Alarms & Anti-Theft $150
★★★★★ 4.6/5 2,040 ratings The URBAN UR14S is a stainless-steel motorcycle disc lock with a built-in 120dB alarm, LED, and an optional warning-only mode. It uses a 14mm double-locking design and is positioned for riders who want strong physical security plus an audible deterrent, with the main caveat being that some buyers find the alarm louder in theory than in practice.
Alarms & Anti-Theft $19.96
★★★★★ 4.5/5 10,984 ratings The YOHOOLYO alarm disc lock is a metal, waterproof disc brake-style lock designed for motorcycles, bikes, and scooters. It adds a motion-triggered 110 dB alarm with a short warning period, plus a 5ft reminder cable to help prevent “left-the-lock-on” mistakes. Best as a loud deterrent and secondary layer, not as your only theft protection.
Alarms & Anti-Theft $11.99
★★★★★ 4.5/5 12,455 ratings A keyless 5-digit combination chain lock designed for everyday bike protection, with a thick manganese-steel chain, zinc-alloy lock core, and a resettable code. It’s praised for being easy to configure and sturdy, with one notable durability tradeoff: the scratch-resistant fabric cover may break down over extended outdoor use.
Alarms & Anti-Theft $33.96
★★★★★ 4.6/5 3,864 ratings The Kryptonite Keeper 5-S2 is a compact, key-operated disc lock designed for short-term motorcycle, scooter, or bicycle security. Buyers consistently highlight how simple it is to use and how solid it feels, with the included reminder cable helping prevent “ride-away” mistakes. The main tradeoff to consider is cosmetic durability, since some users report paint chipping with bumps.
Alarms & Anti-Theft $16.88
★★★★★ 4.5/5 5,912 ratings The AGPTEK 110db motorcycle brake lock is a portable, key-secured disc lock with a built-in vibration-triggered alarm and a longer 5.2 ft reminder cable for easier placement. It is designed for outdoor use with waterproof, corrosion-resistant, cut-resistant, and heat-tolerant materials, but buyers should expect very high sensitivity, which can mean alarms during rain or light movement.
Alarms & Anti-Theft $20.99
★★★★★ 4.6/5 3,599 ratings A compact, waterproof disc brake alarm lock designed to deter bike theft with a built-in shock/motion sensor and an approximately 110dB alarm. It’s a budget-friendly option for riders who mainly want a visible deterrent plus a loud audible signal when someone tampers with the rotor, with a main caveat: sensitivity can lead to unexpected beeps or alarms in windy or rainy conditions.
Alarms & Anti-Theft $93.48
★★★★★ 4.4/5 656 ratings Kryptonite’s Keeper folding lock uses 3mm hardened steel bars in a compact, portable design with a mounting bracket, making it a practical choice for short to moderate parking stops. It’s designed for versatility (wrapping around posts or oddly shaped objects), but it’s not meant to compete with the toughest U-lock or chain options in high-threat areas.
Alarms & Anti-Theft $34.92
★★★★★ 4.5/5 1,436 ratings The Urban UR59 mini U-style disc lock is a compact, key-operated hardened-steel option designed to help deter theft for motorcycles, scooters, and eBikes. It uses a double-locking design (fork locked at both tips) and a bright yellow reminder cable for better day-to-day usability, with a main tradeoff being that you will still need compatible mounting points for the disc or chain setup you prefer.
Alarms & Anti-Theft $33.78
★★★★★ 4.4/5 1,432 ratings A compact, heavy-duty handlebar grip lock designed to deter quick theft by clamping to handlebars up to 1.5 inches and locking via the brake/lever area. It installs quickly, includes adapters for a tighter universal fit, and comes with a lever protector and two keys, but it works best as a convenience deterrent rather than a standalone solution.
Alarms & Anti-Theft $36.94
★★★★★ 4.4/5 1,258 ratings The Urban UR140 is a keyless 4-digit carabiner lock kit designed to secure a motorcycle helmet, and also works with bike frames, saddles, and luggage via a braided steel cable and T-buckle adapter. Buyers highlight solid build quality and easy combination changes, with the main caveat being that the attachment area may have limited “grip” depending on helmet shape.
Alarms & Anti-Theft $26.22
★★★★★ 4.3/5 1,624 ratings A compact, hardened-steel folding lock built for everyday stops, errands, and quick lockups where you want more security than a basic cable. Strong points include an included mounting bracket, flexible locking positions, and a paint-scratch-safe coating, with the main caveat being that the bracket/tool instructions may be frustrating for some buyers.
Alarms & Anti-Theft $52.42
★★★★★ 4.4/5 502 ratings The Kryptonite heavy duty alarm disc lock is a compact, zinc diecast disc brake pin lock with an integrated motion-sensitive 120dB siren. Buyers like how quickly it locks on and how it deters tampering, with the main caveat being that alarm sensitivity may feel limited for casual bumps or riding in which you expect it to trigger more easily.
Alarms & Anti-Theft $55.96
★★★★★ 4.5/5 444 ratings The Kryptonite Evolution is a heavy-duty ground anchor designed to create a permanent locking point for bikes and e-bikes, including outdoor use. It uses a hardened steel shackle and base, plus an anti-pull mounting approach with drill-bit included, but installation prep matters (and the included bit may be limited).
