hammerschmidt™ User manual
english
95-6115-004-000 rev a
6
english
hammerschmidt™ User manual
7
frame PreParation - Part ii (cont)
Locate your offset in the chart below and select the spacer or combination of spacers from those supplied with the Truvativ
ISCG cutter. The cutter comes with 0.5 mm, 1 mm, and 2 mm width spacers, each marked with its width. For 68 mm width
bottom brackets, do
not
exceed 0.5 mm of cutter tool spacing. For 73 mm and 83 mm width bottom brackets, do
not
exceed
3.0 mm of cutter tool spacing.
OFFSET (mm)
ISCG CUTTER SPACER(S) REQUIRED*
0.0
None
0.1 - 0.5
0.5 mm
0.6 - 1.0
1.0 mm
1.1 - 1.5
1.5 mm
1.6 - 2.0
2.0 mm
2.1 - 2.5
2.5 mm
2.6 - 3.0
3.0 mm
†
*write this number down you will need it again later on
†
maximum spacer value for 73 and 83 mm bottom brackets
Face the ISCG tabs using the same method provided by the manufacturer of your bottom bracket facing tool. If the cutter
does not completely face the surface of each tab, add a 0.5 mm spacer to the cutter tool and face again. Remember, do
not exceed 3.0 mm of spacers. When you are finished facing, be sure the ISCG tab surface is smooth and free from burrs
and debris.
Caution:
for 73 and 83 mm bottom brackets do not exceed 3.0 mm of spacers during facing. If you exceed
3.0 mm of spacers the resulting offset will be too large and the custom HammerSchmidt mounting bolts will not have
enough thread engagement with ISCG tabs to safely mount HammerSchmidt.
Grease it UP
Apply a liberal amount of grease to the bottom bracket shell threads in the frame. If you haven’t already, pull the non-drive
side cup off the bottom bracket and apply a small amount of grease to the cup threads. Carefully separate the center shell
from the drive side cup and apply a small amount of grease to the o-rings on each side of the cup. Insert the center shell
back into the drive side cup. Finally, apply a small amount of grease to the drive side cup threads.
size it UP - 68
mm
bottom brackets only
If you have a 68 mm bottom bracket shell, separate the two parts of the bottom bracket and install the included bottom
bracket spacers, one over the drive side bottom bracket cup, the other over the non-drive side bottom bracket up. This will
set the bottom bracket spacing to accommodate HammerSchmidt.
hammerschmidt™ installation
1
grease
spacer
spacer
2
Summary of Contents for TRUVATIV
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