---
product_id: 1548410
title: "N-Gear Jump Stop Chain Guide/Watcher"
brand: "n-gear"
price: "¥3694"
currency: JPY
in_stock: false
reviews_count: 18
category: "Sporting Goods"
url: https://www.desertcart.jp/products/1548410-n-gear-jump-stop-chain-guide-watcher
store_origin: JP
region: Japan
---

# N-Gear Jump Stop Chain Guide/Watcher

**Brand:** n-gear
**Price:** ¥3694
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** N-Gear Jump Stop Chain Guide/Watcher by n-gear
- **How much does it cost?** ¥3694 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1548410-n-gear-jump-stop-chain-guide-watcher)

## Best For

- n-gear enthusiasts

## Why This Product

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

## Description

Adjustable stainless steel guide prevents inner ring overshifting.

## Features

- 29 clamp
- Will not work on ovalized seat tubes

## Images

![N-Gear Jump Stop Chain Guide/Watcher - Image 1](https://images-na.ssl-images-amazon.com/images/I/51z2yAX2-9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality, Cheap, effective solution!
*by J***T on October 7, 2014*

Unless you need the prettiest chain catcher solution.. this will more than do.Fitment is great.Build quality (considering it's cheap) is quite good.Mounts up extremely easily and is adjustment is pretty straight forward.Comes with four pieces: nut, bolt, strap, and metal guide.It's by no means heavy duty, if your chain comes off all the time you have a bigger problem that needs a better solution.I'm considering bending tip to follow the shape of the chain line by the rings a bit more ergo.Make sure you find out the diameter of your seat tube before ordering or else you will be setting yourself up for disappointment.

### ⭐⭐⭐⭐⭐ Simple and perfect solution to chain jumping.
*by J***H on July 25, 2016*

My son's front derailleur stopped functioning on his mountain bike. I removed it, thinking that I could just leave the chain on the 2nd ring up front. Everytime he would jump off a curb, the chain would jump to the smallest ring- then it would jump off the rings completely with another jump off a curb. So annoying! This jump chain stop fixed the problem perfectly, AND it has enough adjustment to keep the chain on the 2nd and even the 3rd ring. I thought I would be stuck on the smallest ring, so the range of adjustment was a very nice surprise. No matter how hard you bash on the bike or whatever gear you choose for the rear, the chain stays put. I give this device 5 stars for being simple and perfectly effective. Check out the pics.....

### ⭐⭐⭐⭐⭐ Seems effective... so far
*by D***D on July 27, 2016*

I've only had this for a day but so far it seems to work. I got this for a 1x even though that's not the intended purpose.I recently converted my older hardtail mountain bike to 1x8 for the same of simplicity, and because I used the middle chain ring about 98% of the time anyway. However after switching the chain kept falling off on moderately bumpy downhill sections every time I rode the bike, which was especially annoying because the way the chain ring I have is designed made it difficult to pull the chain out too. I should probably get a new chainring designed for 1x, but for now I didn't feel like dropping the $$$.Anyway, I looked at some other chain guides like the ones from MRP and I couldn't understand why a simple plastic/metal part should cost over $50, so I went with this one instead. I've only used it once so far but it was very easy to install and it seems to work. It feels durable despite only being $10. I went on a short 3 mile ride today on a trail that's pretty bumpy and the chain did not fall off this time, even when I hit the downhill sections with some speed! So I think it's a success. If it happens to break or stops working for whatever reason I'll update the review.

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**Shop now:** [https://www.desertcart.jp/products/1548410-n-gear-jump-stop-chain-guide-watcher](https://www.desertcart.jp/products/1548410-n-gear-jump-stop-chain-guide-watcher)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-19*