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Seatylock makes bicycle locks, including Foldylock folding locks, Mason U-locks and Viking chains.

Buying guide

Find a bike lock that fits your daily parking spot

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Find a bike lock that fits your daily parking spot

Start with the rack you use most. The shape and usable reach of a lock matter as much as how easily you can carry it on a ride.

    Folding lock, U-lock or chain?

    A folding lock packs into a compact mount. A U-lock has a fixed opening; a chain can wrap around a wider anchor. Compare the usable dimensions of the exact model.

    Will it fit my frame and rack?

    Measure the route from the frame around the fixed rack. Check mount clearance, carrying weight and the security certification for that specific model.

    Read buying advice →

    Frequently asked questions

    Where do I complete my purchase?

    Follow the store link to Seatylock. The final options, price and terms appear there.

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    About Seatylock

    Seatylock approaches cycling accessories from the point of view of a parked bicycle. Its name refers to a design that combines a saddle and a folding lock, but that is only one part of the range. The store also separates its products into folding locks, U-locks, chains and hardware for individual components. That organisation is useful because the best place to start is often the physical space between your bicycle and the object you usually lock it to.

    The catalogue also makes a distinction that is easy to overlook: Seatylock and SeatyGo are not interchangeable names. The brand describes Seatylock as a combination of seat and folding lock, while SeatyGo is a detachable seat. That is an especially important detail when choosing a gift for a cyclist who has talked about taking the saddle away when parking.

    Three shapes for three parking situations

    The Foldylock family uses folding sections that can be carried together when the lock is not in use. The Mason family has the fixed shape of a U-lock, while the Viking range uses a chain. Picture those shapes around the rack outside your workplace. A fixed opening can be convenient at a slim stand yet difficult to position at a wide rail. A chain can follow a less direct path, although the length and weight still have to make sense for the ride. Compare the exact models within a family, rather than treating their names as interchangeable.

    Plan how the lock travels

    A lock needs somewhere to go during the other half of the journey. On a small frame, the space taken by a holder may already be occupied by a bottle, a battery or a frame bag. Look at the holder's position and the direction in which the lock comes out. Could you remove it without taking off a pannier? For a chain carried in a bag, consider its weight alongside a laptop or shopping. These questions are worth answering before choosing between two otherwise suitable models.

    Look beyond the frame lock

    A wheel or saddle that can be removed easily presents a different problem from securing the frame itself. Seatylock lists X Lock products for components, as well as saddle-related designs. Check which part the product secures and the hardware fitted to your own bicycle. A component accessory is not a substitute for a lock connecting the bike to a fixed object. If you already have a frame lock you like, this part of the catalogue may be more relevant than buying a second large lock.

    Keep the model details

    If an insurer, workplace or cycle storage facility expects a particular certification, compare its wording with the listing for the exact lock. The brand's security certifications page is a better starting point than guessing from the size of a product in a photograph. Before ordering, note the length or internal dimensions, included mounting hardware and key arrangements. Keep the model name with your purchase record so you can find the right manual, replacement holder or key registration information later. It is much easier to do that while the packaging is still in front of you.

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