I have Ultegra cranks with 46-38-28 chainrings. Since you are thinking of going to a smaller "big" ring, it's a much less expensive choice to buy one chainring (or even two) than to buy a whole new crank.
One note of caution: Shimano brifters work best if the chainrings are ramped and pinned. That said, I've had non ramped/pinned chainrings on the Ultegra with brifers for over 9 years, and tens of thousands of miles, and using the combination quickly became second nature.
I probably would have used a Sugino crank had I known about the brand back then. I'm not sure there's much of a weight difference if comparing apples to apples: double to double, triple to triple, not including bottom bracket in comparison.
Joan
On Tuesday, January 22, 2013 3:14:02 PM UTC-8, Michael wrote:
What constitutes an upgrade to you?
Lighter? You can look that up on the web.
Stronger? You won't break either crank.
Prettier? That's for you to decide.
More functional? As noted by others, if the Sugino fits the chainrings you want and the Ultegra doesn't, that sounds possibly like an upgrade.
Faster? Neither
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Don't laugh. I don't know much about components. Was thinking about going Sugino when I start replacing components on my bike and was wondering this.
What constitutes an upgrade to you?
Lighter? You can look that up on the web.
Stronger? You won't break either crank.
Prettier? That's for you to decide.
More functional? As noted by others, if the Sugino fits the chainrings you want and the Ultegra doesn't, that sounds possibly like an upgrade.
Faster? Neither
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