SRAM DualDrive 24, Technical Manual, Page: 15 / 76

Technical Manual 2006
13
SRAM S7
TECHNICAL DATA / ASSEMBLY REQUIREMENTS
i-BRAKE for SRAM S7:
see page 54.
Caution:
• SRAM S7 hubs are not suitable for
tandems, trademen’s delivery bicycles
and similar.
• SRAM S7 with coaster brake resp.
i-BRAKE are „DIN Plus City“ certified.
Cycle frame:
• Dropouts must be parallel.
• Slot width at rear dropout max. 10,5 mm.
• The strength must be such that with a
maximum braking torque of 250 Nm
(2200 in.lbs.) on the rear wheel no
residual deformation can occur on the
rear structure.
SRAM S7 with coaster brake SRAM S7 for i-BRAKE SRAM S7 with drum brake SRAM S7 without brake
Type MH 7215 – MH 7225 MH 7205
Brake Coaster i-BRAKE (see page 54) Drum „D“
❘
„NL“ None
Over Locknut Dim., OLD 130 mm 135 mm 135 mm 130 mm
Length, L 183.4 mm 188.5 mm 188.5 mm 183.4 mm
Ends Diameter, T FG 10.5 FG 10.5 FG 10.5 FG 10.5
Dropout Width Dim. A
1
max.=12.5mm / A
2
max.=12mm A
1
max.=12.5mm / A
2
max.=12.2mm A
1
max.=12.5mm / A
2
max.=12.2mm A
1
max.=12.5mm / A
2
max.=10mm
Holes 36 36 36 36
Hole Diameter, DS 3.0 mm 3 mm 2.9 mm 3.0 mm
Hole Ref. ø, HR 75 mm 75 mm 89 mm 75 mm
Flange Dist. to
1
/
2
OLD F
1
= 33 mm / F
2
= 34 mm F
1
= 35.4 mm / F
2
= 32.7 mm F
1
= 34.8 mm / F
2
= 35.7 mm F
1
= 33 mm / F
2
= 34 mm
Totally 303 %
Speed 1 57 %
Speed 2 68 %
Speed 3 81 %
Speed 4 100 %
Speed 5 124 %
Speed 6 148 %
Speed 7 174 %
Usable Dimensions
1
/
2
" x
1
/
8
" or
1
/
2
" x
3
/
32
"
1
/
2
" x
1
/
8
" or
1
/
2
" x
3
/
32
"
1
/
2
" x
1
/
8
" or
1
/
2
" x
3
/
32
"
1
/
2
" x
1
/
8
" or
1
/
2
" x
3
/
32
"
Line, C/D/E 54 / 51 / 48 mm 55.5 / 52.5 / 49.5 mm 55.5 / 52.5 / 49.5 mm 54 / 51 / 48 mm
Ratio 24", 26", 28"= 1.83 – 1.90 / 20"= 1.83 – 2.00
Shifter SRAM Grip 7
Clickbox Clickbox S7
Hand Brake Lever — see page 55 see page 15 —
Tandem — — — —
Weight 1714 g 2164 g (complete with i-BRAKE) 1737 g 1556 g
Hub Shell Material Steel Steel Aluminum Steel
Finish Matt Chrome Plated or Black Matt Chrome Plated Clear Coat Matt Chrome Plated or Black
➔ ➔ ➔
➔ ➔ ➔
➔ ➔
➔ ➔ ➔
➔ ➔ ➔
➔ ➔ ➔
➔ ➔ ➔
➔ ➔ ➔
➔ ➔ ➔
➔ ➔ ➔
➔ ➔ ➔
Axle
Spoke
Gear Hub Ratio
Chain
Compatibility
Finish
H
U
B
S
R 100
Ø 7.3
HR
DS
A
1
max A
2
max
F
2
F
1
T
L
1/2 OLD
OLD
C
D
E
Version with Coaster Brake
7
min. 13.5
3.5
NEW NEW NEW
NEW NEW
NEW