WHAT IS IT? The Bridgestone Battlecross X40 rear tire
is designed for hard-to-intermediate conditions and
replaces the Bridgestone M604.
WHAT’S IT COST? $129.00–$150.00.
CONTACT? www.bridgestone.com or your local dealer.
WHAT STANDS OUT? Here’s a list of things that stand
out with the Bridgestone Battlecross X40 rear tire.
(1) Replacement. Bridgestone’s new Battlecross X40
tires are replacing the old M603 front and M604 rear.
Over the last few years, Bridgestone’s presence on the
AMA circuit has diminished greatly. Since Bridgestone
withdrew, Dunlop has reigned. Bridgestone was once a
major player, and they want to regain the prominence
they had with the well-received intermediate-terrain
M403/404 combo. Will they be able to make it to the top
of the charts once again? A lot of that rides on the X40.
( 2) Changes. There are three big innovations on
the Battlecross X40 Bridgestone: (a) Cooling fins.
Bridgestone’s engineers placed fins close together on the
sidewall of the tire. The theory behind the fins is that
since hard-to-intermediate conditions generate more heat
than soft-terrain conditions, the fins will aid in dissipating
the increased heat. (b) Reinforcing knobs. Best known in
tire jargon as tie bars, these are built-up bridges of
rubber between the knobs. These tie-bars aid in the
tire’s stability. MXA test riders complained about the
lack of knob stability when we tested the new X30
intermediate-terrain tire. The X30 does not have the
tie bars of the X40. (c) Castle blocks. There are castle
blocks—structural shapes—on every single knob of the
X40. These castle blocks increase traction in hard-packed
conditions. The old M604 only had castle blocks on
( 3) Performance. If we could describe the X40 in
one word, it would be stable. You always know what it
is going to do. It never wallows or breaks free. As our
MXA wrecking crew is a bit rebellious, they not only
rode this tire in hard-packed conditions, but also in sand
and loam. And you know what? We liked the X40 in just
about every condition we tried it in. It never betrayed us.
The reinforcements between the knobs really kicked this
tire into high gear in the hard-packed category.
( 4) Durability. This tire is the full package. It has
great performance and excellent durability.
( 5) Options. The Battlecross X40 rear tire comes in
many sizes. Bridgestone makes both 18- and 19-inch
rear tires. The 18-inch only comes in a 110/100 size. The
19-inch comes in a 100/90, 110/90 and 120/80.
WHAT’S THE SQUAWK? No complaints.
The X40 rear tire is light and offers great
performance and durability.
BRIDGESTONE BATTLECROSS X40 REAR TIRE
MXA TEAM TESTED