LEVATIME SHIFTING TECH

||LEVATIME SHIFTING TECH
LEVATIME SHIFTING TECH 2017-12-21T19:05:34+00:00

NOT YOUR AVERAGE CHAINRING

Our LevaTime™ shifting is the product of years of relentless testing and tweaking. The final result is a set of some of the finest and fastest-shifting rings available. With a LevaTime™ ring, several shift elevators are placed strategically at points on the ring to provide a perfectly timed lift.

Synchronized ramps are tuned with a specific inner ring, providing a clean channel for the chain to move upwards. Each individual tooth is sculpted to handle a specific duty. Along with that, precisely located scallops help control chain movement and prevent chain suck.

After riding these rings, you’ll realize these aren’t your average, ordinary chainrings.

LevaTime™ takes shifting to the next level.

TIMING IS EVERYTHING: MATCHED SETS

Like all great marriages in life, timing is everything. A large part of our LevaTime™ shifting system is the timing and clocking of the outer and inner rings together. All of the Praxis ring combinations are “Matched Sets” precisely designed in concert for an optimized shifting experience. Praxis engineers spend an obscene amount of time laboring over tooth shape, ramping, and the precise location of shift elevators. All of this is done in order for the inner and outer ring to be in perfect sync at the moment you shift.

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NO TWO TEETH ARE ALIKE

One thing many people notice right away is the complex shaping of the teeth on a Praxis chainring. With all the duties required of a chainring for smooth shifting, we needed to sculpt very elaborate teeth profiles to better control the chain during upshifts and downshifts. By forging a chainring where no two teeth are alike, we create a ring-set that allows the chain to smoothly move laterally and vertically.

BALANCED FOR SHIFT QUALITY

The highest overall shift quality is our primary goal and what we constantly strive for. In order to get there, we focus on a balance of five main attributes: Stiffness, Weight, Durability, Shift Features, and Price. Many other companies tend to focus on just one or two of these attributes, and then the shifting quality suffers. Praxis Cold Forged chainrings are simply the most balanced rings available in order to deliver the highest shift quality.

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COMPATIBILITY

Our road rings are now made to mount to a traditional 5-arm 110 or 130BCD and now also 4-arm with hidden 5th bolt Exogramcranks.  Our MTB rings are made to mount to a 4-arm 104/64 MTB crank. In fact, we’d like to think that our rings do a great job complementing many of the most common cranks in the market.  We also know you mix and match drivetrain components, and that can affect shift performance. NOTE: For the absolute best shifting experience with Praxis Works rings we highly suggest using a KMC™, Shimano™ or Campagnolo™ chain.

SHIMANO™ — Buzz rings work great with the new Shimano 10/11sp chain and drivetrains (Di2 included.)  These new Buzz rings are made to be mounted on either traditional 5-arm cranks, and now work with 4-arm w/hidden 5th cranks (SRAM Exogram.)  *Our rings do not mount to the new Ultra 6800/DA9000 cranks with their new custom asymmetrical BCD. They also work great with traditional 5-arm mount aftermarket cranks such as THM, Rotor, Cannondale, Specialized, LOOK and FSA cranks.

SRAM™  — Buzz rings work great with the SRAM 10sp and “SRAM 22″ 11sp chain drivetrains when mounted to both traditional 5-arm SRAM cranks, and now work with 4-arm w/hidden 5th SRAM Exogram cranks. They also work great with traditional 5-arm mount aftermarket cranks such as THM, Rotor, Cannondale, Specialized, LOOK and FSA cranks.

  • eTap – Yes, our rings work great with eTap.
  • YAW FRONT DERAILEUR – Yes, our rings work great with SRAM “Yaw” front derailleur.

CAMPY™ — Our rings work great with Campy 10/11sp chain and drivetrains (EPS included.) The new Buzz rings are made to be mounted on either traditional 5-arm cranks, and now work with 4-arm w/hidden 5th cranks (SRAM Exogram.) *Our rings do not mount on Campy cranks with their proprietary Campy BCD/Design. Example…you would use a 3rd party crank like a Specialized, THM, Rotor, FSA, SRAM etc crank with our rings and then the chain and derailleurs are Campy.

Official crank and rings of the Herbalife 24 elite cycling team