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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
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Description
Shimano ZEE RD-M640-SS Rear Derailleur - 10 Speed Short Cage Gray WithShimano ZEE RD M640 Rear DerailleursShimano's stabalizing Shadow RD+ clutch technology is proven to reduce chain slap and noise Product Specifics Rear Derailleur Mount Type: 10x1 Standard Rear Derailleur Mount Type: Shimano Rear Direct Mount Rear Der Shifter Compatibility: Shimano Mountain Cage Length: Short Drivetrain Speeds: 10 Weight: 250 Color: Gray keyword search: Shimano2018 Chain Wrap Capacity (teeth): 25 Largest Cog: 36 Today's Stock Status
Shimano ZEE RD-M640 Rear Derailleurs- Shimano's stabalizing Shadow RD+ clutch technology is proven to reduce chain slap and noise
Product Specifics
- Rear Derailleur Mount Type: 10x1 Standard
- Rear Derailleur Mount Type: Shimano Rear Direct Mount
- Rear Der/Shifter Compatibility: Shimano Mountain
- Cage Length: Short
- Drivetrain Speeds: 10
- Weight: 250
- Color: Gray
- keyword search: Shimano2018
- Chain Wrap Capacity (teeth): 25
- Largest Cog: 36
Today's Stock Status
Currently not available
UPC: 689228305328
EAN: Not available
Manufacturer Part Number: IRDM640SSW
RD6401
156171-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Best if you haven't had any real sleep
Works like a charm, I haven't had any real sleep for 13 days and ever since I got this, I finally got the 7 - 10 hour sleep I needed badly. It does make you drowsy and tired and thats what I love about it, this is day 4 of using it and I dont think I'll ever stop lol, the taste is normal like its not bad just bland, easy to swallow lol (thats what she said)
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Good product
This is a good product
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Reviewed in the United States on May 13, 2026
★★★★★ 5
More effective than other brands
Although melatonin doesn't work well for me, the quality of this brand is much better than brand's i've tried here on amazon and costco
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Great!
Size: 60 Count (Pack of 1)
My first impression was that the bottle looks nice. The information is clear and the dosage is easy to find. The pills themselves are slightly bigger than other capsules that I have, but this isn't a bad thing. I didn't find them hard to swallow. The smell is pleasant, which is a huge plus! I love the immunity and antioxidant support, that is exactly what I was looking for! Overall, I am happy with the product, and it has been great so far!
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Reviewed in the United States on January 3, 2021
★★★★★ 5
Great for immunity!
Size: 60 Count (Pack of 1)
I love elderberry to help my immune system stay strong. I’ve been taking it for years. These pills are easy to swallow and there’s no aftertaste later. I believe they work well since I haven’t caught as much as a sniffle since I started taking them. I would definitely recommend!
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Reviewed in the United States on December 16, 2020