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 Size Guide from LS2 Helmets

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ACM Titanium Locknut

Sizing Guides

Quick Size Guides - More size guides are available on the main menu

Sizing Guides

Quick Size Guides - More size guides are available on the main menu



The Gilles ACM Rear Wheel Axle Safety Locknut is perfectly engineered from the finest grade of lightweight titanium, with an awe-inspiring design. This offers superior strength accompanied with excellent resistance to corrosion, and features a truly unique look.

This nut: uses regular 36mm socket; fits a standard M25 x 1.5mm thread; has a 43mm overall diameter; stands 12mm tall; weighs just 27 grams.The face has a subtle Gilles logo engraving. The locking mechanism is adjusted by a 2.5mm hex-key (supplied).

Can be used with or without the TCA Chain Adjusters that can be found HERE

Stock Availability Guide

🟢 Green Light

Good stock availability, usually set to 4 or more items and held in store for quick dispatch.

🟠 Amber Light

Low stock levels, usually 1-3 Items available to order. Items held in our stock or sent direct from our supplier.

🔴 Red Light

Stock levels set to 0 - Preorder available. Out of stock with ourselves and the UK distributor but can be ordered in on their next delivery.

🔴 Red Light

Stock level set to 0 with no preorder available means the product is currently not available to us from our suppliers.