2017 Dirt Freak Catalogue

SIGNIFICANT LIGHT WEIGHT
TITANIUM AXLE SHAFT
TITANIUM
OFFROAD
STREET
LIGHT WEIGHT
The specific gravity of Ti-6AL-4V is about 4.4. This is about
56 % with respect to the specific gravity of 7.8 of stock
axle shaft using iron( SS400 ) and carbon steel ( S45C
), or chromium molybdenum steel shaft ( SCM440 ). This
means that if you manufacture the axle shaft in the same
mass, 64 titanium will be able to produce about 44 % reduction.
The reduced weight of the axle shaft also reduces
the unsprung weight and corner approaches will improve
the handling and stability. In addition, the reduction of unsprung
weight will not only improve the movement of the
suspension, but also improve brake performance.
ULTRA STRENGTH
Strength of Ti- 6AL- 4V is comparable to chromium
molybdenum steel ( SCM435 ) 900 - 930 Mpa. With
the higher strength axle shaf t, you will be able to
feel more road sur face information more directly.
Yo u w i l l b e a b l e t o s e n s e t h e b u m py r o a d t h a t
could not be felt until now.
BENDING
The Young’s modulus ofTi-6AL-4V is about half of iron and
chromium molybdenum steel at 106 Gpa. The Young's
modulus represents the rigidity and elasticity, the higher
the number, the higher the high rigidity. Generally, one
thinks "high-strength = high rigidity,” also 64 titanium has
been taken for granted as high rigidity, but actually it is
only half the rigidity of iron. Therefore it easily deformed,
but there is elastic deformation where a material tries to
return to it’s original state and plastic deformation where
deformation is permanent. 64 titanium has a wide range of
elastic deformation. In other words this is "BENDING". It is
this bending that produces the suspension effect, and high
strength that softly transmits road surface information.
Not only Light. Not only strong. Not only flexible. If it is made of aluminum or
magnesium it will be lighter than 64 titanium but it will lack strength. If it is made
of chromium-molybdenum steel and nickel-chromium steel it will be stronger than
64 titanium, but it will be heavy. There is also materials having Young's modulus
lower than 64 titanium, but it will not mean that there is "BENDING.” 64 titanium
is superior to a balance of these materials. Therefore it may be said that it is the
best material for the axle shaft.
Also we must not forget the appearance of titanium. It more difficult to rust than
stock shaft and chromium-molybdenum steel shaft that has a protective surface
treatment. However, it does not escape corrosion where the surface is compromised
for some reason. Ti-6AL-4V forms a passive film surface to prevent semipermanent
rust to form.
Material
Material symbol and heat treatment
Tensile
strength
(T/Mpa)
Young's
modulus
(E/Gpa)
Specific
gravity
Rolled steel for general structure SS400(Annealing) 450 206 7.87
Carbon steel for mechanical
structure
S45C(Normalizing) 570 or more 205 7.83
Chromium-molybdenum steel SCM440(Tempering quenching) 980 or more 206 7.86
