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• #2
If you have the ring you want to run, put it on your current crank and insert it until the teeth begin to foul the chainstay, and look at the gap at the bearing.
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• #3
Measure and draw a triangle. Height is from BB to chainring, base is axis to end of chainring. Now add 2,5mm to the height, base should grow exponentially if you keep the same angles. Now calculate how much a bigger chainring measures. Or just trial and error, 46t is big enough for anyone but racers anyways.
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• #4
Thanks both
I do race, and I want to try and sit more in the middle of the cassette to preserve my drivetrain, hence going to a bigger ring
Of course moving the ring outboard a touch makes for less ideal chain line but I believe that's mostly an issue in the easiest few cogs where I don't spend much time (no flex; it's just that I ride in the Netherlands predominantly) -
• #5
You can dismount the cranks, add a 2,5mm spacer to the drive side and see where it gets you. Better yet, you can order a chainring, try that and if it doesn't work return it
Hey folks. I’m currently running a 46t chainring on my gravel/all purpose bike (Santa Cruz Stigmata v3) with a regular width crankset. Official clearance is 42t; it’s tight but so far not been an issue.
I’d like to go bigger since I sold my road bike and ride this bike a lot on flat roads with skinnier tires. The SRAM wide cranks add 2.5mm on either side; anyone here know how many extra teeth that buys me, chainring wise? I prefer not to try hacks with chainring bolt spacers or trying to space out my current drive side crank and spider.
Cheers!