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Round Oval 104BCD 30T 32T 34T 36T 38T Narrow Wide Chainring Single Chainring for 6/7/8/9/10/11/12-Speed

4.7 out of 5 stars 1,084 ratings
Price: $14.99 Free Returns on some sizes and colors
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Color: Oval Blue
Size: Select Size
  • Material: High quality 7075 aluminum alloy,Anodized surface.
  • The new narrow-wide teeth design increases chain retention, wear life, and reduces friction and noise.
  • Larger wide tooth design provides maximum ring durability and drop performance.
  • Suitable for most of Shimano and Sram cranksets, Please confirm that your crank BCD specification is correct before purchase.
  • PACKAGE INCLUDE: 1 x 104BCD narrow wide chainring.
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Product Description

DECKAS started producing bicycle parts since 2009, MTB and Road, including brakes, rotors, pedals, chain guide, chainrings, spoke tension and more is coming.

Our mission is providing the best cost competitive products among the market and always provide you better options.

Bicycle outdoor

DECKAS Round Oval 104BCD 32T 34T 36T 38T Narrow Wide Chainring Single Chainring for 8/9/10/11-Speed, Perfect for Most Bicycle Road Bike Mountain Bike BMX MTB Fixie Track Fixed-Gear Bicycle.

Material: High quality 7075 aluminum alloy,Anodized surface

Color: Black,Red

Range: 32T,34T,36T,38T

Compatibility: 7/8/9/10/11/12 speed

Size/BCD: 104BCD

Weight: 32T/41g,34T/50g,36T/55g,38T/60g

Package Included:1*104BCD Narrow Wide chainring

dental disk advantage

Dental disk advantage

The new narrow-wide teeth design increases chain retention, wear life, and reduces friction and noise.

oval 104BCD 32T narrow wide chainring single chainring

Extra power while climbing

Larger wide tooth design provides maximum ring durability and drop performance, super durable and light weight.

104BCD 32T narrow wide chainring single chainring for 8/9/10/11-speed round black

Excellent fit and great value

The 32T narrow wide chain ring is an excellent value for the offer.

easy to install

Easy to install

Easy to install and fits perfectly the 104mm bolt pattern, most of the cranksets from SHIMANO and SRAM will fit. For cranksets from other brands, please check on the diameter first.

Product information

Technical Details

Item Package Dimensions L x W x H ‎7.28 x 7.2 x 0.28 inches
Package Weight ‎0.06 Kilograms
Brand Name ‎DECKAS
Color ‎Oval Blue
Manufacturer ‎DECKAS
Part Number ‎DECKAS-Chainring-oval blue-32T
Outer Material ‎Aluminum
Size ‎32T

Additional Information

ASIN B08SMM8GLS
Customer Reviews
4.7 out of 5 stars 1,084 ratings

4.7 out of 5 stars
Best Sellers Rank
Date First Available January 11, 2021

Customer reviews

4.7 out of 5 stars
1,084 global ratings

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Customers say

Customers find the chainring works well and offers good value for money. The chainring fits perfectly, with one customer noting the perfect spacing for old 2x or 3x front rings, and another mentioning its seamless design. They appreciate its lightweight construction, good looks, and ease of installation, with one review noting it's well-made and stands up to abuse.

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FunctionalityValue for moneyChain ring qualityFitEase of installationLooksQualityWeight
39 customers mention "Functionality"34 positive5 negative

Customers find that the chainring works well.

"This chain ring looks to be well made and works fine...." Read more

"...I am pleased with this product and it works well. The fit is not on par with the more expensive Raceface chainrings...." Read more

"...Those worked perfectly. Just something to keep in mind." Read more

"Great chainring. Works just as well as others for literally a fraction of the cost. If you’re building on a budget, grab this." Read more

31 customers mention "Value for money"31 positive0 negative

Customers find the chainring to be good value for money, describing it as an inexpensive and satisfactory product.

"...All things considered, this is good value for the money spent and worth the extra work to get it installed." Read more

"Excellent value and well worth it. Very nicely machined and have ZERO problems with figment...." Read more

"...In my opinion, for an inexpensive chainring, this does pretty well." Read more

"...time will tell how long it lasts but for $15 it's an affordable replacement when it gets worn out. Just ordered my 2nd ring for another bike...." Read more

21 customers mention "Chain ring quality"15 positive6 negative

Customers find the chainring to be of good quality, with no reported issues with chain drop. One customer notes that the chain seats well into the ring, while another mentions its seamless design.

