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BP-021 · Hydraulic disc brake
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1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A
A
B
B
C
C
D
D
E
E
F
F
22
80
s=0
1
4
10
11
12
13
14
15
16
17
18
19
3
5
6
9
7
D
A
A
SECTION IN THE PLANE OF THE LEVER
LEVER AND MASTER CYLINDER · SCALE 2:1
1.25
Ø0.7
DETAIL D
TIMING PORT · SCALE 10:1
8
Ø22
20
21
24
25
26
28
E
C
SECTION B-B
CALIPER · SCALE 2:1
Ø22.2
2
29
SECTION A-A
SPLIT CLAMP · SCALE 2:1
23
DETAIL E
SQUARE SEAL ROLLBACK · SCALE 20:1
δ=0.00
22
B
B
Ø160
R70.5
27
VIEW C
ROTOR Ø160 · SCALE 1:2
FREE
PAD GAP
CONTACT
0
0.5
1
1.5
2
0
2
4
6
8
10
12
14
16
18
FINGER TRAVEL s, mm
CLAMP F, kN
DIAGRAM 1
THIN: MODEL · ACCENT: THIS PULL
NOTES
1. OIL 15 IN ACCENT; p IN bar (GAUGE).
2. LEVER 80/22 = 3.64; Ø22²/Ø10² = 4.84.
3. CUP 8 SHUTS PORT Ø0.7 AFTER 1.25.
4. PAD GAP 0.25 A SIDE = SEAL ROLLBACK.
5. T = 2·μ·F·R; μ 0.45, R 70.5.
6. 90 kg ON 29×2.4: 110 N → 3.6 m/s².
7. PINS, ROD, NUT, BALL NOT CUT.
ITEM
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28
29
DESCRIPTION
LEVER BODY
CLAMP HALF Ø22.2
LEVER BLADE
PIVOT PIN Ø6
BARREL NUT M4
PUSHROD M4, BALL Ø4.8
MASTER PISTON Ø10
PRIMARY CUP Ø10
SECONDARY SEAL Ø10
RETURN SPRING, 5 TURNS
CIRCLIP 10 DIN 472
DUST BOOT
RESERVOIR CAP
BLADDER
MINERAL BRAKE OIL
COMPRESSION NUT M8×0.75
OLIVE Ø5
HOSE INSERT Ø2.1
HOSE Ø5×2.1, 1000 LONG
CALIPER HALF, INBOARD
CALIPER HALF, OUTBOARD
CALIPER PISTON Ø22
SQUARE SEAL Ø22
PAD, RESIN ON STEEL
PAD SPRING t0.4
PAD PIN Ø3, M3
ROTOR Ø160×1.8
O-RING 3×1
CLAMP SCREW M5×16 ISO 4762
MATERIAL
EN AW-6061-T6
EN AW-6061-T6
EN AW-7075-T6
1.4305
CuZn39Pb3
1.4305
EN AW-2011
HNBR 70
HNBR 70
EN 10270-3 Ø0.6
C75S
EPDM 50
PA6-GF30
HNBR 50
ISO VG 7
CuZn39Pb3
CuZn37
1.4305
PA12/ARAMID
EN AW-6061-T6
EN AW-6061-T6
PF PHENOLIC
HNBR 70
DC01 + RESIN
1.4310
1.4305
X46Cr13
HNBR 70
STEEL 8.8
QTY
1
1
1
1
1
1
1
1
1
1
1
1
1
1
25 ml
2
2
2
1
1
1
2
2
2
1
1
1
1
2
TITLE
HYDRAULIC DISC BRAKE
DWG NO
BP-021
SCALE
2:1
SIZE
A2
SHEET
1 / 1
DRAWN
CLAUDE
DATE
2026-10-15
MATERIAL
SEE PARTS LIST
GENERAL TOL.
ISO 2768-m
UNITS
mm · bar · N
LIVE · s, FINGER F, OIL p, CLAMP, TORQUE, DECEL · DRAG THE LEVER · ↑ ↓ · SPACE
Drag the lever ·
↑
↓
pull and release ·
Space
squeeze ·
S
slow
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