DSS/DS ISCG-05 Chain Retention System
These instructions are for the 2009 DSS/DS ISCG-05 with Turbocharger bashguard. If in doubt about
the correct ISCG configuration and installation of our DSS chain retention system please contact us :
www.e13components.com/support.html
support@e13components.com
Par ts List:
(B)
(A)
A. (1) DSS steel ISCG-05 backplate
B. (1) Stealth roller
C. (1) Outer guard
(C)
D. ( 2 ) D R S b e a r i n g
E. (2) M5 x 30 mm bolt
F. ( 2 ) M 5 n y l o n l o c k n u t
(M)
G. (1) Axle
H . ( 3) To r x- 2 5 l o w p r o f i l e p a n h e a d b o l t
I . ( 3) 2 . 5 m m I S C G s p a c e r ( b l a c k )
J. ( 2 ) 1 . 2 5 m m I S C G s p a c e r ( g o l d )
(L)
K. (1) Silver washer
L . ( 3) 1 m m b o t t o m b r a c ke t s p a c e r ( s i l v e r )
M. ( 1 ) 0.5 m m b o t t o m b ra c ke t s p a c e r ( b l ack)
N. ( 1 ) Tu r b o c h arg e r b a s h gu a rd ( DS S O n l y)
(J)
(I)
(D)
(K)
(G)
(F)
(H)
(E)
Snug bolts to 0.9 Nm to keep plastics from moving freely. Over tightening will damage the plastics!
1. Remove the crankset from your bike.
Fig 2
Fig 1
Check your drivetrain components to
be sure everything is undamaged and
straight. Bent parts hinder performance!
2. Insert the DSS bearing into the side of
the roller. From the other side, insert the
custom aluminum axle. Complete the
roller assembly by carefully pressing the
other DSS bearing over the axle. (Fig 1)
3. Insert the two M5 x 30mm bolts through
the holes on the plastic outerguard. Slide
the roller assembly onto the rear bolt, and
put the silver washer on. Insert the lower
assembly through the steel backplate and
affix with the M5 nylon lock nuts. (Fig 2)
and (Fig 3). Leave the M5 bolts loose for
now.
Silver washer
Fig 3
4. Use the three Torx25 low profile pan head
bolts to attach the
backplate to the ISCG05 tabs. (Fig 4) For
now, tighten these bolts
so that the backplate
does not rotate by itself.
Fig 4
Fig 5
4.8Nm
5. Attach the Turbocharger Bashguard (DSS Only) to your
crankset with stock chainring bolts. The chainring is attached to the inner side of the chainring tabs, and the
bashguard is placed on the outside of the chainring tabs.
Torque the bolts to 4.8 Nm, roughly the amount you can
tighten with the Short end of an “L” shaped 5mm allen
wrench. The inserts in the Turbocharger will prevent damage in the event of overtorquing. Locktite is not needed.
6. Reinstall cranks and tighten fully. The middle chainring should be
centered over the smaller roller step (Fig 6). If it is not, ISCG spacers can be used behind the backplate to push the backplate outward
2.5mm. If your inner crank bolts touch the backplate, use the 1.25mm
ISCG spacers between the backplate and the roller assembly to extend it outward.
7. Rotate the backplate so that the top of the roller assembly is level
with the bottom of your Bottom Bracket shell. (Fig 7). Some frames do
not allow this much rotation, so get it as close as possible. The lower
slider should be positioned 3mm away from the edge of the bashguard,
and torqued to 0.9 Nm (a few turns past finger tight, when the roller just
holds itself in place). Tighten
Fig 7
the Torx-25 low profile pan
head bolts to 6 Nm.
Fig 6
3mm
0.9 Nm
6 Nm
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Leominster, MA 01453
978.537.9313
www.e13components.com