Control Tech Rage Crankset
The ﬁrst thing you notice about the Rage is that the chainring bolts have disappeared. In fact, they’re all round the back, with the outer bolts threading into the spider from behind.
The advantage of that setup is that there are no sleeve nuts to deal with. You also get an appearance that we’re going to describe as ‘distinctive’.
There’s no top hat bearing sleeve, though the bottom bracket does have additional rubber lip seals against the axle. The left-hand crank is secured using one big pinch bolt, which works ﬁne but looks a bit unsophisticated.
Shifting across the 44/32/22T chainrings is ﬁne, if not as slick as with some other models. There’s also no getting away from the fact that the Rage is more expensive than Shimano’s XT chainset but is a hefty 150g heavier.