Swapping cranks on SRAM Force AXS eTAP I'm looking to swap out shorter cranks on my bike. It's this bike, but of note has a SRAM PF30 bottom bracket and SRAM Force eTap AXS, 48/35 chainset.
I'm trying to work out if these will be compatible. They look the same, and I can see DUB on my bike, but I'm really struggling to find a definitive source that says they are compatible. Can anyone answer or at least say what needs to be matched?
My second question is does anyone know how involved switching these will be? All LBSs are booked for months so was planning to attempt myself but is still advisable for a relative novice? As far as I can see I'll need a torque wrench up to 50nm(I've already got a smaller one) but again, I'm struggling to find material on how to go about this from start to finish. Any advice would be appreciated - the best I could do was how to install a spider power meter which does involve taking the crank off the spider.
Thanks in advance!
They look to be compatible. The website says they'll work with any road DUB BB, which you have. Changing the spider shouldn't be too difficult as long as you follow the video. You can also find more info on the SRAM Service website. For example, here's the spider and chainring installation guide.
Here's the DUB BB compatibility manual: DUB™
MTB and Road
Cranksets and Bottom Brackets
As for the big 50Nm bolt, either take it to a bike shop or even a car garage and ask to borrow their torque wrench (&quot;It's just one bolt, can't I just use it for a quick second!&quot;), or just guesstimate the torque, perhaps with the help of a little math to find the amount of force needed with your own wrench. As long as it's on pretty dang tight, it shouldn't fall off.