Yamaha R1 2009 vs. Yamaha R7 2021

The Yamaha R1 model year 2009 and the Yamaha R7 model year 2021 are both supersport motorcycles manufactured by Yamaha. While they share some similarities, they also have significant differences in terms of technical specifications and features.

Starting with the engine and drive train, both bikes have an inline engine configuration. However, the Yamaha R1 2009 has a larger bore of 78 mm compared to the Yamaha R7 2021's 80 mm. The stroke of the R1 is 52.2 mm, while the R7 has a stroke of 68.6 mm. In terms of power, the R1 boasts a higher engine power of 182 HP, while the R7 has a more modest 73.4 HP. The R1 also has a higher torque of 115.5 Nm compared to the R7's 67 Nm. The compression ratio of the R1 is 12.7, while the R7 has a compression ratio of 11.5. The R1 has four cylinders, while the R7 has two. Both bikes feature DOHC valves and have different displacements, with the R1 at 998 ccm and the R7 at 689 ccm.

Yamaha R1 2009

Moving on to the suspension, the Yamaha R1 2009 has a telescopic fork for the front suspension, while the R7 2021 features an upside-down telescopic fork. Both bikes have swing arm rear suspensions. The R1 has an aluminum frame, while the R7 has a steel frame. Both bikes have double disk brakes at the front and 17-inch tire diameters for both the front and rear.

In terms of dimensions and weights, the Yamaha R1 2009 has a wheelbase of 1415 mm, while the R7 2021 has a slightly shorter wheelbase of 1395 mm. The fuel tank capacity of the R1 is 18 liters, while the R7 has a smaller capacity of 13 liters.

Now, let's discuss the strengths and weaknesses of each bike. The Yamaha R1 2009 is praised for its sophisticated sound, good power delivery, easy handling, hydraulic spring preload, and high level of workmanship. However, it has been noted that the seating position may not be optimal and it may be somewhat difficult to corner over long distances.

Yamaha R7 2021

On the other hand, the Yamaha R7 2021 is commended for its high-torque CP2 engine, sporty riding position, suspension set-up, standard tires, and being a good entry-level trackday bike. However, one weakness mentioned is that a quickshifter as standard would have been a nice addition.

In conclusion, while the Yamaha R1 2009 and the Yamaha R7 2021 are both supersport motorcycles from Yamaha, they have significant differences in terms of technical specifications and features. The R1 boasts more power and torque, a larger displacement, and a higher compression ratio. The R7, on the other hand, has a more modest engine performance but is praised for its sporty riding position and trackday capabilities.