KTM 450 SX-F 2023 User Manual

TUNING THE CHASSIS 10
43
F03627-10
Main work
–
Loosen screw
1
.
–
Turn adjusting ring
2
until the spring is no longer under ten-
sion.
Hook wrench (90129051000)
Info
If the spring cannot be fully released, the spring must
be removed to accurately measure the spring length.
– Measure the total spring length while the spring is not under
tension.
–
Tension the spring by turning adjusting ring
2
to specified
dimension
A
.
Guideline
Spring preload (SX‑F EU) 8 mm (0.31 in)
Spring preload (SX‑F US) 8 mm (0.31 in)
Spring preload (XC‑F US) 8 mm (0.31 in)
Spring preload (Factory Edi-
tion)
8 mm (0.31 in)
Info
Depending on the static sag and/or the riding sag, it
may be necessary to increase or decrease the spring
preload.
–
Tighten bolt
1
.
Guideline
Screw, shock
absorber adjusting
ring
M5 5 Nm (3.7 lbf ft)
Finishing work
– Install the shock absorber. ( p. 69)
– Check the free travel of the foot brake lever. ( p. 99)
– Remove the motorcycle from the lift stand. ( p. 53)
– Install the main silencer. ( p. 77)
10.11 Adjusting the riding sag
Preparatory work
– Remove main silencer. ( p. 76)
– Raise the motorcycle with a lift stand. ( p. 53)
– Remove the shock absorber. ( p. 68)
– After removing the shock absorber, clean it thoroughly.

KTM 450 SX-F 2023 Specifications

General

Engine Type	Single-cylinder, 4-stroke
Displacement	449.9 cc
Bore x Stroke	95 mm x 63.4 mm
Starter	Electric starter
Compression Ratio	13.1:1
Transmission	5-speed
Final Drive	Chain
Cooling	Liquid-cooled
Frame	Central Double-Cradle Type 25CrMo4 Steel
Front Suspension	WP XACT-USD, Ø 48 mm
Rear Suspension	WP XACT Monoshock with linkage
Ground Clearance	370 mm
Fuel System	Keihin EFI, 44 mm
Front Brake	260 mm disc
Rear Brake	220 mm disc
Fuel Tank Capacity	7.2 L