Series 3

The Footboard was two piece, the heel rest was fixed and the foot strap (1″ width)  slid between the two footboard halves.

The Footboard is one piece, the heel rest is adjustable through a series of holes and the foot strap (1″ width) is adjustable by sliding in a groove.

The Footboard is one piece, the heel rest and foot strap (1″ width) is adjustable through a series of bolt holes.

The 15″ handle had a new teardrop shape.

The 15″ handle had a new teardrop shape.

The 15″ handle had a new teardrop shape.

The tank is vaccum formed with a 1″ corner radius a fabricated stainless steel paddle.

The tank is vaccum formed with a 1″ corner radius a fabricated stainless steel paddle.

The tank is injection molded and has a pinned shaft, with a 2″ corner radius and a fabricated stainless steel paddle.

The dollywheels are 3″ in diameter.

The dollywheels are 3″ in diameter.

The dollywheels are 3″ in diameter.

The rails are 1.25″ x 4.5″ wood with a double bungee.

The rails are 1.05″ x 4.5″ wood with a single bungee.

The rails are 1.05″ x 4.5″ wood with a single bungee.

The Series 3 had a Kingi Timer built into the footboard

The S3 monitor has a 4″ square housing, starburst (alphanumeric) display, tacho motor and belt sensor.

The S3 monitor V2 (w/ RS232 interface) has a 4″ square housing, starburst (alphanumeric) display, tacho motor and belt sensor.

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were metal and opened out.

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were metal and opened in.

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were metal and opened in.

The Clutch is 4″in diameter and made of steel.

The Clutch is 4″in diameter and made of steel.

The Clutch is 4″in diameter and made of steel.