Choosing a combination bike lock removes the need for keys and helps you secure your ride quickly in urban environments or during weekend getaways. This guide highlights five highly rated 5-digit resettable locks that blend robust security with practical features. Each product is designed to deter theft, resist weather, and be gentle on bike finishes. We’ve compared length, material strength, and ease of use to help you decide which model best fits your cycling routines and storage conditions.
| Product | Length | Core Material | Special Feature |
|---|---|---|---|
| GOFRIEND 1.2m Black | 1.2m | 12mm cable, ABS frame | Resettable 5-digit code |
| SPGOOD 830mm | 0.83m | 6mm nylon-coated steel | Durable head, 5-digit reset |
| GOFRIEND 1.2m Blue | 1.2m | 12mm cable, ABS frame | Resettable 5-digit code |
| REHKITTZ 120cm | 1.2m | High-strength alloy | Includes fixing bracket |
| Yale YCUL2 | Variable | Combination U-lock | Double rubber bumper |
GoFriend 1.2m Black — High Security Cable Lock

The GoFriend 1.2m black lock combines a sturdy 12mm coated steel cable with a robust ABS-based locking frame. Its 5-digit resettable combination allows quick setup and changes, reducing frustration for daily users. The inner core is designed to resist common theft methods while remaining flexible enough to loop around bike frames, seat posts, and racks. PVC coating protects paintwork from scratches when securing near grills, railings, or luggage. The construction emphasises durability, with a precise keyhole area and strong locking mechanism designed to withstand weather exposure in the UK climate.
Operation is straightforward: set your 5-digit code, then lock by looping the cable, twisting to secure, and leaving with your bike. The coating helps prevent corrosion and reduces wear on both the lock and your bike, making it suitable for daily use in urban areas or longer travels. For riders who park in busy city centres or near transit hubs, this lock provides a practical blend of security and ease, without the need for keys.
SPGOOD 830mm Lock — Durable 5-Digit Lock

SPGOOD’s 830mm lock head combines with a long 830mm cable to offer ample reach for securing bicycles to posts or railings and still have space for multiple bikes if needed. The lock uses a 5-digit resettable code system with a factory default, typically 00000, and a guided process to diarize a personalized combination. The improved lock head material contributes to overall durability, while a nylon-infused mechanism helps resist wear from repeated use. At 750 g, the weight remains manageable for casual riders or commuters who prefer a lightweight but effective security option.
Users benefit from the visible convenience of a resettable 5-digit code, reducing the chance of misplacing keys. The lock is designed for versatility across different securing scenarios—city bikes, scooters, and even gate or door protection—while its coating shields surfaces from scratches. Given its length, this SPGOOD lock is particularly suited for securing single bikes to public racks or fixed infrastructure in busy urban settings across the UK.
GoFriend Blue 1.2m — 5-Digit Flex Cable

This blue variant mirrors the GoFriend design with a 12mm cable and a strong ABS frame. The 5-digit resettable combination ensures you won’t need a key, and the mechanism is described as secure and simple to operate. The inner core is engineered to resist cutting attempts and the PVC coating protects bicycle finishes. The lock’s construction prioritises rigidity under pressure, helping maintain the lock’s shape and resisting distortion after repeated use. It is a practical companion for daily commutes or weekend rides in towns and parks across Britain.
For riders who prioritise minimal weight without sacrificing security, this model provides a balance of durability and ease. Replacing keys can be a nuisance, and the combination system can be an attractive option for students, commuters, and casual riders who park their bikes in busy streets, university campuses, or office locations. The blue finish also adds a touch of personal style while maintaining robust protection.
REHKITTZ 1.2m Chain Lock — 5-Digit Security

The REHKITTZ lock combines a length of 1.2m with a 12mm chain, leveraging a high-security alloy core for enhanced resistance to cutting and tampering. The 5-digit combination offers a broad code space, reducing the risk of guessing attempts. The product notes highlight its multi-market appeal, with a focus on reliability and value, and include a fixing bracket for quick mounting around the bike seat area. The PVC-coated chain provides protection against rust and wear, contributing to a longer lifespan in the face of UK weather and frequent urban exposure.
Key selling points include high durability and a broad combination range, which can be an advantage when you need to secure against opportunistic thieves in crowded spaces. The built-in bracket allows convenient storage on the bike, which is especially helpful for riders who frequently remove their bike from racks or store it in shared spaces. The lock’s ride-ready design makes it suitable for city commutes, campus life, and weekend excursions with confidence in its security performance.
Yale YCUL2 Defendor — Combination U-Lock

The Yale YCUL2 Defendor stands out with a combination U-lock design that emphasizes maximum cut and impact resistance. The double rubber bumper helps protect bike frames from scratches, a noted advantage for those who park near rough surfaces or in high-traffic areas. By switching to a Yale combination, users can abandon keys altogether and rely on a secure code system. This model’s crossbar and hardened shackle emphasize robust defence against forced entry, making it a solid option for securing a bike at home or in busy urban spaces across the UK.
In practice, the Defendor approach provides straightforward security with a focus on edge protection and frame friendliness. The combination mechanism is designed to be reliable and accessible for riders who routinely lock and unlock in different environments, such as commuting routes, campus lots, or outdoor venues. While no lock is theft-proof, the Yale YCUL2 offers a practical layer of deterrence for everyday cycling contexts in the United Kingdom.
Buying Guide: Key Purchase Considerations for 5-Digit Combination Bike Locks
When selecting a 5-digit combination bike lock, consider the following perspectives to balance security, convenience, and lifestyle:
- Locking length and flexibility: Longer cables offer more mounting options (posts, rails, fences) but add weight. Shorter lengths can be easier to manage but limit placement choices.
- Core material and construction: Look for hardened alloys or anti-cut components. A robust ABS frame around the locking mechanism adds rigidity and protects against distortion under pressure.
- Coating and finish: PVC or nylon coatings protect your bike frame from scratches and resist weathering in UK conditions, increasing the lock’s lifespan.
- Code accessibility and memory: A 5-digit code provides 100,000 combinations, reducing the chance of coincidence unlocks. A simple change process helps prevent forgotten codes.
- Weight versus security: Heavier cables typically offer greater security but may be impractical for daily commuting. Weigh options against your typical parking environments.
- Add-ons and compatibility: Some models include fixing brackets or mounting aids, which can simplify securing and storage on-carriage rack, seat stays or frames.
- Weather resistance: UK weather can be punishing. Choose locks with corrosion-resistant materials and weather-friendly coatings for longer service life.
- Price-to-security ratio: While premium models may offer minor security gains, many mid-range options provide ample protection for typical urban use. Consider your risk exposure and parking habits.
Across these five options, the best choice depends on your typical setting—urban commuter streets, campus lots, or more scenic bike paths. For frequent city lockups, a longer cable with a sturdy ABS frame and a reliable 5-digit mechanism provides swift security with minimal fuss. If you often lock to rough or irregular structures, a model with a robust head and reinforced chain construction may be preferable. Always pair a combination lock with sensible security practices, such as securing both the frame and the wheel to a fixed object and avoiding locklessly vulnerable spots.