Reviews SHIMANO | Shimano Deore M6100 1x12 Speed Derailleurs Groupset 12 Speed Right Shift Lever Dowel CN Chain RD Sunshine Cassette 46T 50T 52T – Real User Experiences

Read real user reviews and experiences for SHIMANO | Shimano Deore M6100 1x12 Speed Derailleurs Groupset 12 Speed Right Shift Lever Dowel CN Chain RD Sunshine Cassette 46T 50T 52T, including opinions, usage feedback, and everyday insights.

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Review (901+ user reviews)

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5.0
/5
901 Ratings
H
H****u
Jul 21, 2026
Top quality! Tested today! Everything was perfect, and the seller was helpful with any questions about different information. Top quality!
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H
H****u
Jul 21, 2026
Great product, looks high quality with nice finishes. Highly recommend, just need to install and test it now.
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B
B****0
Jul 21, 2026
It seems like it's authentic and looks great so far. Once I have it installed, I'll update my review, but for now, everything's good.
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Y
Y****d
Jul 21, 2026
I placed another order from this shop and this time everything arrived perfectly. Highly recommended.
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H
H****u
Jul 21, 2026
I'm really happy with my purchase; everything feels legit and well-made, like it's real Shimano. I'd definitely recommend buying from Newbie Bike Store.
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v****2
Jul 21, 2026
Great price and quality, I like how it works since I compete in races and it has worked really well for me.
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x****n
Jul 21, 2026
The product is just like the ad says. It fits perfectly and works great, especially for the MTB 520 bike.
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I****p
Jul 21, 2026
Really good quality, feels and looks like the cassette is genuine. It's quite heavy but the gear changes are smooth.
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*****
Jul 21, 2026
I'm really happy with this purchase, it made a huge difference when riding my bike. Climbing hills is so much easier now, plus they're authentic and of great quality.
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C
c****2
Jul 21, 2026
My bike looks really nice now. The paint job and the transmission are all super good, and I finally got a Deore.
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I****p
Jul 21, 2026
The whole set looks pretty decent; at first glance, there's nothing wrong with the quality, and everything you need turns and switches. I'll install it later.
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*****
Jul 21, 2026
The quality is really noticeable and top-notch. I made a mistake because I didn't research enough and ended up mixing this M6100 transmission with Deore M5100 cranks, so I had to change the chainring. But like I said, that was my mistake. Otherwise, the product is perfect and works great with the rest of the components.
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F
f****l
Jul 21, 2026
Honestly, this product is really good, it helped me a lot. I still have it and it hasn't given me any trouble.
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z****1
Jul 21, 2026
Everything arrived perfectly and we've already set it up on the bike. Now we just need to test it out.
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B
0****b
Jul 21, 2026
I was unsure if the derailleur would be completely original, but it's clearly authentic in every way, just like the chain and shifter. The only thing you might want to upgrade is the cassette to a higher-end one. This product is highly recommended.
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9****s
Jul 21, 2026
Everything is in great shape and complete, looks and feels like really good quality. They're 100% original, I've installed them, and they look amazing.
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F
f****6
May 14, 2026
The product is just as described by the seller, and the quality is excellent. I'm really impressed and I recommend it.
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y****7
May 14, 2026
Great—this product is definitely worth buying, and I’ll buy it again without hesitation. Thanks to the seller.
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Y
y****7
May 14, 2026
The app shows the package has been delivered, but in reality it hasn't. It took 6 days before I finally received the package.
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W
w****0
May 14, 2026
It took a month and two days to get to Mexico, but it was worth it, perfect for my bike, thanks to the seller.
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2****q
May 14, 2026
I always have problems with the delivery person—they never show up in person, and I should choose a more responsible delivery service.
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M****q
May 14, 2026
Everything arrived as expected, and the product is exactly as advertised—in this case, a 12-speed 50T. I wish the drivetrain had come with a box, but that doesn’t affect the product’s quality; it’s just a personal preference. For anyone still hesitating, the Sunchine SZ cassette works perfectly with an HG 11-speed hub—it fits seamlessly. Overall, it was a great purchase, and the seller was extremely helpful.
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s****9
May 14, 2026
Everything came in great shape and is exactly as described, 12s 50T. I would have liked the shifter to include the case, but that’s just a personal preference. For those wondering, the sunchine sz cassette works perfectly with the HG 11s hub. Overall, an excellent buy and a fantastic seller!
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A
a****4
May 14, 2026
The product looks original and came with just a small detail on the rear derailleur, but it doesn't affect the function! I recommend the seller and the store!
