Öhlins Racing AB
Box 722
S-194 27 Upplands Väsby, Sweden
Phone +46 8 590 025 00
fax +46 8 590 025 80
© Öhlins Racing AB. All rights
reserved. Any reprinting or
unauthorized use without the written
permission of Öhlins Racing AB
is prohibited.
www.ohlins.com
Öhlins products are subject to
continuous improvement and
development, therefore, although
these instructions include the most
up-to-date information available at
the time of printing, minor updates
may occur.
To find the latest information contact
your Öhlins distributor. Please
consult your Öhlins dealer if you
have any questions regarding the
contents in this document.
Shock Absorber for ATV Honda TRX450 - front
HO 671
Mounting Instructions
Part No. Pcs.
Shock absorber HO 671 2
C-spanner 00710-01 2
Stop washer 00115-01 2
Spring clip 00116-03 2
Circlip 00131-01 2
Spring platform 00154-02 4
Support sleeve 00417-02 2
Sleeve 03281-01 2
Öhlins Sticker 00197-01 2
Memo Notes Sticker 01180-01 1
Owner’s Manual ATV 07235-01 1
Note!
No spring included in this kit. See the Spring
Guide in this folder, or contact an Öhlins dealer
for advice.
Before installing this product, check the
contents of the kit. If anything is missing, please
contact your nearest Öhlins dealer.
Kit Contents
Set-up Data
Adjustments
Please note that during storage and
transportation, especially at high ambient
temperature, some of the oil and grease used for
assembling may leak and stain the packaging.
This is in no way detrimental to the product,
wipe off the excessive oil/grease with a cloth.
Part no. HO671_5
Issued 2009-02-26
Spring Preload
Adjuster
Warning!
Before installing this product, read the Öhlins
Owner’s Manual. The shock absorber is an
important part of your vehicle and will affect the
stability.
Warning!
Before riding, always make sure that the
basic settings made by Öhlins are according
to recommended Set-up Data. Read about
adjustments and setting up in the Öhlins
Owner’s Manual before you make any
adjustments. Contact an Öhlins dealer if you
have any questions about setting up the shock
absorber.
The total spring characteristic can be adjusted
by moving the spring platforms on the floating
sleeve. Read about Spring preload and the other
adjustment possibilities in the Öhlins Owner’s
Manual.
Rebound damping 20 clicks
Compression damping
Low speed 15 clicks
High speed 2 turns
Free sag and Ride height
Free sag, front 60±5 mm
2½±¼’’
Free sag, rear 30±5 mm
1¼±¼’’
Ride height, front 80±5 mm
3¼±¼’’
Ride height, rear 105±5 mm
4½±¼’’
Shock absorber data
Length 419 mm
Stroke 112 mm
Compression
Damping Adjuster
Rebound
Damping Adjuster
1 2
Install the Spring How to install
1
Note!
Before installing the shock absorbers on the
vehicle you need to install the correct springs.
See spring guide in this manual.
1
Insert the circlip (00131-01)
in the correct groove.
Circlip 00131-01
Washer 00115-01
Short spring
Spring platform
00154-02
Long spring
Spring clip
00116-03
Sleeve 03281-01
Support sleeve
00417-02
2
Install the short and long springs, the
surrounding parts but not the spring clip
(00116-03).
3
Measure the free length of the springs and
surrounding parts (without the spring clip
00116-03) according to g. 3 (A).
4
Install the spring clip (00116-03) and, again,
measure the length of the springs and
surrounding parts according to g. 4 (B).
Preload
A
B
A - B = Spring preload
Adjust the total preload by moving the
upper spring seat circlip (00131-01)
to another groove. See Set-up data in
this folder for correct preload.
5
Set the short spring stroke position - “Cross
over” according to the Set-up data in this
folder.
Groove No 1
Groove No 2
and so on...
Spring guide
Note!
Before installing the shock absorbers, make sure
that the correct springs are installed.
Warning!
It is advisable to have an Öhlins dealer install the
shock absorber.
When installing, consult your Vehicle Service
Manual.
1
Raise the front end of the vehicle so that
the original shock absorbers are in a neutral
position.
Warning!
Make sure the vehicle is securely supported so
that it will not tip.
2
Remove the original shock absorbers.
3
Install the Öhlins shock absorbers in the
same positions as the original units. Fasten
the upper attachment rst. The piggy back
reservoirs should be at the top and facing
outwards.
4
Fasten the lower attachment. Raise or lower
the wheels slightly to make the attachment t.
!
Rider’s weight A-arm: Standard A-arm: Standard Mount +2’’
75kg /165Lb Long spring 06390-03 Long spring 06390-04
Spring rate Prog 18-27 N/mm Spring rate Prog 21-30N/mm
Short spring 04060-40 Short spring 04060-40
Spring rate 40 N/mm Spring rate 40 N/mm
85kg /187Lb Long spring 06390-04 Long spring 06390-05
Spring rate Prog 21-30 N/mm Spring rate Prog 24-33 N/mm
Short spring 04060-40 Short spring 04060-40
Spring rate 40 N/mm Spring rate 40 N/mm
95kg /209Lb Long spring 06390-05 Long spring 06390-06
Spring rate Prog 24-33 N/mm Spring rate 27-36 N/mm
Short spring 04060-40 Short spring 04060-40
Spring rate 40 N/mm Spring rate 40 N/mm
Total spring preload: 7 mm Total spring preload: 8 mm
Cross-over 15 mm Cross-over 15 mm
2
3
4
5
Tighten the attachment screws to the correct
torque. Consult your ATV Owners manual.
6
Check sag and ride height according to the
Öhlins owners manual. See also Set-up data
for this specic shock absorber kit on the
next page.
Caution!
Make sure that all screws are tightened to the
correct torque and that nothing fouls or restricts
movement of the shock absorber when the
suspension is fully compressed or extended.
3
4
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