This doesn't have 650c wheels, but might be suitable for this thread.
Dawes Espoir 2010 Kid's Bike (26 Inch Wheel)
Blurb:
The Dawes Espoir 2010 Kid's Bike (26 Inch Wheel) has been carefully designed to be a perfect junior road bike. With its proportioned cranks and handlebars, a mudguard compatible frame and a specification specifically designed to enable the rider to convert it to a cyclo-cross bike the Espoir really is an ideal starter bike for the little racer.
Frame: Alloy Junior Road Frame Fork: Steel Road Fork Front Derailleur: Shimano Rear Derailleur: Shimano Shifters: Shimano STI Front Brake: Alloy cantilever brake Rear Brake: Alloy cantilever brake Handlebars: Narrow Junior Road Bar Rims: Elan Alloy Wheels
This doesn't have 650c wheels, but might be suitable for this thread.
Dawes Espoir 2010 Kid's Bike (26 Inch Wheel)

Blurb:
The Dawes Espoir 2010 Kid's Bike (26 Inch Wheel) has been carefully designed to be a perfect junior road bike. With its proportioned cranks and handlebars, a mudguard compatible frame and a specification specifically designed to enable the rider to convert it to a cyclo-cross bike the Espoir really is an ideal starter bike for the little racer.
Frame: Alloy Junior Road Frame Fork: Steel Road Fork Front Derailleur: Shimano Rear Derailleur: Shimano Shifters: Shimano STI Front Brake: Alloy cantilever brake Rear Brake: Alloy cantilever brake Handlebars: Narrow Junior Road Bar Rims: Elan Alloy Wheels