Alarms & Anti-Theft $69.99
★★★★★ 4.5/5 324 ratings A 47-inch folding bike lock designed for high-coverage parking, including ebikes and scooters. Buyers highlight the sturdy, secure feel and longer length for locking multiple items, with the main tradeoff being notable weight and a less durable frame mount/bracket experience for some users.
Alarms & Anti-Theft $19.99
★★★★★ 4.6/5 1,088 ratings The WSDCAM vibration-activated bike alarm is a compact, USB-rechargeable option for shoppers who want a loud deterrent plus remote control. It offers adjustable volume and sensitivity, includes multiple mounting approaches, and is built for outdoor use. The main tradeoff is that fit and placement matter, since the alarm can be noticeably less effective when installed inside enclosed or muffling surfaces.
Alarms & Anti-Theft $21.97
★★★★★ 4.5/5 909 ratings The Master Lock #99KA is a straightforward cable helmet lock kit designed to deter casual theft and help keep your helmet from being knocked off your bike. Based on buyer feedback, it’s easy to attach, convenient for quick parking stops, and offers a practical way to secure helmets in everyday situations, with the main tradeoff being that it is not a “bolt-cutter proof” lock.
Alarms & Anti-Theft $23.99
★★★★★ 4.6/5 801 ratings The ONVIAN rechargeable disc brake lock adds a motion-sensor alarm (120dB) and a 6-foot high-tensile steel reminder cable, designed for 7mm-pin disc brake fit. It prioritizes convenience over button-battery locks, with a sealed charging port for wet-weather use. The main tradeoff is that you need to keep it charged and confirm disc-brake pin compatibility before buying.
Alarms & Anti-Theft $12.99
★★★★★ 4.6/5 962 ratings This alarm disc lock set is designed to deter theft by combining a physical disc-brake style lock with an automatic vibration/shock alarm (up to 110 dB). It is a practical add-on for motorcycles, e-bikes, and scooters when you park outdoors, with straightforward one-button arming and a waterproof, rust-resistant steel build for everyday weather.
Alarms & Anti-Theft $23.99
★★★★★ 4.5/5 476 ratings The ONVIAN disc brake lock is designed to deter theft with a loud alarm and a rechargeable, waterproof build. It is a straightforward anti-theft add-on for bikes with disc brakes, but one key tradeoff reported by buyers is that the alarm sensitivity may not trigger as easily as expected.
Alarms & Anti-Theft $10.59
★★★★★ 4.4/5 994 ratings These saddlebag lock mounting hardware replacements swap out Harley Touring 1/4-turn quick disconnects to add a theft deterrent setup without drilling. Review evidence points to easier, quicker installation and good fit, with the main limitation being correct Harley Touring year/fitment matching and using the right adapters/gaskets for your setup.
Alarms & Anti-Theft $25.99
★★★★★ 4.6/5 397 ratings A rechargeable disc brake alarm lock designed to deter tampering with a 120dB alert, built-in motion/shock sensing, and a waterproof body. Best for riders who want compact added security on motorcycles and other disc-brake bikes, with the main caveat that the rotor must have holes and be under the stated thickness range to fit properly.
Alarms & Anti-Theft $16.99
★★★★★ 4.5/5 576 ratings A compact 2-pack of 4-digit cable helmet locks designed to deter opportunistic theft while you park. It is easy to set your own code and coils down for pocket-friendly carry, with a main limitation that the cable length may feel a bit tight for certain, harder-to-thread situations.
Alarms & Anti-Theft $13.99
★★★★★ 4.5/5 665 ratings These stainless-steel saddlebag lock replacements are designed to swap in for Harley Touring-style quarter-turn quick disconnects, helping discourage theft and reduce the chance of loose saddlebag lids. Best for riders who want a tighter, more secure mounting with a relatively quick, no-drill install, but fitment details and supplied hardware may require careful setup.
Alarms & Anti-Theft $29.99
★★★★★ 4.8/5 294 ratings Amazicha’s saddlebag lock hardware bolt kit is a vehicle-specific upgrade for select Harley Touring and Softail models. It’s designed to install more easily than older styles, using a floating gasket approach for alignment and a “click” feel when tightened, with metal anti-rust construction and improved grip features to help keep the lever bolts secure.
Alarms & Anti-Theft $13.99
★★★★★ 4.3/5 574 ratings A compact handlebar-style anti-theft lock meant to clamp over the grip and help immobilize movement. It’s built from CNC aluminum for durability and is marketed as weather-resistant, but it’s only a fit for certain grip sizes, so measure first. If you want an easy-to-carry deterrent for a dirt bike, moped, scooter, or ATV, this type of throttle/grip lock can be a practical choice.
Alarms & Anti-Theft $59.99
★★★★★ 4.5/5 109 ratings A vehicle-specific tour trunk latch kit for select Harley Touring models (2014-2025). Reviewers frequently mention a tight, secure fit, smooth opening and closing, and a clean black finish. The main catch is making sure you have the exact trunk setup and model/year match before ordering.
