English, Maintenance work on chassis and engine – KTM 85 SX User Manual

Page 20

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ENGLISH

19

MAINTENANCE WORK ON CHASSIS AND ENGINE

»

Overview of the shock absorber springs

The spring rate is written on the outside of the spring (e.g. 40-215). The type

number of the shock absorber is embossed on the top.

The illustration on the left shows which spring should be installed. The stan-

dard spring is shown in bold print.

After installing a different spring, readjust the static sag to 30-35 mm.

According to our experience, the damping rate of the compression stage can

remain unchanged. The damping rate of the rebound stage can be reduced

by a few clicks for a softer spring or increased by a few clicks for a harder

spring.

Checking the basic setup of the telescopic fork

The precise riding sag of the telescopic fork cannot be determined for vari-

ous reasons. If your telescopic fork bumps frequently (hard end stop during

compression), you should install harder fork springs to avoid damaging the

telescopic fork and frame.

Overview of the telescopic fork springs

If your child weights less than 50 kg or more than 60 kg, have your KTM work-

shop mount suitable fork springs. The illustration on the left shows the cor-

rect spring rate. The standard spring is shown in bold print.

The type number of the telescopic fork is embossed on the inside of the fork

leg.

According to our experience, the damping rate of the compression stage can

remain unchanged. The damping rate of the rebound stage can be reduced

by a few clicks for a softer spring or increased by a few clicks for a harder

spring.

40

SPRING RA

TE

45

50

55

60

65

70

75

RIDERS WEIGHT INCLUSIVE GEARS IN KILOGRAM

Shock absorber

85 SX

35-215

45-215

40-215

40

SPRING RA

TE

45

50

55

60

65

70

75

RIDERS WEIGHT INCLUSIVE GEARS IN KILOGRAM

Front fork

85 SX

2,8 N/mm

3,2 N/mm

3,0 N/mm

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