2017 TRIUMPH STREET TRIPLE RS
FIRST TEST
P80
engine, Triumph has taken its
675 Daytona supersport motor
and bored and stroked it to get
78 x 53.4mm measurements to
move it to that 765cc capacity,
thus keeping the Street range
firmly in the middleweight cat-
egory. It's seen the Street Triple
RS (replacing the RX model),
gain 16 percent in overall power
and 13 percent in overall torque—
it has more torque at 4000 rpm
than the RX did at peak revs.
"With the RS, we focused
heavily on tuning the engine,"
says Triumph's Head of Engi-
neering, Stuart Wood. "We've
taken it further. We've given it
more power and more torque
everywhere, but we've focused
on the top end as well. In all
we've changed 80 parts in this
engine."
The engine houses a new
crank, con-rods, pistons, bal-
ancer shaft, nikasil aluminum
bores (that replace the iron bore
liners of the old 675cc engine),
cylinder head and camshafts
(the S and the RS run the same
cams, the R gets different ones),
as well as a new intake and new
three-into-one exhaust system
that allows the triple to sing
like never before. There's also
a new slip and assist clutch, a
factory fitted quickshifter on this
RS model and shorter first and
