SRAM unveil trick PinDome cassette for X0 family

XX features and impressive weight at a lower price

SRAM's new X0 'family' will include a previously unannounced surprise: the clever XG-1080 'PinDome' cassette that mimics XX's incredibly light and trick X-Dome machined construction but at a far lower pricepoint.

Like XX, the XG-1080 cassette uses a skeletonised dome-like construction but instead of being milled from a single chunk of chromoly steel (a precise but very expensive process), each cog is individually stamped in conventional fashion then pressed together with its adjacent neighbours with a varying number of short high-strength steel pins.

As a result, XG-1080 is still impressively light, with a target weight of just 235g – just 11g more than Shimano XTR, which has one fewer cog and uses lighter but faster-wearing titanium. More critically, though, each cog is supported around its full circumference, reducing flex to virtually nil for faster and more reliable shifting, and virtually eliminating the possibility of bent gears. 

Like XX, torque is transferred to the freehub body via an aluminium innermost cog and the smallest cog will remain a separate bit. Planned gear ratios include 11-32T and 11-36T. Consumers won't be able to buy an XG-1080 cassette until August but once they're available, pricing will be a lot lower than XX – US$200 compared to $350.  XG-1080's stamped cogs are expected to run more quietly, too.

Like on xx's x-dome cassette, the upcoming xg-1080 pindome cassette uses an aluminium innermost cog to transfer load to the freehub body:

James Huang

Technical Editor, US
James started as a roadie in 1990 with his high school team but switched to dirt in 1994 and has enjoyed both ever since. Anything that comes through his hands is bound to be taken apart, and those hands still sometimes smell like fork oil even though he retired from shop life in 2007. He prefers manual over automatic, fizzy over still, and the right way over the easy way.
  • Discipline: Mountain, road, cyclocross
  • Preferred Terrain: Up in the Colorado high-country where the singletrack is still single, the dirt is still brown, and the aspens are in full bloom. Also, those perfect stretches of pavement where the road snakes across the mountainside like an artist's paintbrush.
  • Beer of Choice: Mexican Coke
  • Location: Boulder, Colorado, USA

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