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The KMC Unisex S1 Wide Chain is a premium single-speed bicycle chain designed for BMX, track, and fixed gear bikes. Featuring an anti-drop design with wider, thicker plates and brushless construction, it delivers enhanced durability and a quieter riding experience. With 112 links and a tensile strength exceeding 3500 lbs per inch, this chain ensures reliable performance and easy installation, backed by a 2-year manufacturer warranty.





| ASIN | B07J2SYXFK |
| Best Sellers Rank | 13,501 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 44 in Cycling Chains |
| Brand | KMC |
| Country Of Origin | Taiwan |
| Customer Reviews | 4.4 4.4 out of 5 stars (417) |
| Global Trade Identification Number | 04715575891132 |
| Included Components | 1x Single Speed Chain |
| Item Length | 56 Inches |
| Item Type Name | Kmc Chain |
| Item Weight | 200 Grams |
| Load Capacity | 2E+2 N (tensile) |
| Manufacturer | KMC |
| Manufacturer Part Number | BS1WBR112 |
| Material | Metal |
| Model Number | BS1WBR112 |
| Number of Links | 112 |
| Pitch | 0.5 inches inches |
| Plate Thickness | 0.13 Inches |
| Product Warranty | 2 year manufacturer |
| Recommended Uses For Product | Single speed bikes, internal gear bikes, BMX bikes, track bikes, and fixed gear bikes |
| Roller Diameter | 8.6 Millimeters |
| Specification Met | Metal |
| Strand Type | Single |
| Tensile Strength | 3597.16 Pounds Per Inch |
| Unit Count | 1.0 Count |
C**N
Good good
This item did the job. Plenty of links and easy to install provided you have a chain tool that can drive pin out to remove the required number of links. As for delivery. On this rare occasion, Amazon managed to deliver on time.
M**Y
Great chain.
Its definitely a bike chain! Its even the one advertised! Who would've thought?! I purchased the thing I needed and it turned up as described! Amazing!
J**S
cool
cool
A**R
Low quality cheap rubbish
The feel and look of this chain just screems poor quality. I don't think I'll be leaving it on long and I won't risk a long ride. Wish I'd spent a little more and bought a Shimano or SRAM chain.
L**N
Good chain
Thick strong chain, all I ever wanted
J**J
Easy fit
Amazing quality. Very good price. anti rust. Easy to install
A**S
Snapped on first ride
Assumed it was a duff chain from the outset as I have never had a KMC chain fail so quickly
X**F
Poor quality
Snapped after a month
H**E
Installed it already on my son's single speed bike. It works great. Couldn't be happier.
F**R
È la prima volta che mi sono cimentato in una sostituzione della catena di una bici e ho optato in questa, poiché ho una bicicletta pieghevole monomarcia. Il montaggio è molto semplice e dentro ci sono le istruzioni su come fare, non servono tool particolari solo pazienza e pratica, la consiglio a tutti
N**Y
High quality
J**K
Convient pour velo avec changement vitesses dans moyeu
W**!
Great chain with good price
Trustpilot
1 month ago
1 month ago