RIDE REVIEW I 2024 TRIUMPH STREET TRIPLE 765 R AND RS
P110
128 hp at 12,000 rpm, with
the base model R producing a
claimed 118 hp at 11,500 rpm.
Both bikes have a claimed 59 lb-
ft of torque, taken at 9500 rpm.
"We wanted to improve
combustion, that's really impor
-
tant, and we wanted to improve
the intake and exhaust-gas
flow," says Triumph's Head of
Engineering, Stuart Wood. "We
wanted to increase compres-
sion ratio and allow higher
combustion pressures, so when
you put those things together,
that's when you get the increase
in performance.
"The absolute core of the en
-
gine is the combustion chamber
in the cylinder head and the pis-
ton crown. Both of those areas
are now fully machined and are
now exactly the same as the
Moto2 engine. That allows us to
have very precise control and to
take ourselves closer to the limit
of compression ratio that we'd
like to achieve.
"We've gone up to 13.25:1 com
-
pression ratio, which is just a frac-
tion less than the Moto2 engine.
We've machined in bigger valve
cut-outs in the cylinder head,
we've got more valve lift, and
we've gone for a stronger conrod,
all to take the loads we are now
producing. This engine really is
a case of our racing department
helping the production side."
Wood's team coupled the
combustion-chamber and piston-
crown changes with 20mm
shorter intake trumpets, although
the inlet ports have been ma
-
chined compared to the Moto2's
more exacting hand-polishing.
"In addition to the piston and
conrods taking more load, we've
got wider, stronger, crank prima-
ry gears and clutch gear to take
the extra power, and we've also
improved the gearbox with both
the R and RS getting the up-and-
down quickshifter," Wood says.
"The gearbox is much stronger,
and we've got new gear ratios in
every gear. The first-gear ratio
is slightly taller, but second to
sixth gear is shorter for faster
acceleration.
"When you take all of those
mechanical changes into
account, add the higher com
-
The 765 R (like the
RS) can get spec'd
right up for long-
distance travel with
a huge range of
accessories.
