DURA-ACE Front Whee
WH-7900-C50-TU-F
13
13
12
8
9
14
14
10
7
6
4
3
1
3
2
15
6
• Over Lock Nut Dimension: 100 mm (3-15/16")
ITEM
NO.
A: Same parts.
B: Parts are usable, but differ in materirals, appearance, finish, size, etc.
Absence of mark indicates non-interchangeability.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SHIMANO
CODE NO.
Y4G998010
Y4G998020
Y23321000
Y4G998030
Y4G998040
Y4BN98030
Y4G998050
Y4G998060
Y4G914000
Y4EF27000
IWHRIM2JFGCT
IWHSPOKE2HA1
Y012Z407
Y012AB60
Y4DN98090
Y4EF28000
Y4DK89000
Y4GL98010
Y8FN98140
Y8FA9814
Y4GL98020
DESCRIPTION
Complete Quick Release 133 mm (5-1/4") A B
Quick Release Nut AB
Volute Spring AA
Complete Hub Axle A
Hub Axle Uni
Ball Retainer (5/32") AA
Left Hand Lock Bolt Unit A
Hub Cap A
Inner Ring A
Seal Ring AA
Rim {16H}
Spoke Unit {Spoke (260 mm x 16 pcs.) / Nipple (16 pcs.)} A A
Nipple AB
Spoke (260 mm) AA
Magnet Senso
Nipple Wrench AA
TL-WH78 Nipple Wrench AA
Rim Sticker Unit
R55C3 Brake Shoes & Fixing Bolts (Pair) for Carbon Rim
R55C Brake Shoes & Fixing Bolts (Pair) for Carbon Rim A
Valve Extension Uni
10
16
11
18
19
9
8
5
17
4.0
20
L
L
C
C
-
-
0
0
5
5
C
C
-
-
0
0
0
0
9
9
7
7
-
-
-
-
H
H
H
H
W
W
W
W
INTERCHANGE-
ABILITY
U
U
T
T
-
-
0
0
5
5
C
C
-
-
0
0
5
5
8
8
7
7
A
AA
AB
Jan.-2011-3133
© Shimano Inc. I
Specifications are subject to change without notice.