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D
5****d
May 14, 2026
Everything arrived fine and I loved it! It looks original, and I definitely recommend the seller highly! ✨
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w****0
May 14, 2026
Fast delivery—arrived in six days, four days earlier than expected. The transition was smooth, and it offers great value for the money spent.
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C
9****c
May 14, 2026
It looks really high quality, it's not too heavy, and the changes are smooth. I really liked it, thanks to the seller.
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L
l****4
May 14, 2026
I really like this product—it looks very high-quality and exactly as described. I’ll definitely recommend this seller.
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1****m
May 14, 2026
The product came just as promised, and everything was in great shape. Thanks, I totally recommend this seller!
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E
E****k
May 14, 2026
Everything is fine and seems like the genuine product—except for the cassette, but it looks high-quality. All that’s left is to install it, and it’ll be done. I recommend buying from this seller.
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p****3
May 14, 2026
Great product, arrived in Vietnam in good condition and relatively quickly. Highly recommend buying from this seller.
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P
p****m
May 14, 2026
Everything's going well, everything seems original except for the cassette, but it looks good quality. Just need to put it together. I recommend the seller!
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A
a****4
May 14, 2026
The product is exactly as the seller described, with original quality— I’m really impressed with this quality. I recommend this product.
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K****x
May 14, 2026
Great product for sure 👌. Good quality and arrived in excellent condition. Best of all, it was exactly as I ordered. I really appreciated the quick delivery. Definitely 100% recommended, and what I liked the most was its pressure.
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R
R****g
May 14, 2026
It arrived quickly, and I highly recommend it! It looks really high quality. I haven't tried it yet, but I'm excited to test it out. I love how it looks aesthetically. This product is great value for the quality, and the seller was really good. I definitely recommend this product! I just need to set it up to see how it works. 😍😍
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K
k****7
May 14, 2026
The package arrived in nine days, everything is well put together, all parts are original. I recommend the seller!
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B
0****b
May 14, 2026
I highly recommend these rotors since they're really affordable and of good quality. I also suggest checking out the seller!
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z****4
May 14, 2026
Great item, I ordered two and they both arrived together. Awesome seller, the product works really well and is made of good material. I definitely recommend it!
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E
E****k
May 14, 2026
The product appears to be genuine, and there’s only a minor detail on the rear drive unit, but it doesn’t affect its functionality! I highly recommend this seller and store!
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9****s
May 14, 2026
Fast delivery, excellent product, really comes just like it looks in the pictures, I recommend it 10/10!
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*****
May 14, 2026
The product arrived on time, it’s very good, and there were no issues with the item. Thank you—I recommend everyone to buy from this seller!
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X
x****4
May 14, 2026
I'm really happy with my purchase; the products are great quality and all original. I appreciate the seller's quick shipping.
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D
D****7
May 14, 2026
Very good—I’d like to commend the seller; the product arrived exactly as I wanted. Thank you very much.
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Q****o
May 14, 2026
I’m very satisfied with my purchase. If anyone is still hesitating, feel free to buy with confidence! This is a genuine Shimano product—my bike mechanic has already checked it out. It’s working perfectly at 100%! The shifting is precise. It locks securely in place to prevent rattling when riding on bumpy roads. I hope it’ll last a long time. I’ve upgraded from my old 3x10 Shimano XT/SLX drivetrain to this 12-speed Deore, and I don’t regret it at all. I’ll definitely recommend it and buy again in the future! Congratulations to the seller and AliExpress!
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*****
May 14, 2026
It got to Chihuahua, Mexico really quickly, and I recommend the seller; everything matched the description.
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F
f****x
May 14, 2026
I didn't get the product due to the delivery issues, but the seller was great and I got my refund, thanks!
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5****w
May 14, 2026
Beautiful product, reliable seller. I really love these brakes; I’ll update you once I’ve installed them on my bike.
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F
F****p
May 14, 2026
The delivery was quick, showing up in six days—four days early. The shifting feels smooth and it's a great deal overall.
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C
2****c
May 14, 2026
Huge upgrade for the bike, I would definitely buy from this seller again. I installed it on the bike and it works wonderfully!
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Q
Q****o
May 14, 2026
It looks like it’s of good quality, not too heavy, and the switching is smooth—I really like it. Thanks to the seller.
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