Innovation is alive and well at e*thirteen. At this year’s Sea Otter Classic, e*thirteen showed off a new line of carbon fibre cranks, a radical EXP extended-range cassette and even some clever new chain guides.
Most buzzworthy was the new EXP cassette, which fits on the same XD driver body as a SRAM XX1 cluster but offers an even greater 9-42t gear ratio spread. Key to the expanded range is the novel cassette configuration. At least on the prototype shown, e*thirteen machines the largest three cogs from a single block of aluminium, which is then affixed to the driver body with a cylinder-like lockring.
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The new e*thirteen EXP cassette will be made in both 10-speed and 11-speed configurations, both with a massive 9-42t range
From there, the additional six (or seven) steel cogs are attached directly to the machined aluminium spider via a rather clever twist-and-lock interface – not unlike how a lens is attached to an SLR-style camera.
The new EXP cassette is still in prototype form and there are lots of answered questions, such as how well it’ll shift, how much it weighs, and how well it’ll wear. The idea of a truly wide-range cassette option for existing 10-speed drivetrains is very enticing, though, and we certainly wouldn’t mind another option for 1x11 users, either. Stay tuned.
You can read more at BikeRadar.com
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