---
product_id: 258344745
title: "KMC Z51-OL Half Link 6/7/8 Speed 1.3cm x 0.2cm Black"
brand: "kmc"
price: "$666"
currency: MXN
in_stock: true
reviews_count: 5
category: "Kmc"
url: https://www.desertcart.mx/products/258344745-kmc-z51-ol-half-link-6-7-8-speed-1
store_origin: MX
region: Mexico
---

# Universal multi-brand compatibility Sleek black alloy steel Precision 1/2 link sizing KMC Z51-OL Half Link 6/7/8 Speed 1.3cm x 0.2cm Black

**Brand:** kmc
**Price:** $666
**Availability:** ✅ In Stock

## Summary

> 🔗 Elevate your ride with the ultimate chain length hack!

## Quick Answers

- **What is this?** KMC Z51-OL Half Link 6/7/8 Speed 1.3cm x 0.2cm Black by kmc
- **How much does it cost?** $666 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/258344745-kmc-z51-ol-half-link-6-7-8-speed-1)

## Best For

- kmc enthusiasts

## Why This Product

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

## Key Features

- • **Sleek & Durable:** Crafted from robust alloy steel finished in matte black for a stealthy, professional look.
- • **Perfect Chain Fit:** Adjust your single-speed chain length with surgical precision using just one half link.
- • **Non-Reusable Design:** Engineered for a secure, one-time installation ensuring maximum chain tension and safety.
- • **Lightweight Efficiency:** At just 4.54 grams, it adds zero bulk while optimizing drivetrain performance.
- • **Cross-Brand Compatibility:** Seamlessly works with Campagnolo, Connex, KMC, Shimano, and SRAM chains.

## Overview

The KMC Z51-OL Half Link is a precision-engineered, black alloy steel connector designed to fine-tune single-speed bike chains. Compatible with top drivetrain brands like Shimano, SRAM, and Campagnolo, it offers a lightweight (4.54g), non-reusable solution to achieve perfect chain tension with just one half link.

## Description

Use to create your desired chain length in single-speed applications. Only one half link is needed.FeaturesNon-reusableItem SpecificationsColor: BlackWidth: 9.4Chain Compatibility: CampagnoloChain Compatibility: ConnexChain Compatibility: KMCChain Compatibility: ShimanoChain Compatibility: SRAMDrivetrain Speeds: 1Reusable: Yes

Review: Works perfect. I have mine connected to the masterlink (SRAM Powerlink). No problems. What is there else to say? It works.
Review: A very simple device. Allows one to change the length of a bicycle chain by 1 link, and does that just fine. Now my single speed has the proper chain tension. KMC is a quality brand, so I don't expect this item to be any different. My only objection, and the reason I knocked off one star, is it's kinda expensive for what it is. You can buy an entire KMC chain for not much more than the price of this 1/2 link. But, if you gotta have it....

## Features

- Non-reusable
- Width: 9.4
- Chain Compatibility: Campagnolo
- Chain Compatibility: Connex
- Chain Compatibility: KMC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000C14LBG |
| ASIN  | B000C14LBG |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #191,751 in Sporting Goods ( See Top 100 in Sporting Goods ) #906 in Bike Drivetrain Components |
| Color | Black |
| Customer Reviews | 3.6 3.6 out of 5 stars (56) |
| Customer reviews | 3.6 3.6 out of 5 stars (56) |
| Date First Available | 25 July 2013 |
| Date First Available  | 25 July 2013 |
| Department  | unisex-adult |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 4.54 g |
| Item model number | 132964 |
| Item model number  | 132964 |
| Manufacturer | KMC |
| Manufacturer  | KMC |
| Material | Alloy Steel |
| Part number | Z51-OL |
| Product Dimensions | 1.02 x 2.03 x 1.14 cm; 4.54 g |
| Product Dimensions  | 1.02 x 2.03 x 1.14 cm; 4.54 g |
| Size | 3/32in - Z51-OL |
| Teeth Per Inch | 0.5 Inches |

## Product Details

- **Brand:** KMC
- **Item pitch:** 0.5 Inches
- **Load capacity:** 1.5E+2 N
- **Material:** Alloy Steel
- **Recommended uses for product:** creating and adjusting chain length in single-speed bicycle applications

## Images

![KMC Z51-OL Half Link 6/7/8 Speed 1.3cm x 0.2cm Black - Image 1](https://m.media-amazon.com/images/I/51zbGDzfsaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***B on 23 November 2011*

Works perfect. I have mine connected to the masterlink (SRAM Powerlink). No problems. What is there else to say? It works.

### ⭐⭐⭐⭐ Review
*by P***N on 19 July 2025*

A very simple device. Allows one to change the length of a bicycle chain by 1 link, and does that just fine. Now my single speed has the proper chain tension. KMC is a quality brand, so I don't expect this item to be any different. My only objection, and the reason I knocked off one star, is it's kinda expensive for what it is. You can buy an entire KMC chain for not much more than the price of this 1/2 link. But, if you gotta have it....

### ⭐ Review
*by D***L on 11 November 2025*

Fell apart after first ride part failure

## Frequently Bought Together

- KMC Bicycle Chain Half-Link
- KMC Z410-OL Half Link, 1/8-Inch
- Schwinn Bike Chain, Basic and Derailleur Steel Replacement Chains, 112 Total Links, Sized to Fit Derailleur & Non-Derailleur Bikes, Single or Mulit-Speed Bikes, Bike Replacement Parts and Accessories

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.mx/products/258344745-kmc-z51-ol-half-link-6-7-8-speed-1](https://www.desertcart.mx/products/258344745-kmc-z51-ol-half-link-6-7-8-speed-1)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-24*