69
Technical Manual Gear Hub Systems 2010 ·
GEN.0000000002002 · Rev. A
SRAM S7 with coaster brake
SRAM S7 without brake
Type
MH 7215
MH 7205
Brake
With coaster brake
Without brake
Over Locknut Dim., OLD
130 mm
130 mm
Length,
L
183.4 mm
183.4 mm
Ends Diameter, T
FG 10.5
FG 10.5
Dropout Width Dim.
A
1
max. = 12.5 mm / A
2
max. = 12 mm
A
1
max. = 12.5 mm / A
2
max. = 10 mm
Holes
36 36
Hole Diameter, DS
3.0 mm
3.0 mm
Hole Ref. ø, HR
75 mm
75 mm
Flange Dist. to
1
/
2
OLD
F
1
= 33 mm / F
2
= 34 mm
F
1
= 33 mm / F
2
= 34 mm
Totally
303 %
Speed
1
0,574
Speed
2
0,677
Speed
3
0,809
Speed
4
1,000
Speed
5
1,236
Speed
6
1,476
Speed
7
1,742
Usable Dimensions
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
C = 54 mm / D = 51 mm / E = 48 mm
C = 54 mm / D = 51 mm / E = 48 mm
Ratio
24", 26", 28"= 1.83 – 1.90 / 20"= 1.83 – 2.00
min. 1.83
Sprocket
16 – 24 Teeth (outward offset - Chain Line C) / 18 Teeth (straight - CL D) / 19 – 24 Teeth (inward offset - CL E)
Shifter
SRAM Grip 7
Clickbox
Clickbox S7
Tandem
Not suitable for tandems, transport bicycles or similar
Weight
1714 g
1556 g
Hub Shell Material
Steel Steel
Finish
Matt Chrome Plated or Black
Matt Chrome Plated or Black
SRAM
®
S7
TECHNICAL DATA / ASSEMBLY REQUIREMENTS
Caution:
Not suitable for tandems, transport
bicycles and similar.
Cycle frame:
• Dropouts must be parallel.
• Slot width at rear dropout 10
+0.5
mm.
• The strength must be such that with a
maxi mum braking torque of 250 Nm
(2200 in.lbs.) on the rear wheel no
residual deformation can occur on the
rear structure.
Compatibility
Axle
Spoke
Gear Hub Ratio
Chain
Finish
G
E
A
R
H
U
B
S
Gear steps
18 %
19 %
24 %
24 %
19 %
18 %
Version with Coaster Brake
R 100
Ø 7.3
HR
DS
A
1
max
A
2
max
F
2
F
1
L
1/2 OLD
OLD
C
D
E
7
min. 13.5
83
T
3.5