"...I've taken this on many rides and I've had no problems with chain drop. In my opinion, for an inexpensive chainring, this does pretty well." Read more

"...all the oval goodness is happening in the way that the chain travels around the ring and where stroke power meets with it...." Read more

"Great chainring. Works just as well as others for literally a fraction of the cost. If you’re building on a budget, grab this." Read more

"...There is very little spare material around the bolt holes so grinding has to be very minimal and carefully done...." Read more

19 customers mention "Fit"14 positive5 negative

Customers find that the chainring fits perfectly and is the right size, with one customer noting its slightly deep cut and longer tooth design.

"The product fit perfect" Read more

"...Quality is there and there is a slightly deep cut/longer tooth so the chain seats into the ring really well...." Read more

"...but the tabs were each about 0.5mm too long so the ring would not fit onto the crankarm...." Read more

"This fit my 2012 shimano 8x3 alivio crank without any issues...." Read more

18 customers mention "Ease of installation"16 positive2 negative

Customers find the chainring easy to install, with one mentioning it went on without complications and another noting smooth operation after installation.

"...this is good value for the money spent and worth the extra work to get it installed." Read more

"...The oval chainring is seamless - power when you need it - easy when you don’t.. Same chain, same rear cassette rides like new...." Read more

"Easy to install and my bike is faster now!! Highly recommend" Read more

"...Easy to install and have had no issues since putting it on several hundred miles ago." Read more

18 customers mention "Looks"18 positive0 negative

Customers like the appearance of the chainring.

"...On normal flat roads, this is, at best, fancy...." Read more

"...That being said it's pretty easy to figure out. This ring is great, and I highly recommend you give it a go." Read more

"...Looks good and performs perfectly." Read more

"...Love the bling factor which clearly adds power when climbing :)" Read more

15 customers mention "Quality"15 positive0 negative

Customers find the chainring well made, with one mentioning it stands up to abuse.

"This chain ring looks to be well made and works fine...." Read more

"Excellent value and well worth it. Very nicely machined and have ZERO problems with figment...." Read more

"...Quality is there and there is a slightly deep cut/longer tooth so the chain seats into the ring really well...." Read more

"...I have purchased several of these and they have all held up and worked flawlessly." Read more

11 customers mention "Weight"11 positive0 negative

Customers appreciate the chainring's lightweight design.

"...No complaints and well with conversion in both weight saved and looks" Read more

"This is a great product that is light and inexpensive. I have purchased several of these and they have all held up and worked flawlessly." Read more

"...working on bikes, this size its perfect not to big or to small and lighter than the one was replaced it with, teeths are longer so It has better..." Read more

"Fitment was excellent. Very lightweight and sturdy. It does have the spacers built into the holes so the chain doesn’t hit the crank arm...." Read more

Good replacement.
5 out of 5 stars
Good replacement.
Threaded so you have to run on the inside.
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Top reviews from the United States

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  • Russ Chesnut
    5.0 out of 5 stars Good replacement.
    Reviewed in the United States on March 17, 2025
    Color: Round RedSize: 30TVerified Purchase
    Threaded so you have to run on the inside.
    Customer image
    Russ Chesnut
    5.0 out of 5 stars
    Good replacement.

