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Oneup Components 104 BCD Oval Chainring

Item #: CG209A06
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Oneup Components 104 BCD Oval Chainring

Oneup 104 BCD Oval Narrow Wide Chainring

Narrow-wide chainrings are a game changer for single-ring drivetrains. Featuring built-in chain retention technology, the OneUp Narrow Wide Chainring allows you to run a 1x drivetrain without using a chainguide! The trick is the tooth profile consisting of alternating fat/skinny teeth to fit more closely into the narrow and wide plate spacing of a normal chain, "grabbing" the chain and holding it more securely.

This model of the OneUp is compatible with 9, 10, 11 Speed Chains and 104 BCD cranks. It also features a 12% ovality with a 115 degree clocking from the crank arm to put the major axis of the oval in your power stroke. This efficiently utilizes the strongest muscle groups to increase positive work, while picking up the slack in the weaker zones to reduce the negative work, smoothening out the rotation to a perfect spin.

Threaded for included M9 hardware. No M7 M9000/M9020 bolt pack required

REVIEWS

Vital MTB - "The OneUp Traction Ring one of the simplest, most affordable, yet still impactful, upgrades you can make to your ride."

Oneup 104 BCD Oval Narrow Wide Chainring Features :

  • Provides more traction by smoothing out the torque delivered to the rear tire
  • 12% ovality (32T is equal to a 30T-34T range)
  • 115 degree clocking from crank arm puts the major axis in your power stroke
  • Narrow Wide tooth profile eliminates chain drop with the perfect chain mesh fit
  • Saves over 35g versus stock ring (32T)
  • Perfect chainline 49mm (corrected from stock 50.4mm) for a quieter drivetrain with improved chain wear and best drop performance
  • Includes shims to allow compatibility with your stock Shimano 1X or 2X hardware (no need to buy a new bolt pack)
  • Aggressive crud chamfers for awesome mud shedding performance and extended ring life
  • Reinforced Wide tooth design provides maximum ring durability when run without a bash
  • Made from 6mm hard wearing 7075-T6 aluminum plate
  • Reuse your existing 8-10mm long ring hardware. No new bolt packs required, saves you $15

Oneup 104 BCD Oval Narrow Wide Chainring Specifications :

  • Material: 7075-T6
  • Weight: 49g (32T)
  • Compatible with: 9, 10, 11 Speed Chains and 104 BCD cranks
  • Colors: Black
4.9 / 5.0
26 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
22
4
0
0
0
worth a try
I was use to running a 32t sprocket, with this it immediately felt like I was running a bigger gear, however it was easier to spin the cranks. a strange sensation. I have noticed on technical assents it keeps the rear tire traction more constant. I was under the impression that it was snake oil, but I guess I was proven wrong, just put a 40t dinner plate on the cassette I'm anxious to see how it does with it. basically the best way to sum it up is I don't not like it.
October 23, 2015
Location:
the Shire
Like the oval concept makes sense. Holds chain on. Made well
The chain stays on good. Don"t know if it works any better than round sprocket. Since I changed from 3x10 to 1x11 and it works great
June 19, 2017
Purchased
3 months ago
Location:
Mesa Arizona
32 tooth ONEUP
Prompt delivery

PROS: Lightweight, Easy To Install

CONS: None
January 31, 2016
Location:
Louisiana, la
Quit messin a ROUND
Tried it out on my hard tail, using the 32, which I had been using with a round ring on a 1x system. Finishing some of the same climbs a gear down on the cassette with the oval, slightly faster & even feeling a tad fresher afterwards. Chain retention has been excellent. Next time I get rings for my other 1x bikes, a full suspension, & single speed, I'll get these.

PROS: Lightweight, Attractive Design

BEST USES: Mountain Biking, Racing
March 22, 2016
Location:
ATL, GA
Not sure yet
I've only ridden with this chainring s few times so I can't tell for sure if it is a help or hinderence. I do like how it's made however. There is a built in offset on the chainring that you can't see in the photos. This greatly improved the chainline on my bike and improved the performance of the M8000 1x11 drivetrain. There are no instructions so I had to watch a few different YouTube videos to make sure I got the orientation correct but that's no big deal. I look forward to continuing my testing over the spring to see if it's a keeper or not.

PROS: Lightweight, Durable, Attractive Design, Easy To Install
February 15, 2016
Location:
Las Vegas, NV
Easier climbs!
Noticed no "bobble" as some other reviews have stated, but did notice smoother climbing torque through the whole crank rotation. Climbing is a bit faster, which was the main goal with this upgrade. No dropped chains, either!
May 16, 2017
Purchased
4 months ago
Location:
Vermont
Great
Been able to pull un the up hills and does not run out of force on the flats. It's a 32!
January 3, 2017
Purchased
11 months ago
Location:
Ensenada, B.C. Mex.
Makes those climbs a little easier
It didn't really feel much different but I was leaving my bud up the hills after installing this ring. He had always been right on my heels and he was noticing me pull away after I installed. I would recommend this product. The quality is good and the price beats the competitors.
April 17, 2017
Purchased
1 year ago
Location:
Fayetteville, AR
Eliminates Dead Spot
Quick delivery time.
September 27, 2016
Location:
Irvine, CA
An amazing upgrade
An amazing upgrade. Amazing how much more power you get and no chain drops.
May 11, 2016
Location:
Escondido CA

Q & A

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Browse 4 questions Browse 4 questions and 13 answers
Can you use this w a 9 speed 2x9? 22/32 w bash guard? Thanks
Hayop30 on Dec 11, 2016
BEST ANSWER: No, this is a wide/narrow chainring. That means every other tooth is wide, to fit in the wider link of the chain, and ever other tooth is standard/narrow to fit in the narrow links of your chain.

Because of this the chain only fits onto it when the proper links are lined up with the proper teeth. It's meant to hold the chain in place and keep if from jumping off, it's not meant too be shifted.
Will this work with SRAM 1x setup?
A shopper on Jul 14, 2017
BEST ANSWER: Yes, it will work with any 10 or 11 speed chain . You will have mixed results with a 12 speed chain, however.
Will a 30t oval ring fit behind a 32t bash guard?
Taco on Sep 22, 2017
BEST ANSWER: Yes it will. In two spots the chain will be close, but pedal protects it.
Will this work with an XTR FC-M9020 crankset?
Mountain Bike Man 66 on Jun 19, 2017
BEST ANSWER: No, since the XTR crankset has asymmetrical bolt hole layout. I have attached the correct one.
Oneup Components XTR M9000 Chainring
Oneup Components XTR M9000 Chainring

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.