---
product_id: 177195004
title: "OTTOLOCK Sidekick Compact U-Lock, Black | Lightweight Anti-Theft Bike Lock for Road, Mountain & Electric Bikes with Keys"
brand: "ottolock"
price: "¥14782"
currency: JPY
in_stock: true
reviews_count: 13
category: "Ottolock"
url: https://www.desertcart.jp/products/177195004-ottolock-sidekick-compact-u-lock-black-lightweight-anti-theft-bike
store_origin: JP
region: Japan
---

# 12mm hardened steel double shackle 1.65 lbs ultra-lightweight Anti-rotation deadbolt tech OTTOLOCK Sidekick Compact U-Lock, Black | Lightweight Anti-Theft Bike Lock for Road, Mountain & Electric Bikes with Keys

**Brand:** ottolock
**Price:** ¥14782
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in your ride, unlock your freedom.

## Quick Answers

- **What is this?** OTTOLOCK Sidekick Compact U-Lock, Black | Lightweight Anti-Theft Bike Lock for Road, Mountain & Electric Bikes with Keys by ottolock
- **How much does it cost?** ¥14782 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/177195004-ottolock-sidekick-compact-u-lock-black-lightweight-anti-theft-bike)

## Best For

- ottolock enthusiasts

## Why This Product

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

## Key Features

- • **Urban-Ready Fit:** Compact 2.75 x 5.75 inch opening perfect for quick stops and tight city locking spots.
- • **Keyed Convenience:** Three keys included for hassle-free access—security that travels as light as you do.
- • **Scratch-Free Style:** Silicone-coated body guards your bike’s finish while keeping a modern, stealthy look.
- • **Cut-Resistant Armor:** 12mm hardened steel shackle engineered to withstand cutting and leverage attacks.
- • **Featherweight Security:** Carry supreme protection without the bulk—just 1.65 lbs of sleek defense.

## Overview

The OTTOLOCK Sidekick is a compact, ultra-lightweight U-lock designed for road, mountain, and electric bikes. Featuring a 12mm hardened steel double shackle with anti-rotation deadbolt technology, it offers robust cut resistance. Its silicone-coated body prevents frame scratches, while the 2.75 x 5.75 inch opening fits most urban locking needs. Includes three keys and weighs just 1.65 lbs, making it the perfect blend of portability and security for the modern cyclist.

## Description

Buy OTTOLOCK Sidekick Compact U-Lock – Lightweight Anti-Theft Bike Lock for Road, Mountain & Electric Bikes with Keys: U-Locks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfect size! - Amazing lock! Great compact size! Feels very well made.
Review: Durable, but small. Security options limited. - Cool and sturdy little lock. Useful for locking your tire rims to the frame. This is a great lock, but if you do not have access to bicycle racks or thinner poles, I would suggest that you purchase a larger lock. This one is very small and may pose a problem with those who live in cities where locking options are sparse or bicycle unfriendly.

## Features

- Ultra-lightweight and compact at just 1.65 lbs (750g), the OTTOLOCK SIDEKICK U-Lock offers superior portability for your cycling adventures without compromising security.
- Constructed with a 12mm hardened steel double shackle featuring anti-rotation deadbolt technology, delivering robust resistance against cutting and leverage attacks for reliable bike protection.
- Silicone-coated lock body prevents paint scratches and frame damage, making it ideal for high-end bikes and delicate finishes while maintaining a sleek, stylish black design.
- Designed for versatile use, its 2.75 x 5.75 opening fits securely around a single tube and post, perfect for quick stops or securing your bike in urban environments, school, or commute scenarios.
- Includes three keyed entries for convenience and easy access, with a minimalist, travel-friendly profile that easily fits in a bag or pack, ensuring your bike stays secure on the go.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B082FQLLWV |
| Additional Features | Cut Resistant, Portable, Scratch-Resistant |
| Best Sellers Rank | #18,885 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #18 in Bike U-Locks |
| Brand | OTTOLOCK |
| Brand Name | OTTOLOCK |
| Color | Black Compact |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.5 out of 5 stars 368 Reviews |
| Finish Types | Natural |
| Included Components | 3 keys |
| Item Dimensions | 5 x 1.5 x 7.75 inches |
| Item Weight | 1.65 Pounds |
| Item dimensions L x W x H | 5 x 1.5 x 7.75 inches |
| Lock Type | Key Lock |
| Manufacturer | OTTO DesignWorks |
| Manufacturer Part Number | 8H-XE8Z-1DFW |
| Manufacturer Warranty Description | Limited Warranty |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Name | Sidekick |
| Model Number | UL-BK-SM |
| Number of Pieces | 1 |
| Recommended Uses For Product | Bike Security, Travel |
| Shape | Round |
| Special Feature | Cut Resistant, Portable, Scratch-Resistant |
| Style Name | Modern |
| UPC | 859777005752 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** OTTOLOCK
- **Item dimensions L x W x H:** 5 x 1.5 x 7.75 inches
- **Lock Type:** Key Lock
- **Material:** Alloy Steel
- **Special Feature:** Cut Resistant, Portable, Scratch-Resistant

## Images

![OTTOLOCK Sidekick Compact U-Lock, Black | Lightweight Anti-Theft Bike Lock for Road, Mountain & Electric Bikes with Keys - Image 1](https://m.media-amazon.com/images/I/6131tuOyNvL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect size!
*by M***C on April 23, 2026*

Amazing lock! Great compact size! Feels very well made.

### ⭐⭐⭐⭐⭐ Durable, but small. Security options limited.
*by M***N on July 21, 2020*

Cool and sturdy little lock. Useful for locking your tire rims to the frame. This is a great lock, but if you do not have access to bicycle racks or thinner poles, I would suggest that you purchase a larger lock. This one is very small and may pose a problem with those who live in cities where locking options are sparse or bicycle unfriendly.

### ⭐⭐⭐⭐⭐ bought 4 years ago STILL GOING STRONG
*by J***P on June 29, 2024*

I bought one of these in may 2020 to use along with another small Krypnonite mini on a beater bike in NYC. I dont leave my bike out at night bcz thats a big NO NO here in the city, but ive left it locked up for most of the day at times & this one worked perfectly as an additional security. My beater recently died (RIP my friend) & I now have a somewhat nicer bike with more expensive components on it so Im upgrading my locking game however I will still also use this lock which is STILL functioning perfectly -I never had an issue with it, at this point the rubber coating is tearing off in the u area but other than that is still going strong. Id definitely recommend as an extra backup lock.

## Frequently Bought Together

- OTTOLOCK Sidekick Compact U-Lock | Lightweight Silicone-Coated Bike Lock (Black)
- OTTOLOCK HEXBAND Lightweight, Extra Tough Combination Bike Lock | Steel & Kevlar | Ideal for Cycling, E-Mobility, & Outdoor Gear (Grey, 30 Inch)

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**Shop now:** [https://www.desertcart.jp/products/177195004-ottolock-sidekick-compact-u-lock-black-lightweight-anti-theft-bike](https://www.desertcart.jp/products/177195004-ottolock-sidekick-compact-u-lock-black-lightweight-anti-theft-bike)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-21*