---
product_id: 500071567
title: "Ultegra CS-R8100 12-Speed Road Cassette"
brand: "shimano"
price: "€ 272.56"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/500071567-ultegra-cs-r8100-12-speed-road-cassette
store_origin: IE
region: Ireland
---

# Durable steel & aluminum Lightweight at 291g/345g 12-speed precision Ultegra CS-R8100 12-Speed Road Cassette

**Brand:** shimano
**Price:** € 272.56
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Shift into greatness with Shimano!

## Quick Answers

- **What is this?** Ultegra CS-R8100 12-Speed Road Cassette by shimano
- **How much does it cost?** € 272.56 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/500071567-ultegra-cs-r8100-12-speed-road-cassette)

## Best For

- shimano enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from high-quality steel and aluminum for durability on every ride.
- • **Light as a Feather:** Weighing in at just 291g (11-30) or 345g (11-34), this cassette won't weigh you down.
- • **Unleash Your Speed:** Experience the thrill of 12-speed shifting for ultimate performance.
- • **Versatile Gear Ratios:** Choose between 11-30T or 11-34T for tailored gearing to conquer any terrain.
- • **Seamless Compatibility:** Designed for HG freehub types, ensuring a perfect fit for your bike.

## Overview

The SHIMANO Ultegra CS-R8100 12-Speed Road Cassette offers a range of cog sizes (11-30T and 11-34T) crafted from durable steel and aluminum. Weighing only 291g or 345g, it provides lightweight performance without compromising on strength. Ideal for adult cyclists, this cassette is designed for HG freehub types, ensuring compatibility and precision in every ride.

## Description

SHIMANO Ultegra CS-R8100 12-Speed Road Cassette

## Features

- Cog Sizes: [11-30] 11, 12, 13, 14, 15, 16, 17, 19, 21, 24, 27, 30, [11-34] 11, 12, 13, 14, 15, 17, 19, 21, 24, 27, 30, 34
- Cog Material: steel
- Freehub Type: HG
- Carrier Material: aluminum
- Claimed Weight: [11-30] 291g, [11-34] 345g

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mounting type | Braze-On Mount |
| Number of teeth | 30 |
| Manufacturer | Shimano |
| UPC | 192790893761 |
| Age range | Adult |
| Color | Silver, 11-30T |
| Size | 12-Speed |
| Height | 5.87 inches |
| Item display length | 5.63 inches |
| Weight | 499 g |
| Item display width | 2.75 inches |
| Material type | Alloy Steel or Stainless Steel |
| Number of items | 1 |
| Sport | Cycling |
| Batteries included? | No |
| Department | Men's |
| Item model number | ICSR810012130 |
| Product Dimensions | 14.61 x 14.61 x 6.99 cm; 385.55 g |
| ASIN | B09YJYWTBT |

## Product Details

- **Brand:** SHIMANO
- **Colour:** Silver, 11-30T
- **Material:** Alloy Steel or Stainless Steel
- **Item weight:** 0.85 Pounds
- **Case material type:** Aluminium

## Images

![Ultegra CS-R8100 12-Speed Road Cassette - Image 1](https://m.media-amazon.com/images/I/710kga+trYL.jpg)

## Available Options

This product comes in different **Colour, Size** options.

## Frequently Bought Together

- SHIMANO Ultegra CS-R8100 Cassette - 12-Speed, 11-30t, Silver
- SHIMANO Bt-Dn300 Battery Black, One Size
- SHIMANO 2Nd Gen E-Tube Di2 Wire

---

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-15*