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WEEROCK KMC BMX Single Speed Bike Chain 1 Speed Half Link High Strength Bicycle Chains 1/2" x 1/8" x 100 Links

  • Based on 74 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Apr 24
Order within 15 hours and 26 minutes
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Features

  • SIZE: 1/2 X 1/8 X100 LINKS. The total length is 50 inch. Please confirm the length of the bicycle chain you need. Our chain length must be longer than or equal to the chain length you need
  • Suit for: all the single speed bicycle,( if the length is enough).
  • High Strength: The high-strength material ensures that it is suitable for all single speed bicycles, especially for BMX, gear bike
  • KMC is the quality assurance of the chain
  • This chain cutter is a new type of chain cutter that we have been looking for. After multiple tests, it has been found to be better quality and better to use than the old one

Load Capacity: 2.5E+2 lbf


Brand: WEEROCK


Item Pitch: 0.5 Inches


Material: Alloy Steel


Specification Met: ANSI B29.1


Load Capacity: ‎2.5E+2 lbf


Brand: ‎WEEROCK


Item Pitch: ‎0.5 Inches


Material: ‎Alloy Steel


Specification Met: ‎ANSI B29.1


Item Length: ‎50 Inches


Strand Type: ‎Single


Item Weight: ‎1.12 pounds


Manufacturer: ‎WEEROCK


Date First Available: ‎July 3, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Apr 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nice half link chain for the price
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
This was a great half link BMX chain, for the given price point. I generously won’t take off rating points for a defective chain breaker, since I luckily had some extra (better) ones on hand. I also didn’t use the included “master” pin. I typically run full link chains, but happened to get a frame with super short chain stays and dropouts. Because of this, I either had to have my rear wheel hub axle near the ends of the frame dropouts. It was either that, or I had to “slam” my full link chain with my sprocket and hub driver. I highly recommend to NOT slam a chain/wheel, as doing so absolutely gouges up the teeth of your sprocket and hub driver teeth… Also, running the chain so tight, will prematurely stretch the chain, and wear out the rear wheel hub driver bearings. ... show more
Reviewed in the United States on July 18, 2025 by Brian H.

  • Good product
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
Good product looks great
Reviewed in the United States on December 11, 2025 by Neylan Robas

  • Do not buy
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
The first time out riding after installing this chain(correctly) it snapped in the middle of a power pedal while crossing the road causing me to fall headfirst into the asphalt in front of mid day traffic causing my headphone to explode in my ear and embed itself into my head.
Reviewed in the United States on November 24, 2025 by Cody hanson

  • Good quality!
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
Very good and useful! It works very well.
Reviewed in the United States on November 15, 2025 by Gertrude

  • Good, worked for what I needed
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
Good product, did what I needed it to do, don't push the chain all the way out the other side like I did.
Reviewed in the United States on October 9, 2025 by Landon M.

  • Looks great, but.......
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
Looks great once installed, but it is a pain to put on. The supplied pin broke before I was able to press it all the way in. Was able to make it work after some time messing with it.
Reviewed in the United States on August 16, 2025 by Josh W.

  • KMC.... Need I say more?
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
Don't let the low price compared to something like the Shadow brand halfink chains fool you, this is a solid chain made by a brand that has been around much longer than Shadow conspiracy and has a great reputation! This chain is made by and stamped 'KMC' and is very high quality! The included chain tool isn't the best but it does get the job done. Save some coin and purchase this chain instead of Shadow. ... show more
Reviewed in the United States on November 30, 2024 by mike mike

  • Very Stretchy chain
Size: 1/2" x 1/8" x 100 Links Style: 100 Links
Only had it on my bike for 3weeks and it broke and the chain breaker kinda sucks but it worked ok
Reviewed in the United States on August 24, 2025 by Do_u_no_de_wae

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