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INKESKY Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Hub Bolt Mount (Hanger Mount) for Mountain Bike

4.4 4.4 out of 5 stars 912 ratings
$15.99 with 15 percent savings
Typical price: $18.90

This is determined using the 90-day median price paid by customers for the product on Amazon. We exclude prices paid by customers for the product during a limited time deal.
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Purchase options and add-ons

Brand Inkesky
Material Aluminum
Item Weight 260 Grams
Case Material Aluminum
Mounting Type Braze-On Mount
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Frequently bought together

INKESKY Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Hub Bolt Mount (Hanger Mount) for Mountain Bike
$15.99
Get it as soon as Tuesday, May 21
Only 12 left in stock - order soon.
Sold by PigMarket and ships from Amazon Fulfillment.
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Oumers Universal Bike Chain Tool with Chain Hook, Road and Mountain Bicycle Chain Repair Tool, Bike Chain Splitter Cutter Bre
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ZONKIE 6/7/8 Speed Bike Chain 1/2 x 3/32 Inch 116 Links
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Get it as soon as Saturday, May 18
In Stock
Sold by ZONKIE and ships from Amazon Fulfillment.
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Product Description

Model: RD-TZ31-A rear derailleur compatible with 6/7 speed mountain bikes. Note: The bike rear derailleur is hub bolt mount and not direct mount. Stability: Durable aluminum alloy material and excellent shifting performance ensure safe and stable riding. Application: Suitable for MTB, mountain bikes, road bikes, folding bicycles and so on.

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INKESKY Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Hub Bolt Mount (Hanger Mount) for Mountain Bike

INKESKY Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Hub Bolt Mount (Hanger Mount) for Mountain Bike

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
912 global ratings

Customers say

Customers like the performance, value, and fit of the bicycle derailleur. For example, they mention it works well, fits perfectly and that the quality matches the price. That said, opinions are mixed on the quality and ease of installation.

AI-generated from the text of customer reviews

14 customers mention14 positive0 negative

Customers are satisfied with the performance of the bicycle derailleur. They mention that it works well, has no problems so far, and is the perfect part for the job.

"...I looked for a similar shape. It fit perfectly. Replaced it and it works great!" Read more

"Bought this for my Walmart bike and it works fine but I was really skeptical at first glance...." Read more

"...This was the perfect part for the job. I found an online video to walk me through the process...." Read more

"worked great on my 18+ year old bike .easy swap.no problems" Read more

8 customers mention8 positive0 negative

Customers appreciate the value of the bicycle derailleur. They mention that the quality matches the price.

"...Both are the least expensive type. Not all of my bike repair attempts are successful but this one went well...." Read more

"...With what I know, I'll never buy a new bike when I can get quality parts at bargain prices." Read more

"Great replacement for a broken one. I was surprised how reasonably priced it is. Turned it into a project for the kids to help with." Read more

"Excellent value!" Read more

6 customers mention6 positive0 negative

Customers are satisfied with the fit of the bicycle derailleur. They mention that it fits perfectly.

"...I didn't know which part would fit. I looked for a similar shape. It fit perfectly. Replaced it and it works great!" Read more

"...This new part fits great works well and with a little fine tuning made the shifting good as new...." Read more

"Exactly as described and it fit perfect as a replacement piece. Got me back on my bike." Read more

"Fit perfectly and works perfectly on my cheapo Walmart mountain bike." Read more

28 customers mention15 positive13 negative

Customers are mixed about the quality of the bicycle derailleur. Some mention it's a good replacement for inexpensive department store bikes, while others say it seems flimsy and wobbly out of the box. Some say it only lasts about a month.

