SRSuntour Fork Manual General
SRSuntour Fork Manual General
SUSPENSION FORKS
WARNING!
Carefully read, understand and follow the instructions provided in this manual,
and keep it in a safe place for future reference. If you have any doubt whatsoever
regarding the use or maintenance of any SR SUNTOUR product, please contact
SR SUNTOUR. Failure to follow these warnings and instructions can result in
product malfunction, causing an accident, severe injury or death.
ENGLISH
TABLE OF CONTENTS
Overview 3
Fork assembly 5
Tyre clearance 5
Maintenance plan 8
Limited warranty 8
Intended use 9
Steerer
Upper crown
Compression Adjust
Top tube bumper
TIGHTENING TORQUES
Spring side, top 10Nm Spring
Spring side, lower (fix 10Nm
Lower crown travel) Crown
Spring side, lower 4Nm
(travel adjust) Stanchion
Damping side, top 10Nm
Damping side, lower 6Nm
Stanchion Crown clamps 8Nm
WARNING!
For proper torque of the V-brake mount
brake mount, please refer - XCM
Dust seal
to the manuals provided by - XCT
the brake manufacturer. Lower - M Series
Max. disc Stanchion - NRX
- NVX
203mm 38, 36, 35, - NCX
34mm - NEX
Lower 180mm 32, 30, 28mm - CR Models
- Swing Shock
160mm 25,4mm &
Swing Shock Brake mount
Thru axle PM8
- RUX
Brake mount PM8 PM7
Thru axle
- DUROLUX 27,5
Q-LOC PM6
Thru axle
(all models tagged with QLC) - all other disc brake
with or without Quick forks
quick release release
dropout
Rebound adjust
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IMPORTANT SAFETY INFORMATION
WARNING!
Failure to follow all warnings and safety instructions can cause your product to malfunction, resulting in an
accident, severe personal injuries or even death to the rider.
Read this manual thoroughly before using your suspension system.
These instructions contain important information about the correct installation, service and maintenance of
your suspension system. Common mechanical knowledge may not be sufficient. Your suspension system
should only be installed, serviced and/or maintained by a trained and qualified bicycle mechanic with special-
ized tools.
Our suspension systems contain fluids and gases under extreme pressure. Never try to open any SR SUNTOUR
suspension system! Pieces can be violently ejected.
SR SUNTOUR suspension systems are designed as a single integrated system. To avoid product malfunction
and an accident, only use genuine SR SUNTOUR spare parts. The use of third-party supplier spare parts also
voids the warranty of your suspension system.
Your suspension system is not intended for jumps, aggressive downhill rides, freeride or dirtjumping if the
warning sticker on your suspension system prohibits these activities. Disregarding these instructions may
cause your product suspension system to fail, resulting in an accident, personal injury or death, and will void
the warranty.
SR Suntour suspension system is designed for use by a single rider.
Select the correct suspension system according to your frames dimensions and your personal riding style.
Installing a suspension system which does not match the geometry of your frame could result into a failure of
the suspension system or frame itself, and will void the shocks warranty.
Know the limits of your skill and experience, and never ride beyond them.
Read, understand and follow all owners manuals provided with your bike and all of its components.
Always be equipped with proper safety gear. This includes a properly fitted and fastened helmet. According to
your riding style you should use additional safety protection. Make sure your equipment is in flawless condi-
tion.
Even if you had a suspension system in the past, ride carefully and slowly to become accustomed to the feel of
your new suspension system.
SR SUNTOUR suspension systems are not equipped with front reflectors for use on public roads. If you intend
to use your bicycle on public roads or bicycle paths, you must install the required front reflectors. Please con-
tact your dealer.
If you are using a bicycle rack that requires the front wheel to be removed, carefully insert and remove the drop
outs from the bike rack. Do not bend the drop outs!
If you are using a bicycle rack that fastens the bicycle at the front drop outs only, then the rear wheel must be
securely fastened to prevent movement of the rear wheel. Movement of the rear wheel will damage the front
drop outs, and this damage may not be visible to you.
