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- USA
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
BikeMaster Beta Rear Steel Sprocket 520 40T - BlackMeticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster Rear Sprockets are machined from 1045 steel and coated with a beautiful black Cataphoresis finish. A perfect match for the BikeMaster line of chains. This Part Fits: Year Make Model Submodel 2013 2018 Beta 250 RR (2 Stroke) Base 2013 2018 Beta 300 RR (2 Stroke) Base 2013 2018 Beta 350 RR
Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined from 1045 steel and coated with a beautiful black Cataphoresis finish. A perfect match for the BikeMaster® line of chains.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2018 | Beta | 250 RR (2 Stroke) | Base |
| 2013-2018 | Beta | 300 RR (2 Stroke) | Base |
| 2013-2018 | Beta | 350 RR | Base |
| 2015-2018 | Beta | 390 RR | Base |
| 2013-2014 | Beta | 400 RR | Base |
| 2015-2018 | Beta | 430 RR | Base |
| 2015-2016 | Beta | 430 RS | Base |
| 2013-2014 | Beta | 450 RR | Base |
| 2015-2018 | Beta | 480 RR | Base |
| 2013-2014 | Beta | 498 RR | Base |
| 1983-2007 | Honda | CR125R | Base |
| 1984-2007 | Honda | CR250R | Base |
| 1984-2001 | Honda | CR500R | Base |
| 2003-2009,2012-2017 | Honda | CRF150F | Base |
| 2003-2009,2012-2017 | Honda | CRF230F | Base |
| 2009 | Honda | CRF230M | Base |
| 2004-2017 | Honda | CRF250R | Base |
| 2004-2017 | Honda | CRF250X | Base |
| 2002-2021 | Honda | CRF450R | Base |
| 2017-2021 | Honda | CRF450RX | Base |
| 2005-2017 | Honda | CRF450X | Base |
| 1996-2004 | Honda | XR250R | Base |
| 1996-2004 | Honda | XR400R | Base |
| 2000-2007 | Honda | XR650R | Base |
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
4.4 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
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Reviewed in the United States on November 30, 2025
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