21
1
2
6564
.PD
F
LE
FTY
NEEDLE
B
EAR
I
NG
RESE
T
T
he
uni
q
ue
advantage
of
the
Lefty
te
l
escopic
fork
structure
is
the
uti
l
ization
of
4
need
l
e
bearing
cages.
E
ach
cage
contain
22
precision
stain
l
ess
stee
l
need
l
e
bearings.
T
he
use
of
need
l
e
bearings
re
q
uires
l
ess
surface
area
to
make
the
te
l
escope
perform
smooth
l
y
and
e
ffi
cient
l
y.
T
his
is
accomp
l
ished
through
ro
ll
ing
versus
s
l
iding
and
resu
l
ts
in
l
ess
friction.
Less
friction
means
smoother
trave
l
,
pure
and
simp
l
e.
Compare
that
with
conventiona
l
forks
that
use
bushings
in
their
stanchions.
T
hese
bushings
have
more
contact
with
the
s
l
iding
part
of
the
scope,
which
generates
friction.
T
hat
friction
causes
a
heat
bui
l
d-up
within
the
fork
and
robs
performance.
BUS
HI
N
G
S
S
TI
C
KI
ON
N
EE
DL
E
B
E
AR
I
N
G
S
OU
TE
R
RAC
E
I
NN
E
R
RAC
E
R
E
DUC
E
D
F
R
I
C
TI
ON
B
ETTE
R
R
E
SPONS
E
CON
V
EN
TI
ONAL
F
OR
K
S
LE
FTY F
OR
K
S
T
he
system
re
q
uires
simp
l
e
periodic
maintenance
to
ensure
proper
bearing
a
l
ignment.
Why
? I
nside
the
fork
the
four
need
l
e
bearing
cages
of
the
te
l
escope
move
independent
l
y
up
and
down
between
each
inner
and
outer
race
pair.
Bearing
cage
migration
happens
when
a
cage
or
cages
shifts
out
of
a
l
ignment
up
or
down
in
re
l
ation
to
the
others.
V
ery
s
l
ight
migration
wou
l
d
not
a
ff
ect
trave
l
noticeab
l
y,
however,
as
a
cage
continues
to
move
out
of
position
re
l
ative
to
the
others,
the
avai
l
ab
l
e
trave
l
wi
ll
be
reduced.
Need
l
e
bearing
migration
is
norma
l
and
to
be
expected.
H
owever,
if
the
fork
in
this
state
for
extended
periods,
the
fork
can
be
damaged.
I
ndications
of
migration
are:
An
usua
l
“top
out
”
noise
,
reduced
trave
l
.
RESE
TTI
NG
NEEDLE
B
EAR
I
NG
M
I
GRA
TI
ON
T
he
procedure
for
resetting
your
specific
Lefty
need
l
e
bearings
is
described
in
the
section
of
the
supp
l
ement
specific
to
your
fork.
T
he
techni
q
ues
of
resetting
is
the
same
for
a
ll
forks,
however,
dis-engaging
the
damping
cartridge
di
ff
ers.
We
provide
the
information
in
the
supp
l
ement,
however,
we
recommend
that
you
a
l
ways
have
this
procedure
performed
by
your
Cannonda
l
e
Dea
l
er.
I
f
migration
re-occurs
fre
q
uent
l
y
(immediate
l
y
after
resetting),
the
cause
cou
l
d
be
damage
present
in
the
inner
or
outer
races,
,bearings/cages
or
other
fork
parts.
I
nspection
and
rep
l
acement
of
damage
parts
wi
ll
be
re
q
uired
to
correct
a
persistent
prob
l
em
with
bearing
migration.
