In order to optimize and create the most precise shifting, we need to design the big ring and smaller rings as one. The 'timing' of the rings or 'clocking' is extremely important. It allows the big and small to always be in sync and alignment for the chain to move smoothly at the time you shift. This is the basis of our LevaTime ® shifting technology.
If the timing is off by incorrect mounting or you substitute in a different ring than the mated combo, the shift quality will degrade and problems can/will occur. Do NOT substitute any other ring type or tooth count into your Praxis matched pair.
YES, our rings work great on both 10sp AND 11sp drivetrains. That goes for Shimano 10/11 speed drivetrains and Campy 10/11sp drivetrains. Both Di2/Eps and Mechanical work great.
Also, our rings shift great with SRAM 10sp drivetrains. Yaw Front Der shifting included.
At this current time we have not finished our SRAM 22 testing, as it's a brand new group. When we are finished we will make an official announcement. More on compatibility here
Yep...being an aftermarket ring, we try to fit a bunch of different profile cranks arms.
If we make it too short, then that pin won't protect in case of over shift on some cranks with wider profile.
So we chose to go with a tad taller chain catch pin that people can simply file down if it does indeed touch the back of their crank arm. The vast majority of cranks out there all is perfect fit out of the box....but on just a couple model cranks out there, just file the chain catch pin down a touch and all is perfect.
Yes, but it's going to be a while. We have to pick and choose what gearing to tool up for next, and the demand is greater for other combos right now. It's in our product road map for sure as we recognize the need, but it will be some time.
Not sure yet. We know people want track rings, single road rings for fixies, and 1X cyclocross rings. We have a good-sized list of products we're going to work on...so it's just going to take time as we grow.
NO — We will not be making any "Oval Style Rings." Our #1 priority is to provide the best shifting rings possible and that can only be done with round chain rings.
You want to call your local Authorized LOOK Dealer and they can help you with your purchase of the ZED custom forged rings. We are their vendor and just manufacture the custom rings for LOOK.
YES — Our rings work great on Power2Max, SRM, and newer Quarq systems.
Some older Quarq systems were finicky in calibration and per Quarq our 52/36 set and 53/39 Clover calibrated best on those. But the newer Quarq Elsa and Riken are no problem at all. Mount them up!
Due to the amount of mixing and matching riders do with drivetrain components, shift performance is very subjective. That being said, for the best shifting experience we suggest using a Shimano, or KMC chain. The rings are also Campy 11 chain compatible when mounted on an aftermarket 110 or 130 BCD crank such as a Rotor/Cannondale/Specialized/LOOK/FSA crank.
We highly suggest using KMC, Shimano, or Campy chains. Certain other brands did not perform well in our testing and we cannot suggest those chains due to poor shift quality and higher occurrence of fouled shifts with those brands.
Please use one of the 3 brands we suggest for the designed shifting experience with Praxis Works LevaTime chain rings.
YES! We have a version that is compatible with Specialized road "OSBB" frames—both Alloy AND Carbon shell. The BB ships with custom sleeves to install on the full Carbon OSBB shell frames. If your frame is an Alloy OSBB shell, then you simply don't use the included sleeves. Specialized MTB frames are standard PF30 so you would order the 73MM MTB PF30 Conversion.
Our Conversion BB is designed exclusively for the Shimano Hollowtech II spindle/cranks only. We are currently working on GXP and Campy specific versions for future release. Hang tight as more ConvBBs are coming.
No other brand cranks can be used with our Conversion BB. Only Shimano Hollowtech II.
No—we do not make a Conversion BB for BB386EVO or BBRight.
Basically any traditional 5 arm crank that is 110 compact or 130 standard BCD for road bikes. On the mountain side, the rings are made for a 4 arm 104/64 BCD. There are a few cranks our there that have custom mounting or BCD the rings do not mount on. For example: The Zipp Vuma Quad, Campy Cranks, the new SRAM Red Exogram, and then the Extralite QRC-2. Our rings are NOT made for these cranks as they are custom BCD.
Our rings do not mount to Campy's custom BCD as they have their own custom bolt circle/mount. We initially had plans to launch a ring set for Campy cranks/BCD, but will not be. However, our chainrings are 11sp compatible, so you can use our rings with a Campy 11sp drivetrain if the rings are mounted on a traditional 5-arm mount 110 or 130BCD crank. For example, you could use cranks by Specialized, LOOK, Cannondale, FSA, ROTOR, Quarq, etc. Many people use these cranks with our rings, with the rest of the drivetrain Campy 10 or 11.
Yes, they mount and work perfectly by using regular CR bolts. However, Shimano made the 6700/6750 and 7900 crank very integrated into their chainrings. Praxis rings mount and work perfectly, but they don't have the finished/integrated look as the stock Ultegra/Dura Ace rings do. For the Dura Ace Compact 7950 we do offer Integrated ring set kits for only this crank.
No, The brand new 2012 Sram Red crank has a new custom mounting so that only their Red rings mount to it. Praxis road rings mount to all industry standard 5arm 130BCD or 110BCD.