Öhlins Shock absorber for Automotive
TTX FLOW
Owner’s Manual
Öhlins Headquarters Upplands Väsby, Sweden
Öhlins Racing AB - The Story
It was the 1970’s, a young man named Kenth Öhlin spent most of his spare time pursuing his favourite sport: motocross.
Being a careful observer, Kenth’s attention was continously drawn to one specific detail - motocross bikes had more engine power than their suspension could handle. It was not long before Kenth realised that better performance could be achieved by improved wheel suspension.
Öhlins Racing was established in 1976, and just two years later the company won its first
World Championship title. Despite being in the business for almost 40 years, the search for perfection and new functions is still the main focus of the company.
Congratulations! You are now the owner of an Öhlins product. More than two hundred World Championships and other major world titles are definitive proof that Öhlins products offer outstanding performance and reliability.
Every product has gone through rigorous testing and engineers have spent thousands of hours, doing their very best to use every possible experience from our almost 40 years within the racing sport.
The product that you now have in your possession is pure racing breed that is built to withstand.
By installing this product on your vehicle you have made a clear statement… you are a serious rider or driver with a focus on getting the maximal handling ability and outstanding feedback from your vehicle. Along comes the fact that your Öhlins product will be a long
lasting friend, delivering the very best of comfort and performance every time you go for a ride. Go explore!
SAFETY PRECAUTIONS
General Warnings
11 Note!
The shock absorber/front fork/steering damper is an important part of the vehicle and will affect the stability.
11 Note!
Read and ensure you understand the information in this manual and other technical documents provided by Öhlins, before using the product.
11 Note!
Öhlins Racing AB can not be held responsible for any damage to the shock absorber/front fork/steering
damper, vehicle, other property or injury to persons, if the instructions for mounting, usage and maintenance are not followed exactly.
Warning!
After installing the Öhlins product, take a test ride at low speed to ensure your vehicle has maintained stability.
Warning!
If the suspension makes an abnormal noise, or the function is irregular, or if you notice any leakage from the product, stop the vehicle immediately and return the product to an Öhlins dealer.
SAFETY SYMBOLS
In this manual, mounting instructions and other technical documents, important information concerning safety is distinguished by the following symbols:
The Safety Alert Symbol means: Warning! Your safety is involved.
Warning!
The Warning Symbol means: Failure to follow warning instructions can result in severe or fatal injury to anyone working with, inspecting or using the shock absorber, or to bystanders.
Caution!
The Caution Symbol means: Special precautions must be taken to avoid damage to the shock absorber.
11 Note!
The Note Symbol indicates information that is important regarding procedures.
11 Note!
When working with the Öhlins product, always read the vehicle service manual.
Warning!
The product warranty shall only apply if the product has been operated and maintained in accordance with recommendations in this manual. If you have any questions regarding usage, service, inspection and/or maintenance please contact Öhlins.
11 Note!
This manual shall be considered as a part of the product and shall accompany the product throughout its life cycle.
Warning!
This product was developed and designed exclusively for a specific vehicle model and shall only be installed on the intended vehicle model in its original condition as delivered from the vehicle manufacturer.
Warning!
This product contains pressurized nitrogen gas (N2). Do not open, service or modify this product without proper education (Öhlins dealer) and proper tools.
© Öhlins Racing AB. All rights reserved.
Any reprinting or unauthorized use without the written permission of Öhlins Racing AB is prohibited.
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CONTENTS
Adjustment and setting up.............................. |
4 |
Spring preload & Set-up................................. |
5 |
Compression and rebound............................. |
6 |
How to adjust.................................................. |
7 |
inspection and maintenance........................... |
8 |
Set-up sheet................................................... |
9 |
Congratulations on choosing the Öhlins TTX shock absorber - the most unique and powerful racing shock absorber available today. The TTX shock absorber design is the culmination of five decades of Öhlins successful participation in World Championship events.
This shock absorber draws on all the expertise developed by Öhlins while winning more than 350 World championship titles.
The Öhlins TTX features a patented concept with a unique concentric twin tube design, that allows for the gas pressure to always backup the low pressure side of the main piston. This design creates positive pressure build up on both compression and rebound stroke. As a result the TTX has a more direct damping response, less risk for cavitation and works with lower gas pressure. With the new Flowtechnology we redesigned the ‘check-valve’ system to balance wide valve openings and quick open/close actions to handle a large volume of oil flow. This gives the car improved traction, comfort and predictability which enhance the stability of the car.
Compared to a regular piggy back single tube shock absorber, that has positive pressure build up only on rebound stroke and relies on
compression valve resistance together with gas pressure to avoid cavitation on compression stroke, the TTX design is superior.
The TTX Flow shock absorbers are designed to handle the demanding damping
characteristics needed for all types of surfaces. For best performance, the shock absorber must be adjusted to different driving conditions; for the smooth and fast gravel roads in Finland or the rougher roads in Greece or in the Middle East. Temperature stability is maintained by
a flow restriction design in the bleed valves that creates a turbulent flow at very low piston velocities. Also, materials with different thermal expansion rates are used to compensate for the viscosity change of the fluid caused by changes in temperature.
In addition the Öhlins shim system offers infinite combinations of shim stacks, with a wide spectrum of different character using the same piston. The whole system is pressurized by nitrogen gas behind a floating piston to ensure separation of the gas and fluid.
The Öhlins TTX Flow shock absorber are racer friendly shock absorbers, easy to set up, dial in and rebuild. Remember that you can always get support from the Öhlins dealers worldwide.
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