Second this. That rear triangle is very wide and definitely will not clear standard Q factor crank width. I am running the XT-8120 wide cranks that have a 178mm Q factor and my foot still contacts the chain stay at times.
I’ve got the wide Q factor cranks on my 120 and have to run spacers on both sides. Trying standard cranks on the 140 and a boost (3 mm offset) 30 tooth chainring will NOT work. Ordered a Wolftooth 0 mm offset chainring to mount next week.
This is what I'm doing for my SB140 build too. Hopefully it works.
I’m sure the chain line will be fine with the 0mm offset, but not sure how well your feet will be clearing the chain stays if it’s anything like the 120 rear triangle.
But yet posts in this thread a few pages back said standard cranks with a 30T round will fit. One even said Yeti confirmed this.
Crank clearance is about 8-10mm on both sides from the chain stays, so I think I'll be ok. Chainring coming today, so maybe a test ride on Wednesday.
Not on my 140. Chainring is 1 mm from chain stay ring pocket and the OneUp chain guide rubs with zero spacers installed. Maybe Shimano/Race Face/etc are different from SRAM Eagle XX1?
is this with standard boost cranks so ~168 q factor? Sram ”mtb wide” is 174 so not a huge difference.
Confirmed. SB120 has Sram MTB Wide cranks and the SB140 has Sram standard boost cranks.
SB140 with standard boost XX1 crank and 0 mm offset 30T Wolf Tooth chain ring now clears the chain stay cutout area.
Awesome. How’s your foot clearance on the chain stay ? Any issues
Residential street test had zero issues.
Just a word of warning to anyone with bigger feet - I tried the same XX1 crank with a Wolftooth 0 offset chainring as above and kept clipping my heels constantly on the rear seat stay of my 140.
Ah yes. Seat stay , not chain stay. Yeah the drive side is really wide in an area where my heel still clips it at times , even with the wide MTB cranks. Normal cranks my clear the frame , but your feet likely will not.
7 lbs xxl with shock...that is great!!
