The latest prototype with improvements in folding and weight reduction.  Includes Sturmey Archer internal drum brakes on all 3 wheels, as well as 8 Speed internal rear hub.  A 2-speed Patterson internal front crank extends the gear range and makes for 16 speeds. Optimized and simplified shock position options.

The frame has been lightened with truss like diamond cut outs, which lower weight while optimizing the strength to weight of the frame. The front suspension arms can pin to positions of varying ride height, lower for improved stability in cornering, or higher for better visibility in urban environments.  SOLD AS IS, this prototype has had some use for evaluation and will shows signs and wear from regular use.  Please contact us with any questions or requests for further details.

Note: The chain length varies with respect to the rider and crank position on the boom, and is best fit by a bike smith or those that are familiar with frame adjustments and adding/removing chain links.  This particular prototype was fit to a 5ft 7in rider and has a 165mm crank length.  Any change requests should be confirmed prior to an order.  This ensures the buyer is aware of any significant lead-time that may delay the shipment of the trike due to changes being implemented.

Gear Inch Range

Low------High front gear

29.1     46.7

37.2     59.8

42.1     67.7

47.8     76.8

54.0     86.8

61.2     98.3

69.3     111.3

88.7     142.6