Developed over many years the Hope crank has been designed using the latest FEA (Finite Element Analysis) tools and extensive multi discipline field testing. The cranks feature a unique expanding spline axle/arm interface (pat pending).
Previously, cranks using splines often used a taper to ensure a snug fit. These cranks worked fine the first time they were fitted to the axle, but once they’d been taken off and on a few times, the spline became worn, so they’d suffer from the inevitable movement and annoying creak. Hope felt there must be a better way. After many years of testing they think they’ve found it in the form of an expanding 30 mm spline. The cranks are pulled onto a conventional spline, then a tapered plug is fitted inside the axle which can be tightened up each time the arm is refitted – giving a perfect fit every time.
Added to this Hope CNC machines the arms from forgings which gives them immense stiffness and strength. The arms also have a splined mounting for spiders and direct mount sprockets giving excellent versatility (not included).
The cranks are compatible with the majority of frames via Hopes expanded range of bottom brackets.
Suitable for BB widths of 100 mm and 120 mm.
The base version is delivered without spider, chainring and bottom bracket.
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|Weight:||approx. 641 gram (arms, axle and 34t spiderless ring)|
|Axle profile:||172x30 mm axle|
192x30 mm axle
|BB shell width:||100 mm or 120 mm housing|
|Included in delivery:||Crankarms, axle, chainring-bolts, tools|