening.

When fitted through a motorcycle's rear wheel hub and secured with a chain and padlock, the pin also makes it considerably more difficult to remove the rear wheel, helping prevent thieves from defeating the security arrangement by simply unbolting the wheel.

On the majority of motorcycles, the head provides additional protection by obstructing access to the rear wheel mounting bolts.

All Anti-Pinch Pins are supplied with a black finish. You can also buy spacers, larger pin head washers and protective coatings to customise your pin.

Don't Forget Your Reminder Cable

We strongly recommend using our Reminder Cable to help prevent you from accidentally attempting to ride away with the Anti-Pinch Pin still fitted.

For maximum effectiveness, pass the pin through the reminder cable before inserting it into the motorcycle, so the cable sits next to the head of the pin.

This makes it much less likely that you'll remove the reminder cable but accidentally leave the pin fitted to your motorcycle.