"...It seems as sturdy as the original but the original was destroyed when I ran over a stick! It weighs 47 pounds with rear rack and baskets...." Read more

"...It rattled a bit and in general it was kind of wobbly out of the box...." Read more

"This derailleur was a perfect replacement for a broken one off a Walmart bike...." Read more

"The product itself isn’t the greatest but it could be worse...." Read more

12 customers mention8 positive4 negative

Customers are mixed about the ease of installation of the bicycle derailleur. Some mention it's easy to install and adjust, while others say it'll be difficult to install.

"...This went on perfectly and easily." Read more

"...it’s extremely difficult to install because the mount doesn’t get super tight so you have to hold back the derailleur as you..." Read more

"...I found an online video to walk me through the process. It didn't take very long, and he was back up and running." Read more

"...Now I know why the original one broke. Didnt have much trouble installing. Was the exact replacement we needed. Ease in ordering and quick delivery." Read more

Fit for Huffy Hardtail Mountain Bike
5 Stars
Fit for Huffy Hardtail Mountain Bike
My son's bike Huffy Hardtail Mountain Bike, Stone Mountain, 24 inch 21-Speed, Lightweight, Purple (74818) broke this part - Rear Derailleur. It only had the name of the manufacturer Shimano on it. I didn't know which part would fit. I looked for a similar shape. It fit perfectly. Replaced it and it works great!
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Top reviews from the United States

Dimitri
5.0 out of 5 stars Fit for Huffy Hardtail Mountain Bike
Reviewed in the United States on February 20, 2024
Verified Purchase
My son's bike Huffy Hardtail Mountain Bike, Stone Mountain, 24 inch 21-Speed, Lightweight, Purple (74818) broke this part - Rear Derailleur. It only had the name of the manufacturer Shimano on it. I didn't know which part would fit. I looked for a similar shape. It fit perfectly. Replaced it and it works great!
Customer image
Dimitri
5.0 out of 5 stars Fit for Huffy Hardtail Mountain Bike
Reviewed in the United States on February 20, 2024
My son's bike Huffy Hardtail Mountain Bike, Stone Mountain, 24 inch 21-Speed, Lightweight, Purple (74818) broke this part - Rear Derailleur. It only had the name of the manufacturer Shimano on it. I didn't know which part would fit. I looked for a similar shape. It fit perfectly. Replaced it and it works great!
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Will L
5.0 out of 5 stars Use youtube for installation and adjusting help.
Reviewed in the United States on October 28, 2019
Verified Purchase
This replaced the RD-ty18 derailleur originally on my 2001 Walmart Next full suspension 21 speed mtb. Both are the least expensive type. Not all of my bike repair attempts are successful but this one went well. It seems as sturdy as the original but the original was destroyed when I ran over a stick! It weighs 47 pounds with rear rack and baskets. It's a good bike for rough city streets and sidewalks.
Customer image
Will L
5.0 out of 5 stars Use youtube for installation and adjusting help.
Reviewed in the United States on October 28, 2019
This replaced the RD-ty18 derailleur originally on my 2001 Walmart Next full suspension 21 speed mtb. Both are the least expensive type. Not all of my bike repair attempts are successful but this one went well. It seems as sturdy as the original but the original was destroyed when I ran over a stick! It weighs 47 pounds with rear rack and baskets. It's a good bike for rough city streets and sidewalks.
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5 people found this helpful
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Levy
4.0 out of 5 stars Its works good but...
Reviewed in the United States on May 28, 2021
Verified Purchase
Bought this for my Walmart bike and it works fine but I was really skeptical at first glance. It came in the packaged with its paint sorta chipped(if you look in the picture) and the plastic looked like its been sitting outside for a while. I mean its not terrible but when you buy something new, you'd expect it to be in great condition but it sure didn't look like it. It rattled a bit and in general it was kind of wobbly out of the box. I thought it was going to break but rode it for an hour minutes and it shifts smoothly. no problems so far.
Customer image
Levy
4.0 out of 5 stars Its works good but...
Reviewed in the United States on May 28, 2021
Bought this for my Walmart bike and it works fine but I was really skeptical at first glance. It came in the packaged with its paint sorta chipped(if you look in the picture) and the plastic looked like its been sitting outside for a while. I mean its not terrible but when you buy something new, you'd expect it to be in great condition but it sure didn't look like it. It rattled a bit and in general it was kind of wobbly out of the box. I thought it was going to break but rode it for an hour minutes and it shifts smoothly. no problems so far.
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Wesley Graves
5.0 out of 5 stars Working well on old Huffy MTB frame
Reviewed in the United States on July 17, 2020
Verified Purchase
So far so good. I installed this on an old Huffy mountain bike frame that I completely rebuilt to make it more reliable. This went on perfectly and easily.
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Sheldon C.
5.0 out of 5 stars Cash was tight so, I built my own bike.
Reviewed in the United States on March 28, 2020
Verified Purchase
I have an old Schwin sidewinder I just rebuilt. It needed new derailleurs and cables. I took derailleurs off of another schwin bike I wasn't using but they didn't fit well. I purchased this derailleur which was shockingly identical to the original. Coupled with a new Shimano gear cassette, I find the bike rides like new. With what I know, I'll never buy a new bike when I can get quality parts at bargain prices.
4 people found this helpful
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Charles Johnson
3.0 out of 5 stars You pay for what you get
Reviewed in the United States on December 1, 2018
Verified Purchase
The product itself isn’t the greatest but it could be worse.

