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It's 68. Thanks, they're definitely a more affordable option than the middleburns. Shape is decent. I just find it difficult to get particularly enthused about 4 ring set ups. Which would rule out pretty much all modern cranks. Not a deal breaker though. Was thinking more at least 105/slx level for this build hopefully.
chickenbones
What's the shell width? If it's 68mm, you only have to worry about chainring clearance to the chainstays. Shimano FC-T4060 fits 68mm and 73mm shells, bin the inner ring and you have a choice of 48/36 and 44/32, 3 crank lengths and two colours, fits old fashioned 104mm/4-bolt rings so you'll be able to get aftermarket replacements until the heat death of the universe, 50mm chainline on the middle ring £59 from Spa