Yamaha R1 has three versions, namely R1S low-end model, R1 standard model, and R1M track version. Among these three versions, R1S is the cheapest version with reduced performance. S does not refer to SPORT (sports), but to STREET (street).
The biggest difference between this car and the R1 and R1M is the engine. The titanium alloy connecting rods of R1 and R1M were changed to steel, then the oil pan hood was also changed from magnesium alloy to aluminum alloy, the titanium alloy exhaust manifold was changed to stainless steel, and then the magnesium alloy wheels on R1 and R1M Replaced with aluminum alloy material of the same specifications.
Titanium alloys and magnesium alloys are both lightweight, strong, strong but expensive metals. Steel and aluminum alloys, while stainless steel are bulk materials with relatively low prices. This setting also explains the strength of R1S. It is positioned as a low-cost entry-level liter sports car.
Main advantages:
The R1 is the standard version, except that it lacks a full carbon fiber fairing and electronic active suspension than the R1M, there is not much difference. However, there are different versions in terms of horsepower. The American version has a 10% speed limit, while the European version has no speed limit. The local version in Japan has more severe speed limits due to regulations. In the absence of a speed limit, the R1 The rear wheel horsepower reaches 183 horsepower, which is almost the same as BMW's S1000RR, and the engine output data released by the manufacturer is 200 horses.