Road & Track 30 mm Front Fork Cartridge Kit Owner’s Manual
Öhlins Headquarters Upplands Väsby, Sweden Öhlins Racing AB - The Story It was the 1970’s, a young man named Kenth Congratulations! You are now the owner of an Öhlin spent most of his spare time pursuing his Öhlins product. More than two hundred World favourite sport: motocross. Championships and other major world titles Being a careful observer, Kenth’s attention was continuously drawn to one specific detail - are definitive proof that Öhlins products offer outstanding performance and reliability.
SAFETY PRECAUTIONS General Warnings SAFETY SYMBOLS In this manual, mounting instructions and other technical documents, important information concerning safety is distinguished by the following symbols: 11 Note! The shock absorber/front fork/steering damper is an important part of the vehicle and will affect the stability. 11 Note! The Safety Alert Symbol means: Warning! Your safety is involved.
CONTENTS Safety precautions............................................. 3 Contents............................................................ 4 1 Front Fork Cartridge Kit.................................. 5 2 Design and Function....................................... 6 3 Setting up your Front Fork............................ 10 4 Adjustments.................................................. 11 5 Change Spring and check/Change oil level.. 13 6 Technical Specifications................................
1 FRONT FORK CARTRIDGE KIT Introduction The product in your hand is an artwork, Our engineers that work on a daily basis with prepared by our dedicated craftsmen at the top riders in the world often hear the word our facility in Upplands Väsby, Sweden. “feeling” and “control” when they debrief after Its predecessors have battled their way on tests and races.
2 DESIGN AND FUNCTION The front fork cartridge kit is divided into The compression and the rebound pistons are one compression cartridge and one rebound both of the same design. The pistons have three cartridge. The compression cartridge is installed flow paths for the fluid: in the left front fork leg and the rebound 1. cartridge in the right front fork leg. Marked at the Bleed valve (Fig. 3 centre gray arrows).
2 DESIGN AND FUNCTION Fig. 2 - Schematic View Compression Front Fork Leg Rebound Front Fork Leg Cylinder tube holes Shim stack Check valve Piston Piston Check valve Shim stack Cylinder tube holes Fig.
2 DESIGN AND FUNCTION Compression damping Rebound damping Compression front fork leg Rebound front fork leg When movement of the motorcycle causes When the spring forces the front fork to extend compression of the front fork (Fig. 4 again (Fig.
2 DESIGN AND FUNCTION Fig. 4 - Front Fork Oil Flow Compression Movement Compression Front Fork Leg Fig.
3 SETTING UP YOUR FRONT FORK ⚠⚠ Warning! Recommended Measures Before riding, always ensure that the basic settings made by Öhlins are intact. Take notes, adjust in small steps and make only one adjustment at a time.
4 ADJUSTMENTS 4.1 - Adjusters • Spring preload adjuster Use a 14 mm wrench to turn the upper Spring preload adjuster adjustment screw. Maximum adjustment range is 18 mm. One turn of the adjustment screw will cause 1 mm change in spring preload. • Compression damping adjuster Left front fork leg. • Rebound damping adjuster Right front fork leg. Adjust Compression and Rebound; Use a 3 mm allen key.
4 ADJUSTMENTS 4.3 - Oil Level Compared to conventional type of front forks, Öhlins Front Fork Fluid the upside down front forks are very sensitive to variations in oil level. Therefore, adjust the oil level with special care. A change in the front fork oil level will not affect the air spring force in the early stage of the movement, but will have a greater effect in the later stage. When the oil level is raised: The air spring in the later half stage of travel is stronger, and thus the front fork harder.
5 CHANGE SPRING AND CHECK/ CHANGE OIL LEVEL ⚠⚠ Warning! This procedure requires high technical knowledge and/ or experience of working with front forks. If you feel any insecurity regarding this procedure, contact an Öhlins dealer for advice. See the Vehicle Service Manual. 1 11 Note! The following procedure is performed on front fork legs installed in the vehicle. 2 1 Release the spring preload fully (counter clockwise). 2 3 Loosen the upper triple clamp by loosening the screws.
5 CHANGE SPRING AND CHECK/ CHANGE OIL LEVEL 6 The marking facing up. 6 Put the preload tube and the spring on top of the cartridge. See available springs in chapter Technical Specifications. 7 7 Fasten tool 01765-03 on the top of the shaft Tool 1765-03 extension. Install the spring support by leading it Spring support over the tool. 8 Pull up the shaft assembly and grab the spring Preload tube support with a 19 mm wrench. 9 Open the compression and rebound adjusters fully.
6 TECHNICAL SPECIFICATIONS Front Fork length Available Springs: See specification card for your specific Front Part No. Spring Rate Fork Cartridge Kit. 08790-65 6.5 N/mm 08790-70 7.0 N/mm 08790-75 7.5 N/mm 08790-80 8.0 N/mm 08790-85 8.5 N/mm Free spring length 08790-90 9.0 N/mm 260 mm 08790-95 9.5 N/mm 08790-10 10.0 N/mm 08790-05 10.5 N/mm 08790-11 11.0 N/mm 08790-15 11.5 N/mm Stroke See specification card for your specific Front Fork Cartridge Kit.
Owner’s Manual | Part No. 07284-01_3 | Issued 2019-05-21 | © Öhlins Racing AB Your Öhlins retailer: Öhlins Racing AB Box 722 SE-194 27, Upplands Väsby Sweden Phone: +46 (0)8 590 025 00 Fax: +46 (0)8 590 025 80 www.ohlins.
