REDSHIFT 55mm SHOCKSTOP SUSPENSION STEM Instructions

55mm / 70mm SHOCKSTOP SUSPENSION STEM
INSTRUCTIONS
This stem is di erent than other stems, so please read these instructions and warnings completely before
installing or using it. If you are unfamiliar with bike maintenance or stem installation, or if you lack the
required tools, please visit your local bike shop or contact Redshift Sports customer service for assistance.
Improper installation or use may void the product's warranty policy and may lead to serious injury or death.
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COMPATIBILITY
• The 55mm & 70mm ShockStop is only compatible with drop handlebars. The ShockStop is not compatible
with at bars or swept back "cruiser" style handlebars.
• The handlebar clamp is 31.8mm and can t smaller diameter handlebars with appropriately sized shims.
• The ShockStop is designed for use on threadless headsets
with 1-1/8" (28.6mm) steerer tubes.
• If your bike has a quill stem, you will need to install a
quill-stem adapter (not included) to use the ShockStop.
TOOLS YOU'LL NEED
• 4mm hex wrench, torque wrench, bicycle grease.
WARNING
!
• Failure to follow these instructions and warnings may result in malfunction or breakage of this component, possibly
causing serious injury or death.
• Always use a torque wrench when installing or adjusting fasteners, and always tighten to Redshift torque
speci cations (or the bike manufacturer's torque speci cation). Periodically check all fasteners for tightness using a
torque wrench, since fasteners can loosen under the in uence of road vibration.
For the most up-to-date instructions,
instructional videos and additional resources,
visit www.redshiftsports.com.
# QTY PART NAME
1 1 Stem Tube
2 1 Steerer Tube Clamp
3 1 Pivot Shaft
4 2 Elastomers
5 1 Stem Faceplate
6a 4 Faceplate Bolt (M5 x 20 mm)
6b 2 Pinch Bolt (M5 x 17 mm)
7 1 Preload Insert
8 1 Backstop
9 1 Rebound Elastomer
We stand behind the products we sell and want you to have an amazing experience
WARRANTY
with your Redshift components. Warranty details and return instructions for all
Redshift products can be found at www.redshiftsports.com/warranty.
REMOVE YOUR EXISTING STEM
Note: This section describes the removal process for a typical threadless stem. If your bike has a quill stem, you
will need to install a quill stem adapter (not included) after removing the stem.
1. Unscrew and remove the faceplate bolts and remove the faceplate to separate the handlebar. You can let
the handlebar hang in front of the bike or rest on the front wheel.
2. Loosen the pinch-bolt(s) on your stem's steerer tube clamp.
3. Unscrew and remove the top cap of the steerer tube.
4. Slide the stem o the steerer tube (along with any spacers that are above the stem).
ATTACH THE SHOCKSTOP TO YOUR BICYCLE
The 55mm & 70mm ShockStop can only be installed in the +6 degree orientation (i.e. tilted slightly upwards).
5. Using a 4mm hex wrench, loosen the two pinch bolts (#6b), and slide the ShockStop steerer tube clamp
(#2) onto the steerer tube in the +6 degree orientation such that the REDSHIFT logo on the side of the
steerer tube clamp (#2) is upright. Position your bicycle's headset spacers above or below the stem, as
desired.
6. Make sure that the top headset spacer (or top of the stem if all spacers are positioned below the stem) is
slightly above (about 2-3mm) the top of the steerer tube.
7. Very lightly tighten the 2 pinch bolts (#6b) on the ShockStop in order to keep it from easily sliding back
and forth on the steerer tube.
8. Lightly screw the top cap onto the steerer tube until it begins to tighten (you will nish tightening in steps
21-24).
ADJUST ELASTOMER STIFFNESS
Note: The stem comes with elastomers pre-con gured at a medium-sti ness setting that most riders nd to
be a good t. You may want to try riding with this default con guration before adjusting sti ness.
9. Using a 4mm hex wrench, loosen and remove the four faceplate bolts (#6a) and remove the faceplate (#5)
and handlebar (if installed).
10. Remove the preload insert/elastomer (#7/#4) assembly.
11. After removing the preload insert and elastomers, ensure that the backstop
(#8) is sitting ush at the back/bottom of the stem tube. The word "TOP"
should be visible, with the arrows pointing upward, as shown in the gure.
• Periodically clean and inspect all surfaces of this component for hairline cracks or signs of damage. If you nd
any cracks or damage, immediately cease using the part and contact Redshift Sports customer service.
• Using the ShockStop stem can a ect a bicycle's handling characteristics. Following installation, practice using
the ShockStop at low speed in a safe area to get used to the bicycle's responsiveness and steering.
• This stem is intended for use only on paved or unpaved roads. O -road use may lead to slippage or breakage of
the component, possibly causing serious injury or death.
You may need to hook the small end of your
4mm hex wrench in the hole at the bottom of
the preload insert (#7) in order to pull the
insert out. It may be helpful to push down on
the end of the stem tube (#1) to force the
preload insert slightly outwards.