Alarms & Anti-Theft $21.99
★★★★★ 4.3/5 283 ratings A heavy-duty keyed motorcycle brake and handlebar lock from Matework, built from CNC aluminum alloy and finished with anodizing for weather resistance. It includes a helmet lock, keys, and anti-scratch pads for the handlebar and brake area, with quick installation claimed by the brand. Buyer feedback highlights strong deterrence and a sturdy feel, with limited evidence on fit across all bikes.
Alarms & Anti-Theft $29.99
★★★★★ 4.2/5 164 ratings A compact key-lock combo designed to secure your front brake and clamp your helmet to the handlebar on motorcycles, bikes, ATVs, and scooters. It works best for riders whose handlebar diameter falls within 1.3–1.5 inches, and it can feel fiddly if your clearances or grip fit are slightly off.
Alarms & Anti-Theft $22.99
★★★★★ 4.4/5 194 ratings This heavy-duty motorcycle lock pairs a handlebar lock with a detachable helmet lock to secure bike and gear in one system. It’s designed for a wide range of bikes (with a stated handlebar diameter range) and uses hardened aluminum alloy and a key lock cylinder, with a weather-resistant coating. The main tradeoff: like any keyed locking setup, it should be treated as theft deterrence, not a standalone guarantee.
Alarms & Anti-Theft $12.88
★★★★★ 4.4/5 262 ratings The Windance 2 Pack is a keyed-alike, anti-tamper motorcycle helmet lock designed for 7/8" (22mm) handlebars and compatible mounting spots like crash bars or certain racks. Buyers generally find it easy to use and helpful for short stops, with the main caveat that it is not intended to protect a high-end helmet against a determined thief.
Alarms & Anti-Theft $19.99
★★★★★ 4.3/5 149 ratings The MEETLOCKS motorcycle helmet cable lock is a keyless, resettable 4-digit combination lock designed to help secure a helmet to your bike, with a retractable cable and a T-bar accessory for common helmet quick-release buckles. It is best for riders who want fast, small-and-carry convenience and a deterrent-style setup, with the main caveat being compatibility with specific helmet micro-ratchet widths.
Alarms & Anti-Theft $7.13
★★★★★ 4.3/5 340 ratings The QWORK 2-pack disc brake wheel lock is a compact, alloy-steel keyed padlock designed to help deter quick wheel theft by locking through disc brakes up to 7mm thick. It’s easy to use and easy to carry, but it is positioned as minimum security, and you should expect to manage two keyed locks (and multiple keys) rather than one universal key.
Alarms & Anti-Theft $9.99
★★★★★ 4.4/5 175 ratings A metal battery safety pack cover lock with two keys, built for pairing with many motorcycle, e-bike, and scooter battery setups. It uses a 10mm cylinder and mounting hole centers of 15.5mm, but “universal” fit depends on matching your battery box dimensions and hole layout.
Alarms & Anti-Theft $29.95
★★★★★ 4.3/5 51 ratings The Original Gator all-metal U-lock holder is built to clamp down without wobble, made for round-tube frames and compatible with Kryptonite and ABUS-style U-locks. It is a strong fit for daily commuters and e-bike riders who want a quieter, more secure carry than plastic mounts, with the main catch being that it will not work on oval tubes.
Alarms & Anti-Theft $33.95
★★★★★ 4/5 34 ratings A compact vibration-based bike and gear alarm with a key-fob style remote. It aims to deter theft with an up to 110dB siren, plus instant remote alerts and a “find item” locator chime. Best for riders who want discreet mounting and shared control across remotes, but it can be finicky if the remote is accidentally pressed or if it loses sync.
Alarms & Anti-Theft $19.99
★★★★★ 4.6/5 57 ratings A rechargeable disc brake lock with a built-in 120 dB alarm, vibration-triggered alerting, and an IP67 weather rating. Best for riders who want a key-on, motion-trigger theft deterrent with a reminder cable for locking routines.
Alarms & Anti-Theft $9.99
★★★★★ 4.4/5 91 ratings This compact aluminum gear locks jammer is designed to help prevent gear rotation during maintenance on many ATVs and motorcycles, including some CVT and manual transmission setups. Buyers report it does what it’s meant to do for clutch basket and crank work, though review evidence is limited and one user mentioned it may start to break with use.
Alarms & Anti-Theft $9.49
★★★★★ 4.5/5 94 ratings The KVAEY motorcycle helmet lock is a universal, key-lock style accessory designed to secure a helmet to your bike using a reinforced aluminum alloy mount. It’s intended for easy installation, works with 1-inch handlebars, and can also double as a place to hang small items. The main tradeoff to consider is that correct initial positioning matters, and moving it later may be harder based on user feedback.
Alarms & Anti-Theft $23.99
★★★★★ 4.8/5 36 ratings The IRON JIA'S motorcycle disc lock is an all-mechanical, alarm-free option designed to immobilize compatible disc brake rotors. It uses a waterproof, rust-resistant aluminum alloy build, includes two keys, and adds a bright reminder cable to help prevent riding off with the lock attached.