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Yeah nah, one less fastener, but mainly, Shimano put the arms where the load is; big gaps at tdc and bdc, and even figured one opposing pair should be beefier than the other. It's optimised AF compared to any five arm spider.
Shimano's cranks balance lateral rigidity of the big ring against weight in the design criteria, everyone knows the best front shifting is on a Shimano crank...
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Like the 4 arm spider will make a difference to a weekend warrior.
Folks who say this sort of thing don't get it, I reckon.
Five is arbitrary. Four is optimised. Therefore four looks better. If it works better, it looks better. Include all the current optimisations and you have a 6kg beast that's distilled joy to ride.
Witness the fitness.
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They work great for a single built post and are fairly light, but I'm afraid they look like arse, and not to be a snob, but unless you're making a point, Kalloy probably doesn't belong on the same bike as Record kit...
Not sure if any alloy post has appreciable flex, but if they can, then the tall clamp design eats into flex length too
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I'd say one of the main traits of these 2K bikes would be alloy frames and carbon (rear) forks, or lugged carbon frames. Monocoque frames would be pushing the genre except if ex pro frame.
This bad boy was identical to the T-Mobile frameset, just with different paint... Came out in Oz in '06 with full 7800 and Ksyrium ES, was 7.1kg and cost $8.5k. You could get the frameset in Europe with pretty much the same paintjob but with T-Mobile on the top tube instead of this poxy Arial font junk, that was €2.5k...
This one is a bit on the large side for me, but I picked it up a few years ago for $600; was just gonna strip and flip it, but it's such a weapon. These days it's Di2 only, with a full internal loom I DIYed, and 9000 except for the nicer 9100 levers and way cooler 7400 rear brake, comes in at 6.1kg with the Caden tubs. Oh yeah, I sold the 7800 off it for $560, lol.
Been looking for one in my size pretty much since I got this, and late last year found one out in the sticks for $1k, in incredible nick. Reckon I could get $800 for that group - no crank scuffs or RD road rash! Although now I've gotta do this Di2 hack job all over again.
Looking forward to it though; gonna be a tad lighter and a whole lot sexier in my size.
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Bah, they had curved TVs when I was a kid :p