Master Lock 8320D Black Bike Lock with Key, Standard Size U-Lock
For the everyday cyclist who needs reliable protection for their bike on city streets or at the park, this Master Lock U-lock is your go-to defense against theft. While many focus on security, we see it as your ticket to worry-free rides, letting you enjoy your time without constantly checking on your bike.
The hardened steel body feels solid in your hand, and the double locking shackle clicks into place with a satisfying snap that signals real resistance to prying. You will appreciate the protective vinyl coating—it keeps your bike frame scratch-free when you lock up at a crowded rack. With the integrated disc keyed locking mechanism, it resists picking attempts, so you can trust it during quick stops. The included carrier bracket makes it easy to transport, so you are always prepared. This lock works for bicycles and other outdoor equipment, offering anti-theft peace of mind wherever you go.
Features
- Double locking shackle for superior pry resistance
- Integrated disc keyed locking mechanism for maximum pick resistance
- Protective vinyl coating helps prevent scratching
- Carrier bracket included for easy transportation
- Hardened steel body resists cutting, sawing and prying
General specs
- Brand: Master Lock
- Model: 8320D
- Seller: Amazon
- ID: B00QJRKSTQ
- Material: Steel
- Lock Type: U-Lock
- Dimensions: 7.42, 1.35, 9.8
- Unlock Methods: Key
- First listed by seller: 2/7/26
If you are interested in more details, you can find full information on the seller's page.
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Price History for seller Amazon
Shipping options
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Master Lock 8320D Black
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| Brand | Master Lock | Kryptonite | Sportneer | Sportneer | Dhiedas | NDakter |
| Model | 8320D | 005292 | Y23-82000-03-A | ALU-01 | U9 | U-lock with Key |
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| Price | $12.37 | $19.99 | $29.99 | $25.99 | $79.99 | $31.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | May 28, 2026 | May 28, 2026 | May 7, 2026 | Mar 24, 2026 | May 28, 2026 | May 13, 2026 |
| Material | Steel | Steel | Zinc Alloy | Zinc Alloy, Steel | Steel | Steel |
| Lock Type | U-Lock | U-Lock | U-Lock | U-Lock | U-Lock | U-Lock |
| Dimensions | 7.42, 1.35, 9.8 | 16.51, 25.4, 4.45 | 12.75, 7.29, 1.70 | 6.25, 11.5, 0.71 | 2.95, 21.59, 16.51 | 17.78, 3.18, 27.94 |
| Unlock Methods | Key | Passcode | Key | Key | Fingerprint, App, Key | Passcode, Key |
| Alarm | Yes | Yes | Yes | |||
| Weight | 0.45 | 1.30 | 2.5 | 1.97 | 1.53 | |
| Cable Length | 0.0 | 1.52 | 1.5 | 1.52 | ||
Master Lock 8320D Black
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