what clearance do you have, and what's the limit?
how close is too close between your cranks and chainstay?
- Thread starter Sandwich
- Start date
I got about a meter or so of clearance, Clarence.
there's no hard and fast rule for this. but you'll need enough space to accommodate frame / crank flex under load. don't forget this can/will also impact your chain alignment.
If you can flex the frame/crank enough to rub when you put the power down then it's too close.
Fucking sniped by the Kranky One 
Are you concerned about too narrow QRotofactor? I wouldn't get closer than 1/4-1/6". 1/8" def too little for my comfort.
you're taking this whole american thing too far. English measurements...
Offer some alternatives, smartypants.
I just posted a stem on eBay, 50mm x 31.8.
Fucking OCD alert!
Fucking OCD alert!
I’ve run just a mm or two on each side, put some tape against the stays to see if I was brushing against it. Modern cranks and bbs are pretty stiff. Had to run my old 170-axle Turbines when I was warranting my 190-axle Next SLs on my fat bike and that was TIGHT. Pretty sure I couldn’t get away with this with an old square taper BB and sugino cranks.
"fucking commie pinko" they don't use that imperial shit either....... The metric will lead you to the peoples paradise comrade.
but yes, I was trying to see if the QRanks will fit. Doesn't look like they will, too narrow. XTR or SLX for me...
I have old spare SLX that I don't plan to sell but you can try it for clearance.
do you know what year? I'm certain the SLX will fit. Q factor is 176 and shimano does things like shaping their crank arms for clearance. Rotor's are straight metal bars. XTR trail will fit, which is 168. XX1 gave issue, but allegedly this frame was changed for 2015 (my year) and XX1s came in both 158 and 168, so there's a chance it was simply the narrow q-factor cranks that gave issue.
Either way, the rotors MIGHT contact at both the yoke and the pedal part of the chainstay- they simply aren't wide enough. It's too close to call with paper, so I've got to go the shimano route unless rotor wants to send me a demo crank to try out!
Either way, the rotors MIGHT contact at both the yoke and the pedal part of the chainstay- they simply aren't wide enough. It's too close to call with paper, so I've got to go the shimano route unless rotor wants to send me a demo crank to try out!
no, it was reference to the fact that engineers and machinists hate unending decimals such as 1/6
I bought them in January 2012.
4 and a quarter millimeters, give or take a fistfull of microns.