    Reviewed in the United States on March 17, 2025
    Threaded so you have to run on the inside.
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    One person found this helpful
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  • Katlyn Taylor
    5.0 out of 5 stars It was the right size
    Reviewed in the United States on January 11, 2025
    Verified Purchase
    The product fit perfect
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  • Federico Apellániz
    5.0 out of 5 stars Muy buen producto a muy buen precio
    Reviewed in the United States on August 23, 2024
    Color: Round BlueSize: 32TVerified Purchase
    Lo he montado y usado en aprox 200km y aparenta buena calidad.
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  • Robert Preato
    4.0 out of 5 stars Looks good and seems like good value
    Reviewed in the United States on May 9, 2022
    Verified Purchase
    This chain ring looks to be well made and works fine. The only issue I had was that in order to install this on my SRAM crankarm I had to grind the mounting tabs to actually fit onto the spider arms. The bolt holes are fine and spot on at 104BCD but the tabs were each about 0.5mm too long so the ring would not fit onto the crankarm. There is very little spare material around the bolt holes so grinding has to be very minimal and carefully done. I milled about .1mm at a time and kept checking fit until I got the ring to slide onto the crank arm. (this can easily be done with a dremel and grinding bit) It is best to do this very gradually so that you remove only the material that is necessary and not a bit more. (Keep in mind, I mounted this to a SRAM crankarm, this many not even be an issue with other crankarms).
    All things considered, this is good value for the money spent and worth the extra work to get it installed.
    3 people found this helpful
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  • Edward rosado
    5.0 out of 5 stars Must get and well worth it for 1X conversions
    Reviewed in the United States on July 24, 2020
    Verified Purchase
    Excellent value and well worth it. Very nicely machined and have ZERO problems with figment. The oval round idea is not new ( Shimano was one of first to use it over 20 years ago but called it Bio Pace and it was on all 3 front chainrings). As a 1X ,it’s great and you do feel the power increase as the oval side comes round the top part as you stroke down the crank. The value is the biggest benefit as others are twice to three times more expensive. Installed on Marlin 5 upgraded to a 1X drive with a hollow tech crank set. No complaints and well with conversion in both weight saved and looks
    2 people found this helpful
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  • Glenn G.
    5.0 out of 5 stars A Nice Chainring
    Reviewed in the United States on January 24, 2021
    Verified Purchase
    I bought this chainring for a winter commuter bike. I typically use Raceface n/w chainrings, but I couldn't justify spending $45.00-$50.00 for a winter commuter. I thought I would try this brand, but I was skeptical of the quality. I am pleased with this product and it works well. The fit is not on par with the more expensive Raceface chainrings. I see reviews complaining about the chainring not fitting correctly - I had the same problem. However, ten minutes with a Dremel tool fixed that. I've taken this on many rides and I've had no problems with chain drop. In my opinion, for an inexpensive chainring, this does pretty well.
    2 people found this helpful
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  • Mario Lopez
    5.0 out of 5 stars Calidad
    Reviewed in the United States on May 31, 2024
    Color: Oval BlueSize: 36TVerified Purchase
    Excelente
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  • Alexander
    5.0 out of 5 stars Fantastic for those of us who bike uphill.
    Reviewed in the United States on September 17, 2020
    Verified Purchase
    I purchased the 38t as I am more of a long distance biker on roads. Going from a round to oval chain ring, I'll tell you. You can tell that its easier to pedal. You get more power when you need it and less when you dont. Although, if you dont ride hills or inclines, this will not be as useful to you. On normal flat roads, this is, at best, fancy. You'll get looks about it but unless you're trying to pedal up a big hill to a trail you want or up a really big incline to try to get somewhere, it's not as useful.
    Customer image
    Alexander
    5.0 out of 5 stars
    Fantastic for those of us who bike uphill.

    Reviewed in the United States on September 17, 2020
    I purchased the 38t as I am more of a long distance biker on roads. Going from a round to oval chain ring, I'll tell you. You can tell that its easier to pedal. You get more power when you need it and less when you dont. Although, if you dont ride hills or inclines, this will not be as useful to you. On normal flat roads, this is, at best, fancy. You'll get looks about it but unless you're trying to pedal up a big hill to a trail you want or up a really big incline to try to get somewhere, it's not as useful.
    Images in this review
    Customer image
    2 people found this helpful
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Top reviews from other countries

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  • Anthony
    1.0 out of 5 stars Description
    Reviewed in Saudi Arabia on April 18, 2023
    Color: Round BlueSize: 34TVerified Purchase
    Was not the description the item I have received
    Report
  • Eduardo_Q
    5.0 out of 5 stars Bastante bien
    Reviewed in Mexico on September 2, 2023
    Verified Purchase
    Lo uso casi diario entre 20 y 30km, a aguantado bastante bien
    Report
  • Cape breton island
    5.0 out of 5 stars Works well, hasn't failed yet
    Reviewed in Canada on August 3, 2024
    Verified Purchase
    Got it to replace a round Raceface chainring. I was worried my chain was skipping because it was stretched but I switched from a round Raceface ring to this oval shaped ring and Chain skip stopped completely. Still changed out the chain anyway but it was cool to know the chainring was the issue. Oval all the way! This ring seems to be decent quality aluminum especially for the money.
    Report
  • Jose Raygoza
    5.0 out of 5 stars Gran producto
    Reviewed in Mexico on July 7, 2021
    Verified Purchase
    Buena calidad y alto desempeño.
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  • Nic H
    5.0 out of 5 stars Solid product for the price.
    Reviewed in Canada on July 15, 2023
    Verified Purchase
    I installed this on my one of my two enduro bikes. I switched from a front derailleur system to a (this) single chainring. The dimensions and materials are the same as the much more expensive chainring on my other bike. Works great and installed easily. Also, it arrived weeks before it was scheduled.
    Report