I currently ride a 2015 Blue Triad SL, but am contemplating moving to a Canyon (Shimano Pressfit BB72). The current ride has a BB30 bottom bracket, and my crankset has a Power2Max power meter, which I’d prefer to keep using. Is it possible to put this crank on a Canyon frame with some type of adapter? Thanks in advance!
What is the length of your crank’s axle?
BB72 is just a SHIMANO Part Number … the dimension of the SM-BB-72 is 41 x 86,5 mm for 24mm axle … PF30 is a dimension, the diameter of your current axle … but there are different lengths for different BB …
I currently ride a 2015 Blue Triad SL, but am contemplating moving to a Canyon (Shimano Pressfit BB72). The current ride has a BB30 bottom bracket, and my crankset has a Power2Max power meter, which I’d prefer to keep using. Is it possible to put this crank on a Canyon frame with some type of adapter? Thanks in advance!I did exactly that on my Speedmax. My crank was a Rotor 3D with Powermax, and all I had to do was take out the Shimano crank that came on the bike and install the Rotor crank. No other work required. (Note I am planning to upgrade the BB soon with a Kogel ceramic bottom bracket.) See Post #222 of 225
What is the length of your crank’s axle?
The crankset that is currently on my 2015 Triad SL is a Rotor 3D+ w/170mm crank arms w/Praxis chainrings, but I know that isn’t of any relevance for the bottom bracket. If I’m reading the Rotor website it looks like the axle length is 68MM - from this chart. Does this look correct? If so, how compatible would it be with a Canyon? Thanks again!
What is the length of your crank’s axle?
The crankset that is currently on my 2015 Triad SL is a Rotor 3D+ w/170mm crank arms w/Praxis chainrings, but I know that isn’t of any relevance for the bottom bracket. If I’m reading the Rotor website it looks like the axle length is 68MM - from this chart. Does this look correct? If so, how compatible would it be with a Canyon? Thanks again!To add to my previous post - my rotor 3D crank was originally on a bike with Cervelo P2 with BSA thread, then later on a CAAD12 with BB30. It’s now on my Speedmax with BB72 part number (which means it’s a shimano 105 with a BB86-24 bottom bracket standard. Your 3D+ crank will be 30mm diameter so it won’t fit without replacing the bottom bracket to one that has a 30mm bearing inner diameter. The standard in the Canyon will be 24mm.
OK - thanks for the info!
That chart does not say that your crank’s axle length is 68mm.
Can you measure it?
If you want to keep the BB30, you’ll have to measure the axle length (needs to be at least 104 mm long). My dad just put a Quarq D-Zero BB30 into his new speedmax. Using it without the preload adjustment that are seen on the Sram cranks and just bought the corresponding bearings needed to do so (https://wheelsmfg.com/…-bottom-bracket.html or https://www.competitivecyclist.com/…-4130-bottom-bracket). I have a Power2Max with a Force 22 BB30 crankset in my Felt IA that would also fit into the Canyon if I removed the preload adjustment.
That chart does not say that your crank’s axle length is 68mm.
Can you measure it?the 68mm is the width of the frame and the bearings of the BB30 bottom bracket sit outside the frame. The speedmax will be 86mm with the bearings inside the frame.
I reached out to Power2Max and they said that the bottom bracket below would do the trick for my current power meter to fit on a Canyon. So, anyone who has a current BB30 bottom bracket could use this to transfer over a crank or power meter onto a BB386 bike.
https://power2max.cc/collections/bottom-bracket/products/rotor-bb-pf4130
Yes that will work, but don’t expect a long life as the bearings are very very small.
This is the reason that this type of conversion is not very commonly addressed by manufacturers of BB adaptors.
It is also the reason that SRAM recently switched to the Dub standard for their new cranks.
By making the crank axle slightly smaller than their traditional 30mm it allowed them to use one size crank axle for all BB standards as they could now fit larger bearings when using BB shells designed for the very successful and reliable Giant/Shimano developed pressfit standard.
I was curious if you went this route and if so, how has it worked?
Me too! I was going to post pretty much the same question as the op. Thinking of buying a Speedmax CF but I have a cranket/pm with a 30mm spindle that I would rather not have to sell and replace. As mentioned I had heard that the smaller bearings in the conversion kits are not optimal. When people are spending so much money on ceramic bearings it seems a shame to buy worse ones…Not sure what the best option is for the Speedmax
Did you end up buying a Speedmax? And if so did you keep your crankset and power meter with the 30mm spindle or switch to something with a 24mm spindle? I haven’t had much luck running a 30mm spindle in a BB86 frame. I think it’s time for me to do things the way they’re meant to be done and just switch cranksets and learn new power numbers.