Standard exhausts are difficult to improve on in terms of power and torque, but they are very large and impede ground clearance.

An F3 racing kit was produced for a few years which included ignition boxes, carbs and exhaust, helping increase maximum revs, power and torque.

Lighting arrangements were also different, to comply with UK type approval regulations, particularly the indicators were mounted on stalks rather than faired into the bodywork.

The 3XV came out in 8 variants with different carbs, ignitions, wet & dry clutches, three versions of power valves, cylinders and each depicted by different colour number boards on the side panels and front fairing.

The variants closely followed the configuration of motor of the racing TZ250 of the time, sharing the same engine casings, frames and in some models the cylinders, carbs and power valves.