On test: Praxis Works 1X Wide/Narrow and Cold Forged 2x chainrings

Aftermarket company continues to push drivetrain alternatives

Components

Praxis Works 1X Wide/Narrow

Praxis Works machined the profile of its 1X Wide/Narrow chainring to match the inner and outer chain plates for better retention.

Santa Cruz, Calif.-based Praxis Works has jumped on the narrow-wide chainring bandwagon with the release of its own 1X Wide Narrow chainrings in sizes from 32-38 teeth in the 104 bolt circle diameter (BCD). The company also released a pair of MTB Cold Forged 2X chainring sets that use their LevaTime ramp clocking to speed shifts. The 2x sets are available in either a 36/22- or 38/26-tooth combination and come in the standard 104/64 BCD configuration.

Pioneered by SRAM, narrow-wide chainrings have gained popularity for their ability to reduce chain drops by decreasing the tolerance between both inner (narrow) and outer (wide) chain plate gaps and their corresponding chainring teeth. The concept has been mimicked by numerous aftermarket suppliers but most lack a small hook profile present on the SRAM design that’s at the center of the company’s patent application for the technology.

Hooked or not, many riders report a good track record with narrow-wide in conjunction with a high chain tension or “clutch-style” rear derailleur such as Shimano’s Shadow Plus or SRAM’s Type 2, which is how Praxis Works recommends you run their rings.

Starting at $50, the Praxis Works 1X rings are about half the MSRP of SRAM’s X-Sync versions. The MTB Cold Forged 2X chainring sets go for $130.

We’ll be mounting the Praxis Works 1X Wide Narrow and MTB Cold Forged 2x chainrings on some incoming test bikes and let you know how they perform in a long term evaluation late this summer.

PraxisWorks_LevaTime_2X_1

The new Praxis Works 2x chainring sets feature the company’s LevaTime clocking ramps to aid in shifting.

Praxis Works MTB Chainrings

1X Wide/Narrow

  • 32, 34, 36, or 38-tooth
  • Compatible with Shimano, SRAM and KMC 10-speed, and SRAM 11-speed chains
  • Made of machined, hard anodized 7075-T6 aluminum

MSRP: Starting at $50

Cold Forged MTB 2X Sets

  • 36/22-teeth, 104/64 BCD
  • 38/26-teeth, 104/64 BCD
  • Recommended for use with Shimano and KMC chains
  • Made of cold forged, heat-treated 7075-T6 aluminum

MSRP: $130

For more information visit praxiscycles.com.

On test: Praxis Works 1X Wide/Narrow and Cold Forged 2x chainrings Gallery
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Praxis Works MTB 2X Chainring Set

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Ramps and Pins

LevaTime uses a series of strategically clocked ramps ad pins to move the chain between chainrings quickly.
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LevaTime

We hear LevaTime works great, but hate that it puts an MC Hammer song on our minds.
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Praxis Works LevaTime

The little ring of the Praxis Works MTB 2X Chainrings Set is a simple affair.
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Praxis Works 1X Wide/Narrow

A view of the highly manipulated inside of the Praxis Works 1X Wide/Narrow chainring.
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Praxis Works 1X Wide/Narrow

About the author: Don Palermini

Chicago-born editorial director Don Palermini became a cycling-based life-form in the sixth grade after completing a family road bike tour of his home state. Three years later he bought his first mountain bike to help mitigate the city's pothole-strewn streets, and began exploring the region's unpaved roads and trails. Those rides sparked a much larger journey which includes all manner of bike racing, commuting, on- and off-road bike advocacy, and a 20-plus-year marketing career in the cycling industry. Now residing in the San Francisco Bay Area and pedaling for Mtbr, his four favorite words in the English language are "breakfast served all day," together in that order.


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  • Reality Check says:

    Why isn’t the narrow wide ring cold forged? I was hoping for a narrow wide ring that was cold forged, instead of a narrow ring that everyone else already offers.

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