As global environmental concerns becoming more critical
than ever, the demands for clean exhaust gas and fuel economy
are growing steadily even in the world of motorcycles. Also,
to enhancement the quality of riding, voices requesting a
decrease in noise are increasing. Unfortunately, those demands
are factors that require compromising of the driving performance.
What Honda engineers chose was the development of a transmission
that transmits the engine power more efficiently to the road
via the tire.
The CVT, which is recently drawing more attention in the world
of automobiles, is a system that continuously varies the reduction
ratio by changing the pulley ratio in the input side and in
the output side. Compared to the conventional transmission
that uses a fixed gear ratio, the CVT allows easy presetting
of the shifting characteristics to best-match the characteristics
of the engine used in the vehicle including factors such as
the power output, emissions, etc., thereby allowing use of
the cleanest zone and the most powerful zone when running.
While a metal belt is usually used in automotive transmission
systems, in Honda S Matic, a rubber belt is applied because
of its potential to reduce weight at a low cost.
emission level in D mode