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Shimano Rear Derailleur RD-TX800

4.5 4.5 out of 5 stars 1,256 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Front Bike Derailleurs by SHIMANO

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Black

Purchase options and add-ons

Brand SHIMANO
Color Black
Item Weight 0.01 Ounces
Mounting Type Braze-On Mount
Product Dimensions 5.5"L x 5.25"W x 3.25"H

About this item

  • Rear Derailleur (3x8-speed)
  • 8-speed drive train
  • Durable light action shifting peformance for stress free riding. Double Servo-panta Mechanism
  • Quick assembly. Allen key type inner cable fixing bolt
  • Total capacity 43T

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Product Description

SHIMANO's Double Servo-Panta Mechanism enables the rear derailleur to move in an optimum path. The guide pulley tracks the cogs closely while moving front to back, optimizing each shift. Perfect tracking contributes to the most accurate SIS shift ing.

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Technical Details

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Tourney

Tourney Shimano Rear Derailleur RD-TX800


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4-F *2009970*(350-351)1/31 m------>3 P sp(25:2/26 3/18(10e &3/19(5 3/24(10 3/25s(100 3/31(20 45sp(160::eta 4/15 42721(100:9/29ar

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
1,256 global ratings

Customers say

Customers like the quality, shifting, value, fit and ease of installation of the bicycle derailleur. For example, they mention it works well, is easy to install and adjust, and is decent quality for the price. Some appreciate the fit and say it's a great budget derailleure.

AI-generated from the text of customer reviews

61 customers mention52 positive9 negative

Customers like the quality of the bicycle derailleur. They say it works well, has no issues, and is easy to install. Customers also say it's strong and not easy to bend.

"basically 'plug & play'. works great" Read more

"Replaced derailer on an older Marin. Works great." Read more

"...It arrived well packaged and works exactly as it should. It is by no means a light or quiet product, but it will serve its purpose...." Read more

"...He has been using it for three months and it has worked perfectly and precisely so far. Five stars." Read more

28 customers mention23 positive5 negative

Customers find the installation of the bicycle derailleur fairly easy. They mention that the set-up was straight forward, and the derailleure installed with no issues. Some say that the derailleurs are easy to work with and adjust. That said, some complain that the installation is tough to tweak.

"...It is a standard set-up rear derailleur. Set-up was straight forward, so I have no complaints there, just follow the directions...." Read more

"Easy install. Tough to tweak. I have items on a Schwinn MtbAxum 8 speed. A few months in and medium riding, still cranking!" Read more

"...It's a direct replacement for the old one. It installed easily, was fairly simple to set up and adjust, and got me up and running for my commute to..." Read more

"...out splendidly, the bike shifts perfect and the derailleur installed perfectly on the frame." Read more

25 customers mention25 positive0 negative

Customers are satisfied with the value of the bicycle derailleur. They mention that it is a good investment, works great for the money, and is surprisingly high end. Some say that the derailleurs look inexpensive but are pretty bulletproof for the cost.

"...Took little to no adjustment. Great budget derailleur for my son's mountain bike." Read more

"...Honestly, I cannot find a problem with these other than they look inexpensive...." Read more

"Decent quality for the price" Read more

"...But it is Worth Every Penny and will Buy it again When I Smash my Current one on another Rock. (Last Photo is the Original that Broke)" Read more

14 customers mention11 positive3 negative

Customers like the shifting of the bicycle derailleur. They mention that it's smooth, silent when pedaling, and that the cogs are really smooth.

"...The cogs were really smooth, and have sealed bearings. Overall, for what I paid for this rear derailleur and what came in the mail is incredible...." Read more

"...what you pay for, I needed a replacement for my Fat Tire bike and it shifts great, I also paired it with a Shimano Finger Shifter." Read more

"...Everything worked out splendidly, the bike shifts perfect and the derailleur installed perfectly on the frame." Read more

"...It does not shift quickly between gears like the previous one did and adjustments don't seem to make much difference...." Read more

11 customers mention11 positive0 negative

Customers are satisfied with the fit of the bicycle derailleur. They mention that it fits perfectly, is easy to work with, and has great value. Some say that the product arrived on time and works perfectly with no issues.

