by Daniel McAfee, Solutions Engineer, CATAGEN Green Emissions Testing

Export emissions issues rarely begin with a failed test. More often, they originate in small durability assumptions made early in development, assumptions that seem reasonable, pass certification, and only become visible later when platforms operate across markets, fuels and climates. 

What we see across global motorcycle programmes is rarely a dramatic failure. It is gradual margin erosion that was never fully isolated. Recognising that pattern early materially reduces programme risk. 

In early development, the focus is understandably on achieving a certification pass. Durability is often represented through limited ageing programmes, correction factors, or engine-based ageing approaches carried over from previous platforms.

These methods are practical, but they can unintentionally hide variability, blend degradation mechanisms and smooth over non-linear ageing behaviour. A system may pass once, but the more important question is whether it will pass repeatedly, across production spread, fuel variation, duty cycles and scrutiny.

Export Programmes

Export programmes amplify this risk. Duty cycles differ, fuel composition varies, ambient conditions change, and many markets reference Euro-derived durability expectations even where enforcement intensity differs.  
 
On high-volume commuter motorcycles, exposure multiplies quickly. When tens of thousands of units operate daily in dense urban duty cycles, where thermal cycling is aggressive and maintenance quality varies, small durability margins are revealed faster than expected. High volume does not create durability issues; it exposes them. 
 

Dual-Fuel Platforms

Dual-fuel platforms add another layer. CNG and petrol operation differ in exhaust composition, thermal behaviour and catalyst exposure patterns. Frequent switching between fuels in short urban trips introduces overlapping thermal and chemical ageing effects that do not always follow linear projections. Traditional engine-based ageing blends these effects together: it confirms the system functions after ageing, but it does not always quantify how much margin remains under each fuel condition.

Speak to CATAGEN about how OMEGA can help you quantify durability margin early, reduce export risk and protect long-term compliance confidence – https://catagen.com/contact