Portable Bike Chain Lock with 4-Digit Code 1 m

4-digit combination anti-theft chain for bicycles, mountain bikes, electric bikes and cycling accessories. Length: 1 metre. Weight: 350 g. Portable format, chain structure with rust-resistant coating, suitable for everyday use to secure a bike to a fixed point or to temporarily secure various light mobility equipment.

This combination bike lock is designed for users looking for a simple, keyless solution to protect a city bike, mountain bike, electric bike or certain personal mobility accessories. The 4-digit code system allows convenient opening and closing, while avoiding the need to manage separate keys. Its length of around 1 metre makes it easy to fasten around a frame, a wheel or a suitable support depending on the usage configuration.

The chain design is suitable for everyday security needs during short or medium-term parking. The product is designed for urban cyclists, leisure bike users, mountain bike owners, as well as people using an electric bike for daily journeys. Thanks to its portable format, it can be carried in a basket, a bag or attached with appropriate storage accessories.

Technical specifications

• Product type: chain bike lock
• Locking system: 4-digit combination
• Stated length: 1 metre
• Stated weight: 350 g
• Structure: portable anti-theft chain
• Advertised features: anti-theft, rust-resistant, thickened format
• Category: bike security accessory / combination lock / security chain

The 4-digit combination format is suitable for people wanting a keyless bike lock for faster everyday use. The 1 metre length provides some flexibility for connecting the bike frame to a stand, barrier or compatible fixed support. The 350 g weight remains suitable for regular carrying, making it a practical accessory for urban travel, bike rides or parking near a workplace, place of study or shop.

Compatibility and accessories

• Compatible with many city bikes, mountain bikes, electric bikes and leisure bicycles
• May also be suitable for securing certain accessories or small equipment, depending on the dimensions of the attachment point
• Suitable use for bike frame, wheel or frame + fixed support combination depending on the situation
• Product belonging to the family of bike chain locks, combination padlocks and anti-theft accessories for bicycles

Installation

1. Choose a solid and stable fixed point.
2. Pass the chain around the bike frame and, if possible, include a wheel to reinforce security.
3. Position the chain correctly without excessive twisting.
4. Set or use the 4-digit combination according to the product mechanism.
5. Check that the lock is properly engaged before leaving the bike.

Usage advice

• Recommended for cyclists, students, urban commuters and electric bike users looking for a portable lock.
• Preferably use on a sturdy fixed support, in a visible and busy area.
• For better protection, avoid leaving the chain in direct contact with the ground whenever possible.
• Choose a memorable but not obvious combination.
• Clean the outer surface periodically to keep it in good usable condition, especially after exposure to moisture.

Other information

This bike security lock focuses on simple use, practical transport and a code-based fastening system suited to modern travel habits. Its chain structure with advertised rust-resistant property is intended for regular outdoor use, subject to normal maintenance. This model is a suitable solution for people looking for a 1 metre bike chain lock, a combination mountain bike lock or a compact and easy-to-use electric bike lock.

Before use, it is advisable to check the required dimensions according to the type of frame, wheel size and available anchor point. This product is intended for securing a bike or compatible equipment as part of normal use. The effectiveness of protection also depends on installation conditions, the parking location and the correct use of the locking system.