Reviews over the

SRAM GX Eagle

The derailleur shifts gears perfectly, whether climbing or in the final sprint. The GX Eagle derailleur delivers on all these promises with a redesigned clevis architecture that improves chain management. Redesigned to work with the new 10-52-tooth cassettes, it's also backwards compatible with the 10-50-tooth versions. A product that perfectly meets my expectations, and at a price that can't be beaten at Mantel.

Easy to use

Very good derailleur, as described. Serious site

I changed the transmission on my mountain bike from Shimano to Sram. The difference is obvious. With sram, the gears change more quickly and more precisely. Installation and adjustment are quick and easy. With the SRAM XG-1275 GX Eagle cassette, the combination is remarkable.

Quite simply the best.

Good product to replace the rear derailleur on my vttae

Nice upgrade from an NX

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I use this GX on a Scott Spark Rc. It's a good product in terms of value for money.

My eagle SX derailleur had become sluggish and unadjustable. I switched to the gx range with a big gain in quality.

Very good value for money I recommend this site very very fast delivery ordered on Monday lunchtime delivery on Wednesday morning

Runs flawlessly and shifts perfectly.

As a replacement for an nx .super content nothing to complain about

The improvement is noticeable, especially in the pulley cage, because with a small advance in the lower part of the pulley block, it protects better against chain slippage.

Very good value for money and very fast delivery. Very pleased with my purchase. Thank you

Product conforms and meets my expectations perfectly, easy to fit and adjust using the adjustment tool supplied with the part.

It's the third gx eagle I've used and I'm happy with its robustness in every mtb context. You have to mistreat it a lot to break it

Lighter and more robust than the sram sx. My son is very happy with it. With the gx shifter, it's a great package.

Fully meets my expectations, the old one was the same.

After a defect of the predecessor, I renewed the gearstick with the original spare part. Shifts again like on the first day

cheap gearbox for its accuracy and easy to adjust

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28-10-2022

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Nothing to say, works much better than my SX.

Derailleur eagle Gx 12v super product for MTB haibike

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Everything perfect, recommended seller!

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GX,ba very very well .a little more weight ,but much cheaper..... In my opinion the best option .... For mud riding

Great option to transform my cannondale FSI to single chainring. My first purchase in mantel and the experience has been excellent, good price, fast shipping, I will repeat!

the product meets my needs perfectly

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El desviador es perfecto, vienen engrasados los tornillos. Envio muy rápido y emabalaje estupendo.

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A whole other world compared to the NX: much more precise mechanism and pulleys. More solid material. Coming from the use of its younger brother, one notices the elimination of pulley bearing play.

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Very good quality Sram derailleur, super smooth and precise shifting, fitted to my Trek Fuel without any problems. fast delivery and careful packaging by Mantel.

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I bought it to change it for an NX that I had on my bike, the difference is noticeable, it is more robust and changes with more precision.

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The SRAM GX Eagle derailleur is lightweight, well made and easy to fit, my experience purchasing from Mantel was a very positive one, and my order was dispatched the same day and arrived in less than 48 hours, highly impressed with my purchase.

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top and fast

At first I was skeptical because of this internet site but ok , I ordered (Saturday) delivery was there on Monday !!!! Ultra fast and very well packed! I ordered again and exactly the same thing happened! I will always order here !!!

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Ordered from Mantel as they were so much cheaper than any in the UK even after tax and postage. Delivery was super quick. Couldn’t be happier.

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Used on vttae coupled with a new gx chain and gx shifter. To replace the unworthy and unregulated original sx on a mondraker chazer .....

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I replaced my broken original Sram SX 12-speed derailleur with a GX. The gears shift more smoothly and easily. I wish it was stronger than the old SX.

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replaced nx perfect

Rode twice now-just great!

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Best value for money in my opinion. Fitted myself after my existing NX derailleur broke and was not available. Integrates seamlessly with the rest of the NX group and shifts better than NX.

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Excellent product, for the same cost better than the competition

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I looked for this item for some time, so great it was in stock and ready for delivery.

