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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
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Description
EK 420SH E-Moto ChainEK 420SH chain NON O ring standard chain for less power loss Gold inner & Gold Outer plate Black Carbon rollers 120 Links Length C Clip Master link Sprocket Size (Teeth) Chain Size 42 Tooth 104 link 48 Tooth(OEM size) 106 link 52 Tooth 108 link 54 Tooth 110 link 56 Tooth 112 link 58 Tooth 112 link 60 Tooth 114 link 64 Tooth 116 link
- EK 420SH chain
- NON O-ring / standard chain for less power loss
- Gold inner & Gold Outer plate
- Black Carbon rollers
- 120 Links Length
- C Clip Master link
| Sprocket Size (Teeth) | Chain Size |
| 42 Tooth | 104 link |
| 48 Tooth(OEM size) | 106 link |
| 52 Tooth | 108 link |
| 54 Tooth | 110 link |
| 56 Tooth | 112 link |
| 58 Tooth | 112 link |
| 60 Tooth | 114 link |
| 64 Tooth | 116 link |
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
4.6 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
The only one I'll use!
As the title says, this is the brand to get!! It's fast-acting, doesn't give me weird dreams like some do, and I never wake up feeling groggy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2025
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
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Reviewed in the United States on January 10, 2013
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014
★★★★★ 5
Excelente Muy Satisfecho
Servicio excepcional, cuidadoso, el producto muy bien empacado. Y el tiempo de entrega fue el acordado. Y del producto ni hablar, excelente.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
seems to work just fine
Helps me sleep. I also use Mg, B complex and medical cannabis oil before bed. My sleep isn't great otherwise here in the good ol' USA (unlike in Europe where I sometimes go for complicated issues/not vacation; which indicates issues with the much higher radiofrequency exposure allowed in the US than in the European country where I sleep like a happy baby). Just wait for 5G, then I probably need to reinvent my sleep protocol if I want to get any rest. But well, with the 5G impact on the biosphere, we may not be here much longer then. That means we better stop 5G before it's all roleld out.
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Reviewed in the United States on August 2, 2019
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