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OneUp Components adds XT M8000 narrow-wide chainring kit

Written by Tyler Benedict
11 Comments
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OneUp Components XT narrow-wide chainrings

Adding to the their growing line of aftermarket narrow-wide chainring collection, OneUp components has just released a version for the new Shimano XT M8000 cranks.

The crankset comes set up to work with both single and double chainring configurations by using different length bolts depending on which you choose to install. OneUp ships their new chainrings with shims that allow you to use the stock bolts with the cranks, saving your hardware. They also maintain proper chainline.

They say it saves 30g and about $20 over the stock XT single chainring, and it’s being raced by several EWS teams.

OneUp Components XT narrow-wide chainrings

Official specs are:

  • Material: 7075-T6
  • Chainline: 49mm
  • Weight: 45g (30T), 51g (32T), 60g (34T)
  • Compatibility: Shimano XT M8000 1X and 2X armsets and MT700 2X armsets
  • Colors: Black
  • Price: $55 USD

They’re available now direct from OneUp, right alongside their 45T expander cog for the cassette, giving you a wider-than-stock range.

OneUpComponents.com
Tyler Benedict
11,282 articles

Tyler Benedict is the Founder of Bikerumor.com, where he’s been writing about the latest bikes, components, and cycling technology for almost two decades. Prior to that, Tyler launched and built multiple sports nutrition brands and consumer goods companies, mostly as an excuse to travel and ride in new places.

Based in North Carolina, Tyler also loves the Vanlife & family adventure travel and is always on the lookout for the next shiny new part and off-grid adventure.

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11 Comments
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rub-a-dub
rub-a-dub
9 years ago

Would love to see some real world comparison between these and the standard XT chainrings. Is there a reason Shimano doesn’t do the “narrow/wide” thing?

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PTymn Wolfe
PTymn Wolfe
9 years ago

@rub – Shimano doesn’t do narrow-wide because then they would be admitting Sram did something right.

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Hawgie
Hawgie
9 years ago

Does the new pattern allow to take the chainring off without removing the crank arms?

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Jan
Jan
9 years ago

Why buy an aluminum chainring when the original made of steel will last much longer? The problem with narrow/wide rings is that when the chain is at a big angle, and about to engage the wide tooth, the tooth will have to press the chain sideways. The result is grinding and friction. That is probably the reason why Shimano don’t use N/W rings on the new XT and XTR. They instead have something they call “Dynamic Chain Engagement”, with a hook tooth design and broad shape which reduces wear and noise when compared to a narrow/wide design.

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Mac
Mac
9 years ago

The RD clutches do far more to prevent chain drops than the front ring teeth.

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Dub
Dub
9 years ago

/r/hailcorporate Jan

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Jan
Jan
9 years ago

You will find many threads on mtbr.com where people have problems with grinding N/W chainrings when using low gears.

“Nothing dropped yet – and it’s the quietest retaining chain ring we’ve ridden.”
http://factoryjackson.com/2015/07/10/shimano-xt-11-speed-first-ride/

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Eric Hansen
Eric Hansen
9 years ago

More like “hail the engineers”, not some (deleted) in a barn.

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Tim
Tim
9 years ago

@Jan, Eric Hansen- Plus that.

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Skip
Skip
9 years ago

Hey Eric, that was cool you even insulted the Wright brothers………..If half of the negative folks on this site on any given day could actually come up with a viable product they could be super stars……………….. Any given product will make it or not make it on it own merit , that is the real test. So those of you who know so much…. get out there and make or invent something.

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Eric Hansen
Eric Hansen
9 years ago

After I start making things, I will be unable to sling mud, as it would look petty. Not having yet started my own firm doesn’t prevent me from calling pointless cash grabs for what they are.

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