If the bicycle has fallen off the bicycle rack, have it inspected by a qualified bicycle mechanic before riding it
again
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FORK ASSEMBLY
WARNING!
Avoid product malfunction, an accident, personal injury or death. Your new SR SUNTOUR suspension
system should be installed, maintained and serviced by a qualified and trained bicycle mechanic.
WARNING!
Avoid product failure and an accident, personal injury or death. All mounting screws must be tightened
with the respective torques specified by the manufacturer of each individual component (i.e., brake,
headset, etc.).
1. Remove the old fork from your bicycle. Remove the headset cup from the fork.
2. Measure the length of the steerer tube of your old fork and compare it to the length of the steerer tube of the
SR SUNTOUR fork. The standard length of SR SUNTOUR suspension fork steerer tubes is 255 mm. It may be
necessary to shorten the steerer tube to the correct length
3. Install the fork headset cup firmly at the top of your fork crown. Reattach the fork assembly (headset, spacer,
handlebar stem) to the bicycle. Adjust the headset until no more play is observed. Further information can be
found in the installation instructions of the headset manufacturer.
You can use the following formula to determine the proper length of the steerer tube: Head tube of the frame +
Headset height + Spacer if applicable + Height of the stem - 3 mm distance = Length of the steerer tube
4. Install and properly adjust the brakes according to the brake manufacturers instructions. If you are using a disc
brake, install the brake only into the designated receptacle hole for the disc brake. Use only cantilever brakes
that are made for use without support system. Follow the assembly instructions of your brake manufacturer.
Select the proper length for the brake cable so that it does not interfere with the fork or steering.
5. Reattach the front wheel. Make sure that all clamping levers and nuts are set and tightened properly (at least
four threads must engage in the nut when the quick release is locked). If the fork is equipped with a thru-axle
system, then all screws must be checked for proper torque. Follow the instructions of the Quick Release or Turn-
Axle manufacturer.
TYRE CLEARANCE
Please check in advance whether the wheel and fork are compatible. The necessary information can be found on the
side of the tyre. Every tyre has a different external diameter (width and height of the tyre). For this reason, check
the distance between your tyre and the fork to make sure your tyre does not touch the fork under any circumstanc-
es. Bear in mind that the narrowest part of the fork is at the brake boss level. If you want to remove your tyre, you
must release the air from your tyre, among other things, in order to fit it through the brake boss socket.
WARNING!
Warning! Using a tyre that is larger than the maximum tyre size for your fork is very dangerous and can
cause accidents, serious injuries and even death.
WARNING!
Inadequate tyre clearance will result in sudden and unexpected loss of bicycle control, an accident,
personal injury or death.
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Q-LOC ASSEMBLY INSTRUCTIONS
ASSEMBLY
1 Check the flange to 2
be expanded before
installation
and open the lever
completely.
REMOVAL
1 Open the lever 2
completely.
Press nut
until flange
retracts.
3 Turn nut 4
clockwise
until flange stays
latched.
Pull out
the axle.
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3 It is now possible to 4
slide the lever into the
axle.
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COIL SPRING PRELOAD
The fork can be adjusted to the rider's weight and preferred riding
style via the spring preload.
It is not the coil spring hardness that is set, but the spring preload.
This reduces the SAG of the fork when the rider sits down. A semi-
hard spring is used by default.
Turn the preload adjust knob clockwise to increase the spring preload
and turn it counter-clockwise to reduce it. Two additional spring stiff-
nesses are available for SR SUNTOUR suspension forks - softer and
harder than the standard coil spring.
MAINTENANCE PLAN
after every ride: Clean the fork tubes and dust seals and maintain with an oily cloth. Check stanchion tubes for
dents, scratches or other discoloration or leaking oil.
every 50 hours: Maintenance 1 (at dealer)
every 100 hours or once a year: Maintenance 2 (at dealer, ideally before winter time in order to protect all parts
from the effects of weather by proper greasing)
MAINTENANCE 1:
Check function of fork / check torques of mountings screws and nuts at dropout (10 Nm) / check for scratches, dents,
cracks, discolouration, signs of wear and signs of minor corrosion (maintain with oily cloth), or oil leaks.
