Best Compact Bike Lock

Helmetlok 4104 Carabiner Style Helmet Lock and Extension Black

HelmetLok is a Carabiner-style lock, with a 4 digit programmable locking mechanism, designed to lock your helmet to your bike, while compact enough to fit in your pocket or on your belt loop.
Open the lock, slip the Carabiner through your helmet's shackle, attach it to your bike and lock it, since it's not permanently mounted, you are free to attach your helmet to anywhere on your bike.
The locking arm pivots outwards when open, allowing you to attach it to large diameter handlebars, bike frames, gear racks and grab rails, or around anything with a 1.5" max diameter.
The 4 digit locking mechanism is made from weather resistant zinc alloy and to protect your bike, and the aluminum Carabiner is covered with a protective plastic coating.
Includes the Helmetlok T Bar Extension for helmets utilizing a quick release style buckle, or when you need an extension for a D ring helmet, helping you enjoy the security and freedom of Helmetlok.

More Convenient U-LOCK - From the makers of OTTOLOCK, the SIDEKICK brings innovation to the traditional U-Lock with a compact, lightweight design that....
Lightweight Bike Lock - At only 750 grams (1.65 lbs), the SIDEKICK allows you to lock a single tube to a post or pole at a fraction of the weight of a....
Protect Your Frame - The body of the SIDEKICK is coated in high quality silicone that won’t scratch or damage your bike frame. Made with....
Versatile Security - Use the SIDEKICK on its own or with a secondary lock depending on the length of your stop and location..
Easy-To-Use - The SIDEKICK comes with two keys, and the compact size and bright color options make it great for kids and new riders who want to....

【HEAVY DUTY ANTI THEFT BIKE LOCK】The bike lock was produced with quenching process which greatly enhances the hardness and strength of the lock.....
【INNOVATIVE BIKE LOCK WITH LIGHT】The lock frame is designed with light which is USB charging. High brightness tail lights make your night riding....
【COMPACT & LIGHT WEIGHT】When riding, the bicycle lock can be folded into a 2.4 * 4.7 inch oval by eight sections and combined with the lock frame....
【THREE KEYS PREVENT LOSS】Each lock is equipped with three keys to prevent loss. It is recommended to keep two spare keys at home or give them to....
【24 HOURS SERVICE】- 100% After Sales Service Guarantee. Promise to offer quality products. Please feel free to contact us..

Superior material coating: Made of 190T Oxford cloth, waterproof polyester with PU and UV coating protects bicycles from weather, dust, dirt and sun damage. Ultraviolet-proof up to 50+..
More secure & practical design: Bottom double-stitched elastic hem and special designed buckle for a snug fit keep it secure on those windy days..
Lock-hole special design: Lock hole design at the front wheels area allows using a bike lock with the cover on..
Convenient to carry: Compact size with velcro design that can be tighten on the bike frame or placed inside the basket neatly..
Large Size: Dimensions: 78.7 x 43.3 x 27.5 inches, well-suited for most bike wheel size up to 29"..

Strong and secure hanging-style trunk bike rack for 1-3 bikes.
Secure fit to vehicle with 6-strap tightening system.
Integrated anti-sway cradles and 7" of spacing between bikes prevents contact.
Compact cradle design accommodates a wide variety of bikes and frames.
Quick and easy, tool-free installation. Please note some frame styles may requrie a Thule Frame Adapter to securely attach to hanging bike racks..
Lock bikes to the bike rack with integrated cable lock.
Bike rack arms adjust and fold down when not in use.

... 【Durable and Long-lasting】The entire chain lock is made of 22 links, durable and long-lasting in daily use. It can lock up to 4 bikes together. Don’t rely on a cheap unbranded bike lock and you will be leaving your bike vulnerable..
【Compact & Wide Application】 Max chain length 3.9 feet/ 120cm and weighs 1.50lb/690g. The chain lock is ideal for motorcycles, bikes, e-bikes, gates, fence, and even lawn mowers, ladders, sports equipment etc..

【 High Quality U Lock】:ROCKBRO bike U lock is made of 0.84inch (21.4mm)alloy steel( including 0.36inch silicone cover). The Lock features zinc....
【 Loop Cable &Versatile Use】:Comes with a 3.94 ft double looped ends steel cable, which has t PVC shell. The whole diameter of the cable is....
【Fully Protection】: This bike lock features a hardened steel body and double locking shackle for superior cutting and prying resistance. The lock....
【 Portable Size】:The size of the bike lock is 7.87 *6.3inch. Comes with a mounting bracket that is suitable for all circular seat post in....
【 Easy to Install】: Convenient mounting bracket ensures safe and compact storage when cycling, the lock does’t need to pack your lock in a....

✅Large Size: 104"x 41" x 49" (LxWxH), fits most adult tricycles 24 and 26 inch wheel, up to 3 bikes.
✅Full Bike Protection: Our bike cover with PU and UV coating protect your tricycles from scratches, dust, dirt, sun, rain, and UV-blocking up to 50.
✅Safety Design: Lock hole design at the front wheels area allows for a bike lock with the cover on and buckle to keep it secure on those windy days.
✅Portable & Compact: Our trike cover comes with a waterproof carrying bag for easy storage.
✅Easy to Use: 1, Cover the bike from front to its back. 2, Center the silver top material over the bikes. 3, Tighten buckle on bottom of cover. 4, Lock up. Purchase tricycle cover along with Sibosen adult tricycle for discount!.

... steel cable for greater cut resistance. Protective vinyl coating helps prevent scratching and wear and tear on your bike. This combo u-lock includes an easy to use 4-digit resettable combination and no keys for you to lose. Rear bike light features up to 110 hours of run time.
button cell batteries included. These compact and water-resistant lights are durable and easy to transport.
MULTI-FUNCTIONAL: This 6ft long cable lock is ideal to secure your bicycles, sports equipment, gates and fences, tool boxes & ladders, grills & lawnmowers, skateboards, truck bed and more. Rear Bike light strap-n-clip system allows for easy connection on/off handlebars, seat post, or frame tubes and can be used for hiking, camping, or as a flashlight during outdoor activities..
SPECIFICATIONS: Bike lock cable is 6 ft. (1.8 m) long and 15/32 in. (12 mm) wide in diameter. Rear Bike light features 4 bright LED lights with 3.5 Lumens Max Output.
COMBO SAFE PROGRAM: Register your unique 4-digit combination code on our website and our customer service team will be able to help, should you forget your combination.
LIFETIME WARRANTY AND CUSTOMER SERVICE: Kryptonite is committed to providing our customers with high quality products, ensuring full satisfaction. If you are expe....