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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
RENTHAL Steel Self Cleaning Front Sprocket - 520Renthal front sprockets are made from a specially developed nickel chrome molybdenum steel that is case hardened and core refined to provide the ultimate combination of strength and hardness. Material: Nickel chrome molybdenum steel, case hardened and core refined. ULTRALIGHT: Extra material machined away to reduce mass. Less rotating mass faster engine spin up and reduced over run. GROOVED: Cut outs at the tooth base to allow mud to escape from
Renthal front sprockets are made from a specially developed nickel-chrome-molybdenum steel that is case-hardened and core-refined to provide the ultimate combination of strength and hardness.
- Material: Nickel-chrome-molybdenum steel, case-hardened and core-refined.
- ULTRALIGHT: Extra material machined away to reduce mass. Less rotating mass → faster engine spin-up and reduced over-run.
- GROOVED: Cut-outs at the tooth base to allow mud to escape from between the chain and chain-wheel.
Allowing mud to escape prevents added tension on the chain and the accelerated wear that would follow.
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 1166 reviews
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Product Reviews
★★★★★ 2
Eufy dropped the ball on this vacuum
Style: L50 SES
I’ll start by saying the reason I purchased this vacuum, is because I have a Eufy 25c robot vacuum that is very dependable. I decided I wanted an upgrade because the 25C was great for cleaning, but I had to empty it way too often. I just knew I would love the L50 SES. I thought it was just what I was looking for a self emptying robot vacuum with a 60 day fill capacity. Allowing 2 months before I needed to touch my vacuum. Here’s where things went wrong. I never got a chance to test the vacuum because it wouldn’t connect to my WiFi and I tried everything. Now this wouldn’t have been a problem if the L50 came with a remote control like the 25C. Unfortunately I had to rely on the App and since the L50 couldn’t connect to my WiFi, I couldn’t control the vacuum. The reason I gave 2 stars is because the customer service at Eufy is awesome. I was given the option to replace the vacuum with a new one but after researching the L50 i decided to return it for a refund. Apparently this model has a defect, because I found so many negative reviews about the same issue with the same model. The thing is I never read reviews because I have a Eufy smart scale, 25C robot vacuum and an Eufy security system and everything works perfectly. So in the end I purchased a Shark Matrix Self emptying robot vacuum and a Shark self emptying stick vacuum. If Shark’s vacuum preforms well, Eufy might have lost a valued customer. I hope this review helps someone make a informed decision. By the way Eufy self emptying vacuum needs replacement bags and the Shark Matrix robot vacuum doesn’t need bags. I will say the suction and design on the Eufy L50 SES was great.
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Reviewed in the United States on February 15, 2025
★★★★★ 5
Much better than the old model.
Style: L50 SES
I had an old s11 that finally died. This one is much better. It maps the house and follows a snake pattern. Once the mapping is finished you can select what rooms you want to clean. I like the self emptying feature. Plenty of battery life.
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Reviewed in the United States on December 19, 2024
★★★★★ 3
Good performance, flaky Wi-Fi connection
Style: L50 SES
The L50 physically works great - it does a good job of picking up dust and dirt at the end of the day. The pathfinder and route planning algorithm is fairly efficient at determining the best way to clean a room. Sometimes it kicks around bits of dust with its spinning brush without picking it up, but it's not often.
What has been terrible, however, is the Wi-Fi support. Since our provider disabled 2.4 GHz support from their router modem without notice, I use a Mac Mini to supply the 2.4 GHz signal, and even though the Eufy is next to it and my phone gets full signal strength, it still can't connect to it half the time. After it fails to connect, it needs to be restarted or even reset to try to get the connection again. Support doesn't seem to be helpful in offering a solution.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Quality product
Size: 26 Pcs for Roborock Saros 10R
Very nice quality replacement parts. Worth the money, also fast shipping from the seller.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Great for Robodock
Size: 26 Pcs for Roborock Saros 10R
Works great for my Robodock.
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Reviewed in the United States on May 11, 2026