MAINTENANCE 2:
Maintenance 1 + disassembly / cleaning the entire fork inside and out / cleaning and lubricating dust seals and
slider sleeves / checking torques / adjusting to the riders liking.
Before disassembly, check the slider sleeve play of the fork. To do so, apply the front wheel brake and gently push
the bicycle back and forth at the handlebar stem shaft. Replace the slider sleeves if the play is excessive (more than
1 mm at the fork brace).
LIMITED WARRANTY
COVERAGE
SR SUNTOUR, INC. (WARRANTOR) warrants that each SR SUNTOUR PRODUCT will be free from defects in
material and workmanship for a period of TWENTY FOUR (24) months from the date of the first retail purchase of
the PRODUCT. The Limited Warranty is referred to herein as the Limited Warranty. The PURCHASERs sole and
exclusive remedy under this Limited Warranty for defects in the PRODUCT shall be the repair or replacement, in
WARRANTORs sole discretion, of the defective PRODUCT, or components thereof.
ACTIVATION OF WARRANTY
In order to activate limited warranty coverage, the first retail PURCHASER (hereinafter referred to as PURCHAS-
ER) must register the purchase of the PRODUCT on line at www.SRSUNTOUR-CYCLING/Warranty.com within
seven (7) days of purchase of the PRODUCT.
NOT COVERED
This Limited Warranty does not apply to, will be deemed null and void, and WARRANTOR shall have no liability or
responsibility in respect of, damages or expenses relating to:
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The failure to properly install, use, maintain, store, or transport PRODUCT as, for example, specified in any
manuals or other literature supplied by WARRANTOR, on WARRANTORs website, or in accordance with any
applicable laws, codes, regulators or standards;
Improper specification or application of the PRODUCT as a sub component on a different product;
Any PRODUCT purchased from any entity other than WARRANTOR, WARRANTORs OEM (original equipment
manufacturer) customers, or WARRANTORs authorized dealers;
Alteration, change or modification of the PRODUCT, including its subcomponents, parts or assemblies;
Cosmetic issues, such as scratches, chips or colour deviations;
Accidents, neglect, misuse, abuse, improper use, lack of reasonable or proper maintenance, improper assem-
bly, repairs improperly performed, replacement parts or accessories not conforming to WARRANTORs specifi-
cations, use exceeding the recommended and permitted limits of the PRODUCT, or not following the warranty
procedure set forth herein.;
Activities such as acrobatics, stunt riding, ramp riding, racing, and/or normal wear or deterioration occasioned
by the use of the PRODUCT. Items subject to normal wear or deterioration include but are not limited to oil, dust
seals, oil seals, o-rings, bushings, bearings, rubber moving parts, stanchion tubes, bearings, and cartridges;
Any components of any other assembly on which a PRODUCT may be installed, and which may be damaged as
a result of the failure of a PRODUCT;
Any expenses related to the transportation of the PRODUCT to or from an authorized service center, labor
costs to remove the PRODUCT from the bicycle, or compensation for loss of use while the PRODUCT is being
repaired;
Any defect or non-conformity that has not been timely and promptly communicated in writing to WARRANTOR
or WARRANTORs authorized representative as set forth herein;
Any damage, cost or expense caused by Act of God; or
Loss of time, loss of use, inconvenience, loss of profits, lost business, lost business opportunities, damage to
reputation, goodwill and any incidental or consequential damages arising out of or relating to the PRODUCT, or
other matters not specifically covered hereunder.
This warranty will be automatically and immediately null and void if the serial number of the PRODUCT is altered,
erased, defaced or otherwise subject to any tampering. In addition, any use of the PRODUCT with a rental or leased
bicycle or for any other commercial use (i.e. on a messenger bike) shall render the Limited Warranty immediately
null and void.
