--- product_id: 7115190 title: "ethirteen Extended Range Cog 40t Shimano" brand: "e*thirteen" price: "€ 1.42" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.be/products/7115190-ethirteen-extended-range-cog-40t-shimano store_origin: BE region: Belgium --- # 8x8x1 in Dimensions 0.08 kg Lightweight 40t Gear Ratio ethirteen Extended Range Cog 40t Shimano **Brand:** e*thirteen **Price:** € 1.42 **Availability:** ❌ Out of Stock ## Summary > 🚴‍♂️ Elevate Your Ride – Conquer Every Hill! ## Quick Answers - **What is this?** ethirteen Extended Range Cog 40t Shimano by e*thirteen - **How much does it cost?** € 1.42 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/7115190-ethirteen-extended-range-cog-40t-shimano) ## Best For - e*thirteen enthusiasts ## Why This Product - Trusted e*thirteen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek & Stylish:** Available in a sleek black finish, perfect for the modern trail bike. - • **Durable & Resilient:** Crafted from Exa+ anodized aluminum, built to withstand heavy power without flex. - • **Cost-Effective Upgrade:** Enhance your existing 1X 10-speed drivetrain without breaking the bank. - • **Seamless Shifting Experience:** Experience crisp shifts with e*thirteen's advanced Speed Shift Technology. - • **Unleash Your Climbing Potential:** Transform your ride with the 40t cog, designed for steep climbs. ## Overview The e*thirteen Extended Range Cog 40t for Shimano is a high-performance upgrade designed to enhance your 1X 10-speed drivetrain. With its lightweight construction and advanced shifting technology, this cog allows for seamless transitions and improved climbing capabilities, all while maintaining a stylish black aesthetic. ## Description Back before the age of derailleurs, dudes had to climb alpine passes on singlespeeds with a flippable rear wheel that had two cogs: big and bigger. Fast forward nearly a century, and e*thirteen components' Extended Range Cog bumps your one-by drivetrain's cassette range up to the granniest of granny gearings, effectively adding a chainring to the bottom end of your cogs. With a capacity of 40 or 42 teeth, the Extended Range Cog levels the grade to make sure you get to the top without crunching all the cartilage out of your knees. ## Features - Make Your Move To 1X And Crush The Steepest Climbs On Your Trail Bike With The Ex Cog - Add Much Needed Range To Your Existing 1X 10 Speed Drivetrain Without Breaking The Bank - Shifts Stay Crisp Thanks To E - Thirteen Speed Shift Technology And The Exa+ Anodized Aluminum Resists Flex Under Heavy Power ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 7.48 x 7.48 x 0.39 inches | | Package Weight | 0.08 Kilograms | | Item Dimensions LxWxH | 8 x 8 x 1 inches | | Item Weight | 0.08 Kilograms | | Brand Name | e*thirteen | | Color | Black | | Manufacturer | e*thirteen | | Part Number | FW10.ER-10SHIM.42.K_Noir_5 mm | | Model Year | 2014 | | Size | 42t for Shimano | ## Images ![ethirteen Extended Range Cog 40t Shimano - Image 1](https://m.media-amazon.com/images/I/81sT2MLzaBL.jpg) ![ethirteen Extended Range Cog 40t Shimano - Image 2](https://m.media-amazon.com/images/I/81pmYJN7yML.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐ 1.0 out of 5 stars Weak aluminium will snap, make you crash, and hurt you while riding. *by M***J on Reviewed in the United States on June 10, 2019* Weak. Broke second ride ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Good product that is SRAM conpatible *by S***H on Reviewed in the United States on December 17, 2016* No complaints about this product. With a SRAM Gx 10 sp derailer and SRAM 10 speed cassette, it shifts perfectly. It's strong and has held up to a lot of tough climbs and other agressive mtn bike abuse. and I love the color. I think I should've gotten a 40t for my riding style. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars What can I say... This thing is ... *by I***D on Reviewed in the United States on October 6, 2014* What can I say... This thing is bitchin!! At a fraction of the price of other similar products and also lighter than two other top brands I was considering. It takes a beating and has helped me out big time on the climbs! --- ## 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.be/products/7115190-ethirteen-extended-range-cog-40t-shimano](https://www.desertcart.be/products/7115190-ethirteen-extended-range-cog-40t-shimano) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-22*