---
product_id: 98821665
title: "– 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"
brand: "kryptonite"
price: "€ 61.55"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/98821665-keeper-bike-u-lock-standard-with-braided-steel-cable-heavy
store_origin: IE
region: Ireland
---

# 12mm hardened steel shackle 4ft braided steel flex cable Double deadbolt anti-rotation design – 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

**Brand:** kryptonite
**Price:** € 61.55
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in your ride, lock out the worry — because your bike deserves Kryptonite-level protection!

## Quick Answers

- **What is this?** – 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 by kryptonite
- **How much does it cost?** € 61.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/98821665-keeper-bike-u-lock-standard-with-braided-steel-cable-heavy)

## 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

- • **Keyed for Control:** Disc-style cylinder with included keys ensures smooth, reliable unlocking every time.
- • **Versatile Locking:** Includes a 4ft braided steel flex cable to secure wheels or accessories effortlessly.
- • **Twist-Proof Defense:** Double deadbolt design locks down your ride with anti-rotation tech to thwart thieves.
- • **Unbreakable Security:** 12mm hardened steel shackle resists cutting and twisting for ultimate bike protection.
- • **On-the-Go Convenience:** Click-style mounting bracket lets you carry your lock hands-free and ready for action.

## 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 heavy-duty, versatile anti-theft security. Featuring a disc-style cylinder and a convenient click-style mounting bracket, this lock offers professional-grade protection and easy transport for serious cyclists.

## Description

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

## 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 |
|---------------|-------|
| Manufacturer | Kryptonite |
| Part Number | 4370 |
| Item model number | 004370 Keeper 12 STD & KryptoFlex 410 |
| Size | One Size |
| Colour | Black |
| Style | Keeper 12 Standard W/Flex |
| Finish | Painted |
| Material | Alloy Steel |
| Pattern | One size |
| Shape | Cylinder |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Cutting Diameter | 12 Millimetres |
| Plug profile | Included |
| Special Features | Fob Unlock |
| Included Components | Lock, Flex cable and keys |
| Batteries included? | No |
| Batteries Required? | No |
| Assembled Diameter | 12 Millimetres |
| Item Weight | 930 g |

## Product Details

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

## Images

![– 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 - Image 1](https://m.media-amazon.com/images/I/819DQXa0DVL.jpg)

## Available Options

This product comes in different **Style Name** 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

## 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.ie/products/98821665-keeper-bike-u-lock-standard-with-braided-steel-cable-heavy](https://www.desertcart.ie/products/98821665-keeper-bike-u-lock-standard-with-braided-steel-cable-heavy)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-15*