Motor
At the top, the R1's intake ports
have been shortened and the
intake volume reduced by 12
percent. A new 10-hole injector
replaces the 12-hole unit used
on the 2019 R1 with the spray
now angled much more steeply
towards the intake valve for better
atomization.
The cylinder head's exhaust
port gets larger cooling passages,
sleeker rocker arms for the cams
that are slighter lower in profile
than in 2019 and the cams have
new a new profile—although lift
and overlap remain unchanged.
At the bottom, the oil pump ro-
tor width has been reduced 2mm
to 20mm, the big-end oil passage
2020 YAMAHA YZF -R1 & YZF -R1M
R I D E R E V I E W
P90
The dash is the same as 2019.
size has been reduced 0.5mm,
and plain bearing journal width
increased by 3mm.
Chassis
This is the area the R1 and
R1M differ. They both share the
same Yamaha Deltabox alumi-
num frame, aluminum fuel tank,
magnesium subframe and wheels
(new for the base model), but the
base model comes with conven-
tionally adjustable KYB forks and
shock compared to the latest
generation electric Ohlins on the
R1M.
The base model R1 gets
slightly softer fork springs than
previous (18.12 Nm to 18 Nm), a
new piston and shim stack layout
closer to the base of the fork and
new damping settings, while the
shock gets new damping settings
and a touch more preload of
0.5mm for the base setting.
The R1M gets the new Ohlins
Slight styling
updates
including a
reworked fairing
differentiate the
2020 R1 from its
predecessor.
The R1M gets
the new Ohlins
NPX pressurized
chamber fork.
Brake
performance
leaves a little
to be desired,
according to
Moreda.
