SATO RACING Helmet Lock for 2021-24 Aprilia RSV4 and Tuono V4 1100 (part# A-V421HL) is a tough piston-type lock attached to a black-anodized aluminum mounting bracket. It installs in a convenient location under the seat on the left side, giving you a secure way to stow your helmet when parked, and making your Aprilia more practical for everyday use. Includes 2 keys. 

NOTE: In some cases, the D-ring on the helmet's strap might be a tight reach to the lock clasp. There's an optional accessory we call a HELMET ANCHOR that is very useful in these situations. it is an anchor-shaped aluminum bracket with a hole on top. You slide it through the D-ring on the helmet and loop the hole part through the lock clasp.

Here is the link to our Helmet Anchor (part# HLA-S):

https://www.ebay.com/itm/265751853289

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Limited warranty covers cosmetic or functional defects that are apparent when the part is new, and does not cover issues such as normal wear and tear that may arise due to regular use. NOTE: While SATO RACING designed and fabricates the aluminum parts for our Helmet Locks, the lock mechanism itself is from a 3rd party supplier, and while it works great, the black painted finish of the lock casing is of 'industrial' quality and may show some minor imperfections. This is normal and is not covered by the warranty.

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All SATO RACING parts are designed and manufactured in Osaka, Japan by Sato Racing Inc (AKA Baby Face Japan), a well-regarded boutique manufacturer of fine quality specialized racing parts for sport bikes for over 20 years. All parts are shipped from SATO RACING's US headquarters in Sand City, California, and are usually shipped within a day of the order being placed. Delivery within the US is usually in 1-4 business days, depending on location.