Masterdrive(TM) 32CC Front Mount HelmFeatures: Available in two different displacement sizes: 32 cc (1.95 cu.in) and 40 cc (2.44 cu.in) Front Mount and Tilt Mount versions The dual station installation version is also available (please refer to the MD2 Kit) Built-in relief valve 3/4" tapered shaft Corrosion-resistant painted body Waterproof Tilt Mount version is suitable for use with X66-40613 M tilt mechanism Specifications: Mounting: Front Mount Application: Single Cylinder Number of Stations: 1 Maximum Wheel Diameter: 406 mm - 16" Displacement/Revolution: 32cc - 1.95 cu. in. This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.