WHAT IS IT? Galfer’s Tsunami 270mm, oversized,
cauliflower-style rotor kit gives you the braking power
of the Pros.
WHAT’S IT COST? $371.00 (rotor, bracket and brake
CONTACT? (800) 685-6633 or
WHAT STANDS OUT? Here’s a list of things that
stand out with the Galfer Tsunami rotor.
(1) Installation. Oversized rotors require a bracket
to move the brake caliper back the exact number of
millimeters that the larger rotor needs for clearance. The
CNC-machined bracket is easy to install and fits well.
The Galfer rotor is 270mm. Stock on our test Kawasaki
KX450F is 240mm.
( 2) Cauliflower rotor. At any point in its rotation,
a rotor only contacts a portion of the surface area of
the brake pads. As the rotor spins, the contact area
alternates its friction area across the face of the brake
pad. A scalloped rotor modulates the friction across
different parts of the pads at different times. The
cauliflower shape allows the brake to run cleaner and
cooler. The decrease in heat lessens warping.
( 3) Grooves. The Tsunami grooves are designed to let
air into the system and help further reduce heat. In our
testing, the Tsunami maintained a good feel throughout
long motos and never chirped or faded.
( 4) Brake pads. The Tsunami comes stock with a
set of full-metallic, ceramic-based brake pads. Be careful
when first installing these pads, as it takes a couple of
practice sessions to break them in. We went back and
forth between the Galfer pads and the OEM pads. Most
MXA test riders felt that the stock OEM pads offered
more grip than the Galfer brake pads but not as long a
( 5) Modulation. The Tsunami offered abundant
braking power with plenty of modulation. The OEM pads
were responsive and strong, while the Galfer pads were
not as touchy. It goes without saying that in slimy mud
sections and low-traction conditions, the rider has to
respect the Tsunami brake.
( 6) Application. Compared to KTM brakes, all
Japanese brands suffer. The quickest way to bring KX,
CR, RM or YZ brakes up to modern standards is with
an oversized rotor. The Tsunami is available for Honda,
Kawasaki, Yamaha and Suzuki motocrossers. KTMs come
stock with 260mm Galfer rotors.
WHAT’S THE SQUAWK? Do not throw the Tsunami
kit on your bike and show up on the line for your first
moto. It took us about 20 minutes of riding to seat the
pads to the new rotor.
If you think the OEM brakes on your KX450F
are good, then never ride a KTM. If you do,
you’ll be ordering an oversized Galfer
Tsunami rotor the next day.
GALFER TSUNAMI 270MM BRAKE KIT
MXA TEAM TESTED