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Arrived fast, perfect communication and always attentive to any incident. Highly recommended.

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With the current shortage, it was a pleasant surprise to be able to count on Mantel. I'm very pleased with the performance.

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I ordered a Sram GX 12v rear derailleur and no store had the lowest offer but at the same time purchasable with PayPal. After processing the purchase I was contacted by Mantel for all invoice, shipping and customer service details.

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Fine derailleur. Does what it is supposed to do. In terms of maintenance and service life more durable than e.g. NX. Good value for money.

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Very good rear derailleur

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Following the breakage of my previous GX (a nice stone had the brilliant idea of getting stuck in it, shearing it off at the fixing screw), I needed a new one for a planned outing. MANTEL was the only one to have it in stock, and at a fairly reasonable price. Delivered in 3 days to the relay point (order placed on a Sunday evening).

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All good

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Circuit can be adjusted well. Shifts solidly. Good price / performance ratio

It works flawlessly, shifts like an automatic

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I upgraded from the nx. I am very impressed with the Gx in comparison. It is much smoother changing gears and alot quieter. Very pleased with it. The delivery was really quick and I didn't have to wait around for the shop to order it in which is a massive bonus at the moment.

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I was looking for a derailleur that was available quickly...I searched several other sites and the only place I could find the derailleur at a reasonable price was Mantel.

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Unbeatable value for money

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Having put up with poor indexing and constant mech adjustments for a year, I decided to upgrade to the GX derailleur. This product far outweighs my expectations and cured the issues instantly. I complimented the new mech with a new GX chain as well and and delighted with the result. Mantel were outstanding in price and delivery.

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super derailleur

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Fast service

Well-packaged and easy to install, this derailleur's only drawback is its price. Note that there are no paper instructions and that you have to get them from the SRAM website. My old derailleur (same model) had taken a shock which made it impossible to adjust the gears. On the new one, this adjustment was very easy and all the gears shift perfectly.

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Very satisfied, part available and very fast delivery. Would recommend.

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Fast delivery great price and service

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With complete confidence...

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I was finding it almost impossible to find a GX Eagle derailleur in stock anywhere, until I looked at Mantel! Not only in stock, but at a good price & dispatched the same day! A great product from a superb supplier! Mantel will definitely be the top of my list when looking for a great components deal next time!

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Perfect, as expected

Used on 5 outings, fully complies with my expectations

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Ordered on Wednesday and delivered on Friday. Very hard to find in stock and one of the cheapest prices I've found. I can't recommend it enough.

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Great product discount from sram and lo and behold it delivers what it promises. Fast, precise and quiet shifting. More I do not expect from a schaltwerk. In addition, it fits together with other cassettes from the eagle series, so can be combined

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I didn't know about this brand, so I looked at the reviews before ordering. I can only recommend it. Order placed on Monday and delivery on Wednesday.... the article corresponds to my expectations. Thank you

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Super product

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Everything was perfect, in time delivery, very fast from the netherlands, mantis did a great Job. The product, just awesome, it's the gx derailleur. I guess it's the model from 2020, model-id RD-GX-1-B2 with a bandwith of 520% and it works properly with the 52t cassette.

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Just what you expect from SRAM's products, good stuff! Delivery was very fast too!

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Who 28g extra weight compared to the XX1 rear derailleur does not bother, which makes no mistake in buying the GX rear derailleur. It is identical in construction with the XX1 component, it differs only in the material use (aluminum instead of carbon). I am thrilled by the switching behavior, is the premium variant in nothing after.

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New customer

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Following continuous struggles in adjusting the previous 12-speed (10-50) Sram Eagle SX rear derailleur, and its continuous chain hopping between sprockets, I decided to purchase the GX version. Installed in 10 minutes and adjusted in 15 minutes, thanks to the new DIMA provided to adjust the distance between the pulleys and sprockets. It now shifts every gear perfectly, is super strong thanks to being all aluminum with PVC pulleys, costs half as much as the infamous XO1 and above while keeping the quality gap low. Top shipping: ordered Sunday morning and received on Wednesday (in Liguria). Great packaging to keep the product intact

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Have the rear derailleur in the replacement exchanged for a NX. The difference is already clearly felt. Gears are changed Sram typical audible and noticeable. Works flawlessly even under mud bombardment

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Class store

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It was easy to install the derailleur when I understood that the adjustment tool has to be placed with the chain engaged on the second last chainring and the adjustment on the last one.

