CRFSTUFF BLADE 280mm OVERSIZE BRAKE ROTOR
MXA TEAM TESTED
WHAT IS IT? When it comes to stopping power, the
bigger the rotor the better. A version of this rotor is used
by the Geico Honda team.
WHAT’S IT COST? $268.00.
CONTACT? www.crfstuff.com or (503) 830-6433.
WHAT STANDS OUT? Here’s a list of things that
stand out with CRFStuff’s Blade 280mm oversize rotor.
(1) Construction. The Blade brake rotor is laser-cut
and machined from heat-treated, 400-series stainless
steel. Its surface is ground to within 8 to 12 thousandths
of an inch. The mounting bracket is a machined piece of
6061 billet aluminum that is hard-anodized.
( 2) Danger. A larger-diameter brake rotor has more
stopping power, but it is also more prone to damage. For
this reason, the Geico Honda team runs CRFStuff’s
( 3) Floating rotors. Brake rotors typically warp at
their supporting arms. To keep heat away from the arms,
many rotors are made to float (using a two-piece design
that is held together by pins or rivets). Floating rotors
were once a big deal, but they are now falling out of
favor. The CRFStuff rotor is non-floating.
( 4) Numbers. CRFStuff’s 280mm rotor has a 36-
percent increase in the swept area and an 18-percent-
larger moment arm than the stock Honda rotor. If you
know your physics, this is a great argument for any
oversize rotor. Most aftermarket oversize rotors are
270mm; although EBC also offers a 280mm kit.
( 5) Installation. The giant 280mm disc isn’t even
close to fitting within Honda’s front brake guard. MXA
test riders don’t run Honda’s plastic guard in the first
place, but if you do, you will have to remove it to mount
the CRFStuff rotor. If you want to run a front disc guard,
( 6) Performance. The stock 250mm CRF450 front
brake had adequate power, but it was not impressive.
With the 280mm Blade installed, we no longer had to pull
the lever until it hit our fingers to stop the CRF450. The
larger rotor puts less demand on the hydraulics and
resists fading better.
( 7) Useability. When entering a turn on good dirt, the
big brake’s power was awesome. When trying to ease the
brake in a slippery turn, however, things got tricky. Riders
had to judge the amount of pressure put on the brake
lever instead of feeling for lever travel. This took a couple
of races to learn.
( 8) Pro kit. For an extra $80, CRFStuff will throw in a
set of AP Racing brake pads, their braided stainless-steel
brake line and a can of Motorex DOT 5.1 brake fluid. This
entire package costs $348.00.
WHAT’S THE SQUAWK? We have two complaints:
(1) Some riders thought the brakes were too powerful
and wanted more modulation. They should opt for the
270mm kit or an aftermarket 260mm kit. ( 2) Big rotors
are exposed to more danger in crashes and first-turn
collisions. That is the nature of the beast.
If you want the most powerful brake possible,
a 280mm front rotor is the easiest way to
achieve it. Most MXA test riders opt for 270mm.