* http://mashable.com/2013/09/04/specialized-turbo-review/
* http://reviews.cnet.com/search-results/specialized-turbo-ele...
A little tinkering with the crankset (which, unlike the cassette, looks accessible and nonproprietary) and removal of any speed limiter that might be in place could make for a 50lb machine that easily tops 30mph at a comfortable cadence.