---
product_id: 124439917
title: "Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use"
brand: "kcnc"
price: "A$199"
currency: AUD
in_stock: true
reviews_count: 9
url: https://www.desertcart.com.au/products/124439917-road-cyclocross-gravel-e-bike-bicycle-bike-rear-derailleur-oversized
store_origin: AU
region: Australia
---

# Ultimate Compatibility Efficiency Boost Lightweight Design Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use

**Brand:** kcnc
**Price:** A$199
**Availability:** ✅ In Stock

## Summary

> 🚴‍♀️ Elevate Your Cycling Game with Precision Engineering!

## Quick Answers

- **What is this?** Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use by kcnc
- **How much does it cost?** A$199 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/124439917-road-cyclocross-gravel-e-bike-bicycle-bike-rear-derailleur-oversized)

## Best For

- kcnc enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Enjoy 3-5 times longer lifespan than standard pulleys.
- • **Smooth Sailing:** Reduce friction by 45% for an ultra-smooth ride.
- • **Light as a Feather:** Weighing in at just 60 grams, it’s the perfect upgrade.
- • **Maximize Your Ride:** Experience a 30%-60% power savings with the OSPW system!
- • **Versatile Compatibility:** Fits SRAM Red/Force/Rival 10/11 speed mechanical derailleurs.

## Overview

The KCNC Oversized Pulley Wheel System is designed for SRAM Red/Force/Rival mechanical 10/11 speed derailleurs, offering a significant reduction in friction and enhanced efficiency. With a lightweight design and durable materials, this system promises a longer lifespan and improved performance, making it an essential upgrade for serious cyclists.

## Description

Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use

## Features

- 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.
- 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.Almost have the same efficiency ratio with Ceramicspeed.
- UPGRADE YOUR CASSETTE-The system is compatible up to a 32T cassettes on most bikes depending on derailluer hanger.The system consists of Top 14t & 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 for SRAM mechanical derailluers is compatible with both short cage & WiFli derailleur bodies.The system is for Sram Red/Force 10/11 speed mechanical rear derailleur use.
- SPECIFICATION-Top Pully :14T with sealed bearing / Bottom Pully :16T with sealed bearing / Matiral : AL7075 Fully CNC/ Color:Black,Red,Gold available / Weight : approx.60grams / For Road Sram Red/Force 10/11 speed mechanical rear derailleur.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 6.93 x 4.41 x 2.09 inches |
| Package Weight | 0.19 Kilograms |
| Item Weight | 60 Grams |
| Brand Name | KCNC |
| Color | Gold |
| Material | Metal |
| Manufacturer | KCNC |
| Part Number | For Sram Red/Force/Rival |

## Images

![Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use - Image 1](https://m.media-amazon.com/images/I/61X3rsL4fDL.jpg)
![Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use - Image 2](https://m.media-amazon.com/images/I/61SumVpAsFL.jpg)
![Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use - Image 3](https://m.media-amazon.com/images/I/61A0Bpva3lL.jpg)
![Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use - Image 4](https://m.media-amazon.com/images/I/61Wj2+SFVkL.jpg)
![Road Cyclocross Gravel E-Bike Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW Cycling for Sram Red/Force/Rival Mechanical 10/11 Speed use - Image 5](https://m.media-amazon.com/images/I/61JQH7Nm+YL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    LOVE the OS jockey wheels, but Sram has issues!!
  

*by R***S on Reviewed in the United States on July 3, 2021*

Nice pulley system. I can’t hear my chain anymore. The only issue was the install. Said it wouldn’t work on the Sram Apex system… but actually, it does work. Sram made the receiving housing about .0001” longer than Rival or Reds housing making it so you can’t install the locking pin. To remedy this, I took an orbital sander and sanded the housing about the thickness of a human hair (yeah, leave it to Sram to change the dimensions a thousands of an inch to prevent people from attaching add on’s like this… seriously Sram??). Needless to say, the install was quite the chore. But had nothing to do with this product. After I modified the Sram Apex housing it fit great. No issues. Runs extremely smooth and quite.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Looks trick and gets the job done
  

*by J***C on Reviewed in the United States on April 25, 2020*

Used this to replace a busted cage on an old 1st gen Red 10 speed rear derailleur. Easy enough to swap and I appreciated all the positions available for the tensioner spring so I could really dial in the chain tensioning. Plus it's a nice piece of CNC blingPro tip if you're having trouble installing this: find an old shift or brake cable and use it to hold the derailleur open, or leave your derailleur connected to your shifter and shift to the largest cog with the chain and wheel off your bike. It'll free up a hand to drop the screw back into the derailleur

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Solid construction, but troublesome chain lineup because narrow wide
  

*by K***A on Reviewed in the United States on August 31, 2020*

Why would you need narrow-wide jockey wheels? Just regular jockey wheels, the thing's not going to skip off of them. Several times I've had to stop and adjust the chain because it was riding on the wrong teeth. So annoying.

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**Shop now:** [https://www.desertcart.com.au/products/124439917-road-cyclocross-gravel-e-bike-bicycle-bike-rear-derailleur-oversized](https://www.desertcart.com.au/products/124439917-road-cyclocross-gravel-e-bike-bicycle-bike-rear-derailleur-oversized)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-23*