Cytronex is a lightweight electric bike system fitted to existing bicycles by the British company Modern Times Ltd. The system is designed and assembled at the company's base in Winchester, England.

The bicycle's 36V battery looks like a water bottle, the brushless hub motor is a similar size to a hub dynamo and most of the cables are concealed. Bicycle lights powered directly by a switching regulator in the battery are also an intrinsic part of the system.

A Cytronex powered Cannondale Super Six carbon racing bike was featured during episode 16 of Channel 5's The Gadget Show

The Gadget Show

The Gadget Show is a British television series focusing on technology and is broadcast on Channel 5. Originally a thirty minute show, it was extended to forty-five minutes, then later to fifty five minutes. Repeats have also aired on the digital channels 5*, Dave and Channel 5's Internet on-demand...

 in November 2009, on which presenter Ortis Deley

Ortis Deley

Ortis Deley is a British television presenter, radio DJ and actor of Ghanaian/Nigerian descent. He went to Ernest Bevin College in Tooting Bec, London. He is currently one of the presenters of The Gadget Show and presenter of Choice FM on Sunday mornings....

 raced professional cyclist Russell Downing

Russell Downing

Russell Downing is an English cycling road-racer for UCI ProTour team . He was the British national road race champion in 2005. He is the younger brother of fellow cyclist Dean Downing...

 at Holme Moss

Holme Moss

Holme Moss is a moor in the south Pennines of England, on the border between the High Peak District of Derbyshire and the West Yorkshire district of Kirklees. It is just inside the boundary of the Peak District National Park....

 on the route of the Tour of Britain

Tour of Britain

The Tour of Britain is a cycle race, conducted over several stages, in which participants race from place to place across parts of Great Britain....

in the Penines. The bicycle used during the television feature weighs 12.9Kg.