PROCEDURE
In the event of an alleged defect covered by this warranty, PURCHASER shall, within ten (10) calendar days of learn-
ing of the alleged defect, contact the authorized retailer from which PURCHASER purchased the PRODUCT to give
specific and detailed notice of any non-conformities or defects regarding the PRODUCT. This notice shall include
photographs of the PRODUCT and including photographs of the alleged defect, a copy of the proof of purchase,
and the serial number of the PRODUCT. In addition, the maintenance history of the PRODUCT must be submitted
with the warranty claim. Within thirty (30) days thereafter, the PURCHASER will be advised of whether the limited
warranty claim is accepted or rejected. If accepted, the PURCHASER will be advised of the remedy to be provided
pursuant to the terms and conditions of this Limited Warranty.
In the event WARRANTOR, in its sole discretion, decides to replace the PRODUCT, but the same PRODUCT is no
longer available, WARRANTOR may replace the PRODUCT with a different product of equal or higher value to the
PRODUCT.
The PURCHASER forfeits any rights it may have under this Limited Warranty if the PURCHASER does not follow the
procedure described herein.
LIMITATION OF DAMAGES
Except as expressly provided by this Limited Warranty, Warrantor SHALL NOT BE RESPONSIBLE FOR ANY INCI-
DENTAL OR CONSEQUENTIAL DAMAGES ASSOCIATED WITH THE USE OR NON-USE OF THE PRODUCT OR A
CLAIM UNDER THIS LIMITED WARRANTY, WHETHER THE CLAIM IS BASED ON CONTRACT, TORT OR OTHERWISE.
The foregoing statements of warranty are exclusive and in lieu of all other remedies or damages. Some states do
not allow the exclusion or limitation of incidental or consequential damages, so this limitation or exclusion may not
apply to you.
DISCLAIMER
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND ALL IMPLIED
WARRANTIES ARISING FROM A COURSE OF DEALING, USAGE OF TRADE, BY STATUTE OR OTHERWISE, IS
HEREBY STRICTLY LIMITED TO THE TERM OF THIS WRITTEN WARRANTY.
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This Limited Warranty shall be the sole and exclusive remedy available to the PURCHASER with respect to this
PRODUCT. In the event of any alleged breach of any warranty or any legal action brought by the PURCHASER based
on breach of warranty, alleged negligence or other tortious conduct by WARRANTOR, the PURCHASERS sole and
exclusive remedy will be repair or replacement of defective materials or refund of the purchase price, as stated
herein. In no event shall the liability of the WARRANTOR exceed the purchase price of the PRODUCT.
APPLICABLE LAW
Any and all claims or disputes of whatever nature arising out of or otherwise relating to this Limited Warranty shall
be governed by and construed in accordance with the laws of the State of New York only, and the parties expressly
acknowledge and irrevocably agree that the sole and exclusive venue for and jurisdiction over any such claim or
dispute shall be the state or Federal courts siting in White Plains, New York to the exclusion of the jurisdiction of the
courts of any other place, without giving effect to choice of law principles and without giving effect to the United
Nations Convention regarding contracts for the International Sale of Goods (which the parties expressly exclude).
OTHER RIGHTS
Your acceptance of delivery of The PRODUCT constitutes your acceptance of the terms of this Limited Warranty.
This Limited Warranty gives you specific legal rights, and you may also have other rights which vary from state
to state. If any term or provision of this Limited Warranty is invalid or unenforceable under any local, state, or
federal law, statute, judicial decision, regulation, ordinance, executive order or other rule of law, such term shall be
deemed reformed or deleted, but only to the extent necessary to comply with such statute, regulation, ordinance,
order or rule and the remaining provisions of this Limited Warranty shall remain in full force and effect.
