Interbike

If you're looking to go beyond the standard fitness tracker, there are a growing number of specialist devices out there for quantifying every aspect of your existence. Skulpt just launched version 2 of its muscle tone and fat monitor at the Interbike expo, and New Atlas was there to take a look.

Japanese bicycle manufacturer Tretta is looking at selling its 2-wheel-drive bicycles in North America.

Dux Helm combines bike helmet and sunglasses.

StageONE power meter comes pre-attached to a crank arm and uses a strain gauge and an accelerometer to measure a rider's power output on a bike.

FOOTbrake shoes are portable folding sandals and shoes designed for cyclists and skiers.

The CyFy WristView bracelet gives you a bicycle rear-view mirror at the turn of a wrist.

Flashlight manufacturer Fenix is hitting the bike light market with a pair of compact, powerful and affordable systems.

The Athos built by Contes Engineering is an extreme quad-cycle that that aims to provide a blend of BMX, motocross and downhill biking.

The SRAM pART PROJECT is selling sculptures made from bicycle components, in an online auction.

The PowerWheel is a resistance training wheel for road racing cyclists.

The Tortola RoundTail bicycle replaces the frame's traditional rear triangle with two shock-absorbing joined rings.

A former road racing cyclist has invented a bicycle video system that lets cyclists see behind them, and that automatically records any accidents they're involved in.