Austenitic stainless steel SUS304(Solution treatment) 520 or more 197 7.93
Pure aluminum A1085 P(Annealing) 55 69 2.70
Duralumin (aluminum alloy) A2017 P(Natural aging) 355 69 2.79
Ultra duralumin (aluminum alloy) A2024 P(Natural aging) 430 74 2.78
Extra Ultra duralumin
(aluminum alloy)
A7075 P(quench-and-temper) 573 72 2.81
Pure titanium (JIS grade1) TF270 275-412 106 4.51
Pure titanium (JIS grade 2) TF340 343-510 106 4.51
Pure titanium (JIS grade 3) TF480 481-618 106 4.51
Titanium ( alloy) Ti-5AL-2.5Sn 850 118 4.48
Titanium ( alloy) Ti-6Al-4V 900-930 106 4.43
Titanium ( alloy) Ti-15Mo-5Zr-3AL 1470 75-95 4.80
72
H
Y
OFFROAD
Bike Year Front Rear
CRF250R 04-17
CRF450R 02-17
CRF450RX 17
CR125R 04-07
ZT60-1164
ZT60-1264
#1
CR250R 04-07
CRF150R/B 07-17 ZT60-1161 ZT60-1261
CRF250L/M 12-15 ZT60-1173 ZT60-1273
YZ250F 14-17
ZT60-4265
YZ450F 14-17
ZT60-4165
YZ250FX 15-17
ZT60-4264
YZ450FX 16-17
WR250R/X 07-17 ZT60-4173 ZT60-4273
KX250F 04-17
KX450F 06-17
KLX450R 08-15
KX125 04-08
KX250 04-08
KLX250R/SR 93-97
K KLX300R 96-07
KDX200 95-99
KDX220R/SR 94-05
KLX650R 93-96
KLX250/D-Tracker 98-06
KLX250/D-Tracker 07
ZT60-2164
ZT60-2172
ZT60-2264
#2
ZT60-2272
#3-1
ZT60-2173
KLX250/D-TrackerX 08-16 ZT60-2273
Please check race regulation when use for race
Bike Year Front Rear
RMZ250
04-06
07-17
RMZ450 05-17
ZT60-2164 ZT60-2264
S RMX450Z 10-
DRZ400S 00-16
ZT60-2272
DRZ400/E 00-17 ZT60-3173
#3-2
DRZ400SM 05-17 ZT60-3273
125/150/250SX 15-17
ZT60-5264
K
250/350/450SX-F 15-17
#4
T ZT60-5164
M
200-530EXC/R 16-17 ZT60-5263
250-500EXC-F 16-17
#4
FC250/450 15-17
H FC350 16-17
ZT60-5264
#4
U TX300 17
SKY FX350/450 17 ZT60-5164
TE125/250/300 16-17
FE250/350/450/501 16-17
ZT60-5263
TC125/250 16-17
TE150 17
#4
TX125 17
#1
#2
STREET
Bike Year Front Rear
CBR1000RR 08-16 ZT61-1101 ZT61-1201 #5
H
CB1300SF/SB 14-16 ZT61-1102 ZT61-1202 #5
Y
YZF-R1/M 15-16 ZT61-4101 ZT61-4201 #5
MT-09 14-16 ZT61-4102 ZT61-4202 #5
Ninja ZX-10R 16 ZT61-2101 ZT61-2201 #5
K Ninja ZX-14R 06-16 ZT61-2102 ZT61-2202 #5
Ninja H2/R 15-16 ZT61-2103 -
S
GSX1300R 08-16 ZT61-3101 ZT61-3201 #5
GSX-R1000 17 ZT61-3102 ZT61-3202 #5
B S1000RR 15-16 ZT61-6101 ZT61-6201 #5
1199/S/R,1299/S 12-16 ZT61-7101 -
D
MONSTER1200/S/R 14-16 ZT61-7102 -
ZETA axle block ( ZE93-5013 ) or CRF 09` UP L side stock axle block ( 42305-KRN-A30 ) need to be replaced CR/CRF -`08.
ZETA axle block ( ZE93-514X ) or KX450F 16` UP or L and R side stock axle block ( 33040-0050 / 33040-0080 ) need to be replaced
KX/KX250F -16, KX450F -15`.
Recommend to replace to KAWASAKI stock lock nut ( 92210-0939 ) for model with cotter pin in castle nut.
#3-1 KAWASAKI stock snail cam ( 33040-1113 ) needs to be required for shaft and snail cam welded models.
#3-2 SUZUKI stock snail cam ( 61410-29F00 ), YAMAHA stock M20 lock nut ( 90185-20002 ), M20 washer ( 90201-20020 )
need separately.
#4 Requires to take stock L side axle block off. Please use strong locktite when mounting.
#5 Comes with titanium nut and safety clip.