You don’t see orange-anodized aluminum very
often, and when combined with the orange
shock springs, the chassis adornments on the
RAZ-R really pop.
Check out those front steering knuckles!
;ey use an interesting hybrid kingpin/pivot
ball design that eliminates the need for a
separate caster block without using a full
pivot-ball setup.
Aluminum-fortified plastic chassis
;e RAZ-R is built on a reinforced plastic semi-tub chassis bolstered by a
two-piece aluminum upper deck that ties neatly into the center-mounted
spur gear mount/shaft support. In addition to contributing to the chassis
rigidity (which is high, based on a two-hand twist test), the orange-anodized
parts really pop against the black chassis and other molded parts. ;e chassis uses space e;ciently to hold all the electronic gear and also provides
good access for maintenance.
High-torque 550 power
A four-wheel drive truck requires more torque from its
power systems than a 2 WD counterpart, making the longer
“550-size” motor under the RAZ-R’s hood a smart choice.
;e DHK H111 speed control features forward and reverse
operation, 45A of power and integrated heat sinks to help
keep the unit cool.
550 motors versus 540
;e numbers “550” and “540” that are often used as motor designations refer to the length of the motor’s “can” in millimeters (the can is the motor’s
cylindrical outer housing). However, few 550 and 540 motors are precisely 550 and 540 millimeters long, so the terms can be thought of as catch-alls
for “long can” and “short can” motors. Why choose one over the other? A longer can holds longer magnets, which results in a stronger magnetic field,
and thus more torque. Just the thing for a 4 WD truck such as the RAZ-R.
