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104BCD Round Chainring with Bolts
4 Colors to Choose
104BCD Size
104BCD means the diameter of the circle formed by the center of the installation hole is 104mm.
Please confirm that the crank is 104BCD mounting hole before ordering.
- Material: Aluminum 7075 & CNC Process, lightweight design
- Color: black, red, blue, golden
- BCD: 104mm
- Specifications: 30T,32T,34T,36T,38T,40T,42T,44T,46T,48T,50T,52T
- Support 7-12 Speed System
- Each chainring sends with free 4 pairs of bolts
DrumStyx
Reviewed in the United States on February 6, 2025
The description of the part that I ordered specified 42t (42 teeth). The order got processed as a 40t chainring; yet the part number stamped on the item is "DCW-42". Rather than return the chainring for the proper 42t model, I got impatient and opted to sacrifice the two teeth so that I could get my ebike operational. The 40t works on it, but is not optimal.I'm not certain how my order got switched to 40t from 42t. or why the stamped part number is DCW-42 instead of DCW-40. I suspect that to be an error in production and quality assurance. The price would have been reasonable for the item that I intended to order. In the interim, I'll find out how well this 40t performs compared to the stock 42t chainring that it is replacing.
Herman
Reviewed in the United States on February 15, 2025
This is good quality and great price. Chainring didn't look like the picture but it's ok as long as it works
Meirion
Reviewed in Mexico on January 9, 2025
El plato y los pernos de fijación son de muy buena calidad. El plato es muy ligero por lo que no incrementa el peso de la bicicleta. Estoy muy satisfecho con la compra.
Geoff Polacek
Reviewed in the United States on January 20, 2025
Felt like a quality product. I had a 36 tooth chainring that I wanted some higher gearing for commuting so I didn’t have to max out the rear cassette so often. Just installed this 40 tooth chainring, so I don’t know about durability. Wish I could find a steel version. This one was aluminum as advertised.
Mr68K
Reviewed in the United States on September 21, 2024
This is all you need to convert a 3X or 2x drive train to a 1x as long as your chainrings are not riveted in. Just unbolt, all three and bolt this one where the center one was with the included shorter nuts.Note - you can also cut down the bolts that hold the first chain ring on so the chain does not get smashed into your BB tube in the unlikely event you do drop a chain. I used a mill but I don't see why you can't do it with an angle grinder. See picture 1 and 2.love rant bellow:I can't believe how awesome the narrow-wide chaining is compared to a regular traditional one. No more dropped chains, even without a derailleur guide!!! For only $12 each we have converted 3 bikes over to 1X drive trains. You get no dropped chains and the ability to focus on riding and not shifting. Long live the narrow wide!!!
Jeff Wallace
Reviewed in Canada on August 30, 2024
Very happy with delivery time and chain ring has no flaws. It fit my new 104 BDC crank perfectly. Hope it stands up to raining western Canada this winter
Richard Davis
Reviewed in the United States on June 12, 2024
Fits well and does the job for a fair price.
Passwrod
Reviewed in Canada on February 19, 2024
Lightweight, well fitting and looks pretty good. Works well on my 8 speed igh and singlespeed. However, it may be a little off round, as the singlespeed tension bobs up and down.
Marvil Broadbent
Reviewed in the United States on December 25, 2024
It looks good on the bike and meshes well with the chain even with cross over gears.
jonathan tupta
Reviewed in the United States on December 16, 2024
Great item, looks good, fits perfect, Thank you, Jon
Matt
Reviewed in the United States on November 22, 2024
Enough said in the title. This was a great product to upgrade my MTB drive train with.
Carmen Gebauer
Reviewed in Germany on July 8, 2023
für fahrrad
Friedvati
Reviewed in Germany on July 23, 2023
Kette läuft gut über das Kettenblatt, schöne Optik. Lieferung ging schneller als angekündigt
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