"It fits pretty well" Read more

"worked perfect with no issues easy to adjust" Read more

"Though not exact replacement part for my son’s bike, it fit like new...." Read more

"No issues or set backs, it was an exact fit and work with my 7 spd ahimano set up with out any adjustments. Perfect., Thank you." Read more

TourneyTX Shimano Rear Derailleur RD-TX800 2015 Jamis Durango Sport
4 Stars
TourneyTX Shimano Rear Derailleur RD-TX800 2015 Jamis Durango Sport
I purchased this Tourney Shimano Rear Derailleur RD-TX800 for a used 2015 Durango sport. I purchased the bike used and the derailleur and hanger were both severely damaged by a fall the previous owner had taken. I didn’t want to mess around with figuring out a higher-end performance part, so just went with the exact same model derailleur. It arrived well packaged and works exactly as it should. It is by no means a light or quiet product, but it will serve its purpose. I have only had it on the bike for three months and maybe 100 miles of paved trail riding. No issues at all.
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4.0 out of 5 stars TourneyTX Shimano Rear Derailleur RD-TX800 2015 Jamis Durango Sport
Reviewed in the United States on February 10, 2024
I purchased this Tourney Shimano Rear Derailleur RD-TX800 for a used 2015 Durango sport. I purchased the bike used and the derailleur and hanger were both severely damaged by a fall the previous owner had taken. I didn’t want to mess around with figuring out a higher-end performance part, so just went with the exact same model derailleur. It arrived well packaged and works exactly as it should. It is by no means a light or quiet product, but it will serve its purpose. I have only had it on the bike for three months and maybe 100 miles of paved trail riding. No issues at all.
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Reviewed in the United States on May 26, 2019
Color: BlackVerified Purchase
10 people found this helpful
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Reviewed in the United States on December 10, 2023
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Reviewed in the United States on July 14, 2015
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5.0 out of 5 stars I’m impressed and would buy again.
Reviewed in the United States on July 14, 2015
I used this on my "lipstick on a pig" build. I built up an older late 90's sears mountain bike (Free Spirit Octane).

From what I’ve been reading this is Shimano's new budget lineup for July 2015 (tx800 series). As with all Shimano gear it came well packaged. I used this to go from 6 speeds in the rear to 8 speeds. I ended up using a derailleur adapter for this because my bike frame didn’t have a newer removable rear derailleur mount. It is a standard set-up rear derailleur. Set-up was straight forward, so I have no complaints there, just follow the directions.

The action and accuracy of this derailleur was awesome. After I got it set up, It was really easy to dial in just right. The adjuster on this derailleur has a detent on it so you can do one or two clicks at a time to get it just right. The cogs were really smooth, and have sealed bearings. Overall, for what I paid for this rear derailleur and what came in the mail is incredible. You get a lot of accuracy and value out of Shimano’s new Tourney TX800 lineup. I’m impressed and would buy again.
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15 people found this helpful
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Reviewed in the United States on January 17, 2024
Color: BlackVerified Purchase

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Manuel
5.0 out of 5 stars excelente
Reviewed in Germany on October 9, 2023
Color: SilverVerified Purchase
Mario Ekards
5.0 out of 5 stars liohliuug
Reviewed in the United Kingdom on May 11, 2021
Color: SilverVerified Purchase
Diego De Conca
4.0 out of 5 stars Robusto e preciso
Reviewed in Italy on March 22, 2021
Color: SilverVerified Purchase
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Diego De Conca
4.0 out of 5 stars Robusto e preciso
Reviewed in Italy on March 22, 2021
Ottimo rapporto qualità/prezzo, deragliatore robusto e preciso. Molto apprezzata la presenza della regolazione di tensione della molla, che permette di regolare la distanza tra pulegge e pignoni, in maniera da avere una cambiata fluida anche sui pignoni più grandi. Di contro è un po' ingombrante, soprattutto se si utilizza una gabbia di protezione del cambio.
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銀鷲
5.0 out of 5 stars 安い!
Reviewed in Japan on November 19, 2022
Color: SilverVerified Purchase
One person found this helpful
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Samuel
4.0 out of 5 stars Gutes Schaltwerk
Reviewed in Germany on May 12, 2021
Color: SilverVerified Purchase