(Hanger mount) it’s extremely difficult to install because the mount doesn’t get super tight so you have to hold back the derailleur as you reininstall your back tire and the pulley screws are either too tight or too loose and you’re stuck between difficult petaling or possibly losing it during a ride.
My suggestion is to salvage any parts for the old derailleur, such as the screws, and use them on the new one. Also KEEP EVERYTHING LUBRICATED or you’re significantly reducing the life of your new derailleur

Once it’s set, it works fine though. Im on my 3rd week with 40 miles and its all good
2 people found this helpful
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The Amazing Caffeiney!
5.0 out of 5 stars Perfect for the bike that’s off the rails!
Reviewed in the United States on August 6, 2020
Verified Purchase
My wife’s bike apparently had enough of this shifting while going uphill business and promptly snapped the derailleur in half. This new part fits great works well and with a little fine tuning made the shifting good as new. Only problem is the pronunciation... I have to get you a new derailier...derailillillerer...deraililleuerrred...shifter thingy!
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TWCrew
5.0 out of 5 stars Perfect replacement
Reviewed in the United States on July 31, 2019
Verified Purchase
My son's dearileur broke, so we needed a replacement. This was the perfect part for the job. I found an online video to walk me through the process. It didn't take very long, and he was back up and running.
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Top reviews from other countries

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Christopher Ayala
5.0 out of 5 stars Todo bien
Reviewed in Mexico on July 6, 2023
Verified Purchase
Practico y original
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Randy
5.0 out of 5 stars Shimano Replacement
Reviewed in Canada on April 10, 2024
Verified Purchase
Original Derailleur damaged beyond repair. Purchased this one and works fine.
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Amazon Customer
4.0 out of 5 stars Works
Reviewed in Canada on September 18, 2022
Verified Purchase
Worked great hard to adjust but that is because I dont know what im doing lol
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Guy
5.0 out of 5 stars Derailleur
Reviewed in Canada on October 28, 2023
Verified Purchase
Easy to install, same price as my bike shop
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Amazon Customer
1.0 out of 5 stars broken after only 2 months of use. biking in the city
Reviewed in Canada on July 18, 2022
Verified Purchase
this product was used for 2 months. City usage, not mountain biking or downhill. the second gear just fell off. useless now
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Amazon Customer
1.0 out of 5 stars broken after only 2 months of use. biking in the city
Reviewed in Canada on July 18, 2022
this product was used for 2 months. City usage, not mountain biking or downhill. the second gear just fell off. useless now
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One person found this helpful
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