SKU: 20031051697

MTX 819/2 Steel Rear Sprocket #520

Sale price$43.19 Regular price$47.99
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Shipping Estimate
USA
  • USA
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

MTX 819/2 Steel Rear Sprocket #520MTX OE Steel sprockets are strong and durable, heat treated and hand finished for longevity. Front sprockets are constructed from SCM420 chromoly steel alloy where rear sprockets are constructed from C45 high carbon steel with a Zinc electroplated finish. Designed as an OEM replacement to exceed OEM specifications at a fraction of the price, making them your ideal cost effective solution for replacing old worn and warped sprockets. OEM replacement

MTX OE Steel sprockets are strong and durable, heat-treated and hand-finished for longevity. Front sprockets are constructed from SCM420 chromoly steel alloy where rear sprockets are constructed from C45 high carbon steel with a Zinc electroplated finish. Designed as an OEM replacement to exceed OEM specifications at a fraction of the price, making them your ideal cost-effective solution for replacing old worn and warped sprockets.

OEM replacement
Exceeds OEM specifications
Heat treated and hand finished

Pitch: 520
Teeth: 41

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 20031051697

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4.4 ★★★★★
Based on 25 reviews
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lateforthetrain
Pawtucket, US
★★★★★ 4
Reliable
Size: 90 Count (Pack of 1)
The brand has a good reputation. I prefer to order products with the Thorne brand than others, because of its reputation. The magnesium by Thorne is well worth the price. It is reputable and for sleep it works well. Other health benefits are included so not just for sleep but overall health. Good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
D
Verified Purchase
Diana E
Chelsea, US
★★★★★ 5
Great brand great quality
Size: 90 Count (Pack of 1)
I bought this supplement during my pregnancy and absolutely love the quality of Thor supplements. It mainly contains magnesium and I highly recommend this brand. They use the purest ingredients and the effects are truly impressive. Since magnesium can cause side effects I was pleased to find this one didn’t have any for me.
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Reviewed in the United States on May 4, 2026
S
Verified Purchase
Sashi O'Hara
Whiting, US
★★★★★ 5
Great product
Size: 90 Count (Pack of 1)
really does help with sleep and muscle relaxation! 10/10 product.
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Reviewed in the United States on May 29, 2026
A
Verified Purchase
Adrienne
New York, US
★★★★★ 5
Taste and Quality are Excellent!
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Thorne has a reputation for high quality products so I thought I’d try this whey protein. It tastes really good! I find it easy to digest, and it dissolves easily. I plan to make this my go-to whey protein.
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Reviewed in the United States on May 19, 2026
N
Verified Purchase
Nina Miller
Massapequa, US
★★★★★ 5
Definitely sweet but good mixed
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla would be too sweet on it's own for me but with strawberries and spinach it's perfect.
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Reviewed in the United States on February 15, 2025

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