HJC FG-ST

This HJC FG-ST collection is a parts page for the earlier FG-ST full-face helmet. The current listings are model-specific external vents and a chin curtain, not complete helmets, so compatibility depends on the exact component position and helmet graphic.

Most of the available pieces are colour-matched top intake or rear exhaust vents for Bolt and Crono finishes. Read the full product name and compare the original part before ordering, because a graphic code such as MC-1, MC-4, MC-5, MC-7 or MC-10 identifies more than a general colour.

What FG-ST parts are listed?

Match the helmet model and graphic code

Begin with the model label inside the helmet and confirm that it says FG-ST. Similar HJC names, shell shapes or vent outlines are not enough to establish fitment. A part for the FG-17 or another full-face model may use different clips, curvature or control geometry.

Next, identify the graphic family and code. Bolt and Crono are separate FG-ST designs, while codes including MC-1 and MC-4 distinguish colour arrangements within those designs. A red Bolt MC-1 rear vent and a black/red Crono MC-1 rear vent may share part of their naming without being visually interchangeable.

Use the original component as the reference where possible. Compare its location, clip pattern, colour blocks and operating control with the product photographs. Keep it until the new part has been checked rather than discarding it as soon as it is removed.

Top vents, rear vents and chin curtains

A top vent controls an intake near the crown of the shell. A rear vent sits over the exhaust area and helps finish the external airflow path. Even when their paint colour matches, the two parts have different shapes and attachments.

The chin curtain is a soft lower-opening component rather than a shell vent. It can help reduce direct airflow from below when correctly fitted, but it does not change the helmet's approval, replace protective structure or repair damage around the chin bar.

Check that any moving vent control operates freely after fitting. The replacement should sit flush without forcing, and no clip or edge should remain loose. If the part will not align, remove it and recheck the product reference instead of cutting, drilling or modifying the shell.

Assess the helmet before carrying out a repair

These small components are intended for lost, worn or cosmetically damaged trim on an otherwise serviceable helmet. They must not be used to conceal impact damage, shell cracks, compressed protective liner or an uncertain accident history.

Replace the complete helmet after an impact or where the manufacturer recommends retirement. If its age, storage or structural condition is unclear, seek guidance before spending money on a decorative part. A secure new vent cannot restore the protective performance of damaged shell or EPS material.

When the helmet is suitable for a minor parts replacement, work on a clean, stable surface and follow any instructions supplied with the component. Keep adhesives and cleaning products away from the visor, shell and EPS unless HJC identifies them as suitable for helmet use.

Why buy HJC FG-ST spares from Moto Central?

Moto Central groups the remaining FG-ST components by their full graphic names, making it easier to compare top and rear positions and to distinguish Bolt from Crono finishes. Our team can help interpret the label on an existing part and check the product photographs before an order is placed.

Browse more helmet spares and accessories or the broader HJC range if the required FG-ST part is not shown. For a helmet that is no longer suitable for repair, compare current full-face motorcycle helmets or view all motorcycle helmets.

Customer questions