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Excellent service. Was struggling to get this part but they emailed me when it was back in stock and was shipped to me in the UK very fast. Bike is back up and running. Very happy

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Upgrade from nx to gx done and good noticeable difference for not too much money

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Better than previous sx version.

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quality product, refurbished, looks more robust, and prepared for 10-52 in 3 days the product arrived at home I will definitely reorder with Mantel!!!

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After days of fruitless searching, both in stores in my town and on -line, I came across Mantel's site. Et voila, found replacement (SRAM GX Eagle 12-speed), at an honest price, in line with the market and shipped fast. They definitely gained a new customer.

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serious seller, original products and fast shipping. a little disappointed x the packaging as my sram shifter was spinning x all over the box that packed it xbecause the box that packed it had not been closed..... x luckily the shifter was not damaged

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I managed to break my original Sram GX derailleur (totally my fault). In total despair, I ordered a replacement one on Tuesday night. Mantel managed to ship it on Wednesday morning and I received the derailleur 2 days later, in Sweden. Mantel deserves also 5 stars for its excellent service :) Now about the derailleur itself. This is an excellent and affordable 12 speed derailleur. it shifts up and down super quickly and, if properly adjusted, speeds will never jump from one cog to the other. It feels even faster and more precise than the previous GX version I had. With the longer cage this one can also drive the newer cassettes with a 52 teeth cog. Installation and adjustment is easy. There is even an adjustment gauge on the box, to precisely set the B-screw. As I had no clue on how to use it, i downloaded the PDF manual from Sram site. This is actually simple and it's perfect to fine tune the derailleur. Coupled with a new XX1 chain my transmission is completely quiet with fast and precise shifting.

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Fast and accurate shipping

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Came as a replacement for an NX, nothing to see, easy to adjust (you have to be very precise). Very fast shipping at a good price.

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Got this to replace my SX shifter which wasn't shifting right - the GX is a big improvement and the newest version here is a great price for GX. Haven't had it long by I've used it for 6 or 7 muddy rides and shifting is still excellent.

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I bought this to replace my NX on my Ghost ebike which was constantly needing attention. Really easy to fit even for someone like me with very limited knowledge in the mechanics side of things and it's been on the trigger every gear change. Smooth and reliable with a classy look.

Product as described good price excellent delivery time faultless I will be using this company again already looking at my next order thank you

Precise changes, no slop or vagueness. Weighs a few grams more than higher specification models but is a fraction of the price, which is good since I'm replacing a damaged one as the result of clipping a tree stump. Thought I'd take the opportunity to go for the 52T so when my 3rd chain wears out and my cassette is due for replacement I can get a slightly wider gear range.

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Buy to replace an ex1 derailleur (very expensive cassette) Coupling with an Nx cassette does the job perfectly and will be much cheaper in the future!

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Bought to replace a four year old X01. Easy to set up and so far is proving very accurate and reliable in use.

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The product is fantastic, and the service exceptional. The derailleur is backwards compatible with my 12Speed, which is fantastic for the price.

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Upgraded from sx as I managed to bend it out on the trail. Easy set up, feels much more robust as it’s more aluminium than plastic. Perfect shifting so far!

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Shifts flawlessly so far, easily equivalent to Shimano XT I’ve previously ran. These guys are selling for a steel currently too and with super quick delivery, couldn’t ask for more.

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Bought this as an upgrade to my sram SX rear mech along with the GX shifter. I recently bought the GX 12 speed cassette aswell so aside form the crank arms I’m fully running the GX system now and I’m extremely happy with the set up. The rear mech itself is noticeably smoother when shifting in comparison to the SX model.

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