Praxis Works
Buzz 130BCD Chainrings (53/39t)

So you brought your big boy legs did you? Well, these Praxis standard 130BCD road chainring sets are engineered for the highest performance shifts in all conditions and under any load. LevaTime® performance and our proprietary forging processes, give the fastest shifts and longest lifetime of any chainring on the planet. We offer them in a 2 different form factors.

SHIMANO - Buzz rings work great with the new Shimano 10/11/12sp 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 11sp 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 Derailleur - Yes, our rings work great with SRAM “Yaw” front derailleur.

CAMPY - Our rings work great with Campy 10/11/12sp chain and drivetrains (EPS 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 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.

Features:

• Updated “Buzz” design for both traditional 5-arm & 4-arm w/hidden 5th (Exogram).
• Now including long and short threaded catch pins (Buzz Rings only).
• LevaTime® shifting technology.
• Cold Forged and Hard Anodized 7075-T6 Aluminium.
• Work with Shimano™ 10/11/12, Campy 10/11/12, SRAM 10/11 drivetrains.
• We highly suggest KMC, Shimano™ or Campy chains.
• Not compatible with Campy 5-arm or 4-arm as Campy has proprietary bolt pattern.
• The Praxis standard 130BCD chainring is GREAT for use with Di2 or EPS systems.
• InfoCrank, Power2Max, SRM, and Quarq power meter compatible.