ENTIRE AGREEMENT
This document alone contains the entire Limited Warranty given by WARRANTOR in respect of the PRODUCT. Noth-
ing in WARRANTORs product literature, marketing materials, advertisements and technical specifications expand
or enlarge the scope of this Limited Warranty. There are no terms, promises, conditions or warranties regarding the
PRODUCT other than those expressly contained herein. WARRANTOR specifically does not authorize any person,
including but not limited to any dealer or other agent or employee of WARRANTOR, to extend the time, scope,
terms or conditions of this Limited Warranty or to create or assume for Warrantor any other obligation or liability
with respect to the Product or other products designed, manufactured or sold by Warrantor. All terms of this
Limited Warranty are contractual and not mere recitals, and constitute material terms of this Limited Warranty. It is
agreed and acknowledged that the provisions of this Limited Warranty allocate the risks between WARRANTOR and
PURCHASER, that WARRANTORs pricing reflects this allocation of risk, and but for this allocation and limitation of
liability, WARRANTOR would not have entered into this Limited Warranty.
WEB LINKS
For further information please visit our website: www.srsuntour-cycling.com.
There you will also find:
Service request:
http://www.srsuntour-cycling.com/service/service-request
Product registration:
http://www.srsuntour-cycling.com/service/product-registration
Tech videos:
http://www.srsuntour-cycling.com/service/tech-videos
Download area:
http://www.srsuntour-cycling.com/service/download-area
Owners manuals:
http://www.srsuntour-cycling.com/service/download-area/consumer-downloads/bike/owners-manuals/
Fork glossary:
http://www.srsuntour-cycling.com/service/fork-glossary
Warranty:
http://www.srsuntour-cycling.com/service/warranty
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INTENDED USE
RUX O
DUROLUX O
AURON O
AION O
EPIXON TR O
AXON werxF O
AXON werx O
AXON O
EPIXON9 O
RAIDON O
RAIDON32 650B+ O
XCR O
XCR32 650B+ O
XCR24 O
XCM O
XCM32 650B+ O
XCM28 24+ O
XCT O
XCT JR L O
XCT JR O
M3030 O
M3010 O
M3010 24/20 O
USE FOR USE FOR USE FOR USE FOR USE FOR
May be used for any Cross country, Trail Cross country, Trail Cross country Cross country
riding style and Enduro and All moutain racing and cross
country
DO NOT USE FOR DO NOT USE FOR DO NOT USE FOR DO NOT USE FOR
Down-hill Down-hill Down-hill, Enduro, Down-hill, Enduro,
All mountain All mountain, Cross
country racing
NCX-E45 O O O
MT-E45 O O O
NCX-E25 O O
NEX-E25 O O
CR85-E25 O O
NVX-HE-E25 O O
NRX O O
NVX O
NCX O O O
NEX O O
CR9 O O
CR8 O O
CR7 O
SwingShock O
M3030 O O
M3010 O O
M3010 24/20 O
USE FOR USE FOR USE FOR USE FOR USE FOR
E-bikes up to 45km/h E-bikes up to 25km/h Paved road or Paved road or Paved road
for on-road or for on-road casual off-road casual off-road
casual off-road
DO NOT USE FOR DO NOT USE FOR DO NOT USE FOR DO NOT USE FOR DO NOT USE FOR
Down-hill, Enduro, Down-hill, Enduro, Down-hill, Enduro, Down-hill, Enduro, Down-hill, Enduro,
All mountain, Cross All mountain, Cross All mountain, Cross All mountain, Cross All mountain, Cross
country racing, country racing, country racing, country racing, country racing,
Cross country Cross country Cross country Cross country Cross country
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SR SUNTOUR INC. (TAIWAN) SR SUNTOUR NORTH AMERICA
Riedstrasse 31
83627 Warngau, Germany MADISON, WISCONSIN
Tel: + 49 (0)8021 50 793-0 Warranty, Service, Sales and Marketing
E-Mail: service@srsuntour-cycling.com
910 Watson Avenue, Madison,
SAV SR Suntour France Wisconsin 53713 USA
Tel: 1-608-229-6610
Customer Support and Technical Services Service and warranty e-mail: service@
usulcorp.com
604 voie Galilee Sales e-mail: sales@usulcorp.com
73800 Sainte Hlne du Lac, France
Tel: +33 (0)981241650
Fax: +33 (0)479286971 ONLINE SALES
E-Mail: sav@srsuntour-cycling.com www.emarket.srsuntourna.com
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