Ohlins FF 522 Mounting Instructions

Ohlins FF 522 Mounting Instructions Front Fork universal kit for Harley-Davidson, Please note that during storage and transport,especially at high ambient temperature, someof the oil and grease used for assembly mayleak and stain the packaging. This will not cause damage to the product, wipe off the excessiveoil or grease with a cloth.

Wheel shaft
The wheel axle must fit exactly into the 32 mm bracket holes of the fork bottom pieces. If the axle has smaller dimensions, correct axle sleeves must be used. When fitting the wheel axle, apply some grease to the surfaces so the axle slides easilythrough the fork bottom pieces.

Fabrication
Use materials of high quality and adequate dimensions to fabricate sleeves, caliper brackets and fender brackets. The caliper bracket is mounted with M8 bolts and M6 bolts.The fender brackets are mounted with M5bolts.

Torque information

1. M8 bolts:19 Nm
2. M6 bolts:7 Nm
3. M5 bolts:4 Nm

Mounting recommendations
We recommend the mounting of the front fork to be performed by an authorized Öhlins dealer or by other skilled professional workshop.

Triple clamps
The fork triple clamps must be made withhigh accuracy and the fork leg mounts mustbe in an absolute straight line not to cause malfunctions.

Suspension fluid level diagram
The diagram below shows reaction forcecurves at two different fluid levels. A change in the fluid level will mainly affect the air spring force and rate at the end of the front fork travel.

High fluid level
The air spring in the later half stage of travel is stronger which makes the front fork firmer.

Low fluid level
The air spring in the later half stage of travelis lessened which makes the front fork more linear.
Adjust suspension fluid level.