Replacing the Roc Loc 5 Retention System on a Giro Helmet
The retention system broke, but the helmet itself is fine — here's the fix.
- Answers
- Can you replace a broken Giro helmet retention system instead of the helmet?
- Topics
- Durable · bike · howto · repair
- Full article on willem.com
- https://willem.com/en/2020-07-09_repairing-a-giro-aeon-bicycle-helmet/
Summary
Giro helmets use a Roc Loc retention system — the adjustable dial at the back that holds the helmet on your head. When it breaks (and it does), most people throw the helmet away. But the retention system is a replaceable part.
Full text
The Roc Loc 5 retention system on Giro helmets is a plastic cradle with an adjustment dial. After years of use, the plastic tabs that hold it to the helmet shell can snap. First instinct: buy a new helmet.
Better instinct: order a replacement Roc Loc 5 unit. They're available directly from Giro or through bike shops. The replacement snaps into the same mounting points — no glue, no tools beyond your fingers.
Willem's first attempt was to glue the broken tab — it didn't hold. The proper fix was ordering the correct Roc Loc model for his Giro Aeon and snapping it in. Total time: 5 minutes. Total cost: a fraction of a new helmet.
From Willem's repair culture collection.