---
product_id: 76197501
title: "KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use"
brand: "kcnc"
price: "€ 0.86"
currency: EUR
in_stock: false
category: "Outdoors"
url: https://www.desertcart.gr/products/76197501-kcnc-road-cyclocross-gravel-e-bike-bicycle-bike-cycling-rear
store_origin: GR
region: Greece
---

# KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use

**Brand:** kcnc
**Price:** € 0.86
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use by kcnc
- **How much does it cost?** € 0.86 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/76197501-kcnc-road-cyclocross-gravel-e-bike-bicycle-bike-cycling-rear)

## Best For

- kcnc enthusiasts

## Why This Product

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

## Description

Full description not available

## Features

- P.when("ReplacementPartsBulletLoader").execute(function(module){ module.initializeDPX(); })
- WHY USING OVERSIZED PULLEY WHEEL CAGE-Upgrade your drivetrain for ultimate efficiency and superior performance.KCNC Wheel Bearings reduce friction, which gives you a lower rolling resistance.Upgrading your wheel bearings to oversized pulley will maximize the return you get from your energy.KCNC oversized pulley cage reduce friction and increases resistance to contamination and corrosion.
- THE EFFICIENCY OF OSPW-The Oversized Pully Wheel(OSPW) system reduces friction in the pulleys by 45 % and for your optimised performance.The overall power savings of the OSPW System for Sram red/force reach 30%-60%, or more in some cases, over a stock setup.
- UPGRADE YOUR CASSETTE-The system is compatible up to a 32T cassettes on most bikes depending on derailluer hanger.The system consists of Top 12t & Bottom 16t alloy pulley wheels fitted with low friction bearings and a lightweight cage made from 7075 Alloy.Coated bearings prolong the lifetime even further.The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market.
- COMPATIBILITY-The OSPW system is compatible with Shimano Ultegra R8000/8050 and Dura Ace R9100/9150 11 speed rear derailleur.The Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems.Almost have the same efficiency ratio with Ceramicspeed.
- SPECIFICATION-Top Pully :12T with sealed bearing / Bottom Pully :16T with sealed bearing / Matiral : AL7075 Fully CNC/ Color:Black,Red,Gold available / Weight : approx.60grams / For Shimano Ultegra R8000/8050 and Dura Ace R9100/9150 11 speed rear derailleur use.

## Images

![KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use - Image 1](https://m.media-amazon.com/images/I/41oinPYlFPL.jpg)
![KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use - Image 2](https://m.media-amazon.com/images/I/4158uHim9GL.jpg)
![KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use - Image 3](https://m.media-amazon.com/images/I/31SeJspHNtL.jpg)
![KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use - Image 4](https://m.media-amazon.com/images/I/416I76GD97L.jpg)
![KCNC Road Cyclocross Gravel E-Bike Bicycle Bike Cycling Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 use - Image 5](https://m.media-amazon.com/images/I/41bKkXhkCwL.jpg)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-25*