---
product_id: 98821665
title: "Kryptonite Keeper Standard U-Lock"
brand: "kryptonite"
price: "289 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Kryptonite"
url: https://www.desertcart.pl/products/98821665-kryptonite-keeper-standard-u-lock
store_origin: PL
region: Poland
---

# 12mm hardened steel shackle 4ft braided steel flex cable Double deadbolt anti-rotation design Kryptonite Keeper Standard U-Lock

**Brand:** kryptonite
**Price:** 289 zł
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in your freedom—because your bike deserves the best guard.

## Quick Answers

- **What is this?** Kryptonite Keeper Standard U-Lock by kryptonite
- **How much does it cost?** 289 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/98821665-kryptonite-keeper-standard-u-lock)

## Best For

- kryptonite enthusiasts

## Why This Product

- Trusted kryptonite brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Transport:** Click-style mounting bracket lets you carry your lock hands-free and ready for action.
- • **Versatile Security:** Includes a 4ft braided steel flex cable to secure wheels or accessories, covering all bases.
- • **Twist-Proof Defense:** Double deadbolt design locks down your bike with anti-rotation tech to thwart thieves.
- • **Lifetime Peace of Mind:** Backed by a limited lifetime warranty, this lock is built to protect your ride for years.
- • **Unbreakable Confidence:** 12mm hardened performance steel shackle resists cutting and twisting for serious security.

## Overview

The Kryptonite Keeper Bike U-Lock Standard combines a 12mm hardened steel shackle with a double deadbolt anti-rotation design and a 4ft braided steel flex cable, delivering medium-level, reliable bike security. It includes a convenient click-style mounting bracket and comes with keys, all backed by a limited lifetime warranty. Perfect for urban cyclists seeking trusted protection with easy transport.

## Description

Shop Kryptonite Keeper Bike U-Lock Standard with Braided Steel Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys. Free delivery and returns on all eligible orders.

Review: Top Quality product. - Exceptional product.
Review: Medium protection - This lock is a good rated lock designed for medium protection. Together with another bike lock it has better chance protecting the bike. It can hold up to 3 MTB.

## Features

- 12mm HARDENED PERFORMANCE STEEL SHACKLE
- New hardened double deadbolt design with anti-rotation resist against twist
- Disc-style cylinder
- Includes click style TRANSPORTATION BRACKET
- Includes 4' flex cable for securing front wheel or other accessories

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GSHZP39 |
| Best Sellers Rank | 2,475 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 7 in Cycling U-Locks |
| Brand | Kryptonite |
| Colour | Black |
| Control Method | Touch |
| Controller Type | Hand Control |
| Country of Origin | Taiwan |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,686) |
| Finish | Painted |
| Global Trade Identification Number | 00720018004370 |
| Included Components | Lock, Flex cable and keys |
| Item Dimensions | 20.3 x 10.2 x 20.3 centimetres |
| Item Type Name | Accessories |
| Item Weight | 930 g |
| Lock Type | Keyed Lock |
| Manufacturer | MDSL4 |
| Manufacturer Warranty Description | Limited lifetime. |
| Material | Alloy Steel |
| Model Number | 004370 Keeper 12 STD & KryptoFlex 410 |
| Recommended Uses For Product | Bike |
| Shape | Cylinder |
| Special Features | Fob Unlock |
| Style | Keeper 12 Standard W/Flex |
| UPC | 720018004370 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Kryptonite
- **Item dimensions L x W x H:** 20.3 x 10.2 x 20.3 centimetres
- **Lock type:** Keyed Lock
- **Material:** Alloy Steel
- **Special feature:** Fob Unlock

## Images

![Kryptonite Keeper Standard U-Lock - Image 1](https://m.media-amazon.com/images/I/819DQXa0DVL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does "keeper 12 standard w/flex" come with a bracket?**
A: Yes and it WILL snap after about 5 months of riding.

**Q: Warning on the item about it containing lead. Has this been a deterrent for any of you?**
A: No

**Q: Since it has a key, is it not easily accessible to lock pickers?**
A: I jhave never known a lock that can't be picked as locks are a deterent, but if a professional lock picker wants to open a lock they will.  The quality of the lock only prolongs time which even thje most complicated locks can be picked withing 3 minutes or less.  I us 3 locks for my bike which detares any theive as they go for the easy pickings, I have had two cycles stollen in my life and one was locked so lock you bike a number of times and don't make it easy.  The truth is they have these portable grinders now which can go through any lock withing 30 to 40 secs so it not just easy pickings if they really want you bike they will have it so like i said multible locks don't maker it easy.

**Q: I lost both keys for the lock, will I be able to get a replacement key?**
A: you could always try asking the seller if they can send you another set of keys
or you could always try looking for others seller's who might be able to help you
but always be careful of who are dealing with whenever buying bike locks from other seller's other than amazon and any other lesser known seller's hope this of help to you

## Customer Reviews

### ⭐⭐⭐⭐⭐ Top Quality product.
*by S***N on 9 March 2026*

Exceptional product.

### ⭐⭐⭐⭐⭐ Medium protection
*by C***O on 24 July 2025*

This lock is a good rated lock designed for medium protection. Together with another bike lock it has better chance protecting the bike. It can hold up to 3 MTB.

### ⭐⭐⭐⭐ Decent, sturdy lock
*by J***A on 13 July 2022*

I was wary of buying this because of the reviews claiming the lock was fiddly to use with the key. I went ahead anyway, and I'm glad I did because it's a really decent lock for the price. Lots of people have said that it's too small, but I've had no trouble at all fastening the lock around a rooted post and my back wheel so it's plenty secure, and it's a standard sized bike. The fact that the base of the lock actually detaches makes it easier in my opinion, though this is something others seemed to dislike. The only reason I've gone for 4 stars instead of 5 is because I *did* have an incident with the key not working very recently, which is what I assume others were talking about, but I was able to see exactly what the issue was and know how to prevent it in the future (hopefully!). Basically, the best way I can think to describe it is that the channel of the lock is made up of segments that, when you put the key in, all twist at the same time. However, when you pull the key out after locking, if you slightly twist the key at all it twists those top few channels, but not the lowest ones. As a result, it's then hard to put the key back in, because the channel is no longer straight (I hope this makes sense!) But the fix is literally just to put the key in as far as you can get it, then twist gently until the channels re-align and you can push the key in all the way. I know that sounds complicated, but it's really not, and if you just experiment with the lock when you receive it, you'll see what I mean and how easy it is to resolve. If I end up having this issue again and it's worse, I'll edit my review, but for now I would say don't let the other reviews put you off. It's a good size, sturdy, and not tricky to use once you suss it out. Also, I noted that some reviews criticised the lock because their bike got nicked, but based on the photos they had secured the bike with the provided cable and then closed the cable with the heavy-duty lock. This is NOT how you lock a bike! Never have the wire cable as your primary source of security – secure the back wheel of the bike to a rooted post and, if you want the extra security, you can loop the wire through your front wheel.

## Frequently Bought Together

- Kryptonite Keeper Bike U-Lock Standard with Braided Steel Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys,Black
- Kryptonite Keeper 785 Bike Chain Lock, 2.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence
- Apple AirTag

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**Shop now:** [https://www.desertcart.pl/products/98821665-kryptonite-keeper-standard-u-lock](https://www.desertcart.pl/products/98821665-kryptonite-keeper-standard-u-lock)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-21*