
Hi
I currently run Shimano 105 7100 12 speed di2 with chainrings sized 50/34.
I bought the pictured Dura ace crank and want to fit it on my current set up as it has a power meter. The issue is the dura ace chainrings are 52/36.
My question to you experts is am I better to swap the 105 chainrings onto the dura ace crank or to fit the larger chainrings and readjust the front derailier.
Thanks in advance.
by TheBeckerSuite
2 Comments
Buy a new chain and enjoy those new cranks! You’ll need two or three more links.
The 105 chainrings will fit, but I wouldn’t do it.
52/36 is a great front ratio, enjoy!