---
product_id: 655950379
title: "R8101 Ultegra Cassette 12-Speed 11-30T"
brand: "shimano"
price: "¥40842"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/655950379-r8101-ultegra-cassette-12-speed-11-30t
store_origin: JP
region: Japan
---

# Compatible with 11/12-speed freehub 12-speed precision gearing Smooth shifts under max force R8101 Ultegra Cassette 12-Speed 11-30T

**Brand:** shimano
**Price:** ¥40842
**Availability:** ✅ In Stock

## Summary

> ⚡ Shift into the fast lane with Shimano Ultegra precision!

## Quick Answers

- **What is this?** R8101 Ultegra Cassette 12-Speed 11-30T by shimano
- **How much does it cost?** ¥40842 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/655950379-r8101-ultegra-cassette-12-speed-11-30t)

## 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

- • **Sleek Silver Finish:** Elevate your bike’s aesthetic with a polished silver cassette that signals performance and style on every ride.
- • **Versatile Compatibility:** Designed to work flawlessly with both 12-speed and 11-speed road freehub bodies, giving you flexible upgrade options.
- • **Lightweight & Durable Design:** Crafted with premium materials weighing just 13.6 ounces, balancing strength and agility for serious riders.
- • **Race-Ready 12-Speed Precision:** Experience seamless gear transitions with a refined 12-step combination engineered for peak efficiency in every sprint and climb.
- • **Unmatched Shifting Performance:** Shift faster and smoother even under maximum pedaling force, ensuring you never lose momentum when it counts.

## Overview

The SHIMANO Ultegra CS-R8101 is a high-performance 12-speed cassette featuring an 11-30t gear range, engineered for smooth, fast shifting under heavy pedaling loads. Compatible with both 12-speed and 11-speed road freehub bodies, it offers lightweight durability and a sleek silver finish, making it the go-to choice for competitive cyclists seeking reliable drivetrain efficiency.

## Description

Shimano R8101 Ultegra Cassette 12-Speed 11-30T

## Features

- Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation
- Faster, smoother shifts under maximum pedaling force
- Compatible with 12-speed and road 11-speed freehub body
- Drivetrain Speeds: 12
- Color: Silver

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 6.06 x 5.67 x 2.64 inches |
| Package Weight | 0.39 Kilograms |
| Item Dimensions  LxWxH | 3 x 6 x 6 inches |
| Item Weight | 13.6 ounces |
| Brand Name | SHIMANO |
| Model Name | Ultegra CS-R8101 |
| Color | Silver |
| Suggested Users | unisex-adult |
| Number of Items | 11 |
| Manufacturer | Shimano |
| Part Number | ICSR810112130 |
| Size | 11-30t |

## Images

![R8101 Ultegra Cassette 12-Speed 11-30T - Image 1](https://m.media-amazon.com/images/I/61yuTvIa8VL.jpg)

## Frequently Bought Together

- SHIMANO Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver
- Shimano Xt/Ultegra 12-Speed Chain Silver, 138 Links

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**Shop now:** [https://www.desertcart.jp/products/655950379-r8101-ultegra-cassette-12-speed-11-30t](https://www.desertcart.jp/products/655950379-r8101-ultegra-cassette-12-speed-11-30t)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-15*