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2025 Husqvarna FX 350 Heritage

Base

MSRP: $12,049

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Specs and Features

Engine

Primary drive

24:72

Transmission

6-speed

Battery capacity

2 Ah

Cooling

Liquid cooled

Secondary gear ratio

14:50

Starter

Electric starter

Stroke

57.5 mm

Bore

88 mm

Clutch

Wet multi-disc DS clutch, Brembo hydraulics

Compression ratio

14.6

Displacement

349.7 cm³

EMS

Keihin EMS

Design

1-cylinder, 4-stroke engine

Fuel-mixture generation

Keihin EFI, throttle body 44 mm

Chassis

Weight (without fuel)

104.4 kg

Tank capacity (approx.)

8.5 l

Wheelbase

1.493 mm

Front brake disc diameter

260 mm

Rear brake disc diameter

220 mm

Front brake

Disc brake

Rear brake

Disc brake

Chain

520 X-Ring

Frame design

Central double-cradle-type 25CrMo4 steel

Front suspension

WP XACT Closed Cartridge Ø 48 mm

Ground clearance

343 mm

Handlebar

Pro Taper, Aluminium Ø 28/22 mm

Rear suspension

WP XACT Monoshock with linkage

Seat height

954 mm

Silencer

Aluminium

Steering head angle

63.9 °

Rear subframe design

Aluminum-reinforced polyamide

Suspension travel (front)

300 mm

Suspension travel (rear)

300 mm

Tyre dimensions (front/rear)

80/100; 110/100

Wheels

1.60 x 21"; 2.15 x 18"

Wheelbase

1.493 ± 10 mm

FX 350 Heritage 2025

Continuing to offer the agility of a 250 with a peak power to rival a 450, the Heritage FX 350 delivers the perfect blend of rideability and proven performance. A new 6-speed gearbox with ratios designed for cross country racing, together with a specific engine map engaged in each gear, ensures every rider will benefit from a controllable power delivery at all speeds. Together with a new frame and updated suspension settings, an unrivalled riding experience is guaranteed. With the addition of a slightly taller and wider seat and ergonomic bodywork, including revised radiator shrouds, movement on the FX 350 remains effortless. New, Swedish-inspired graphics, applied using in-mold technology, provide a distinctive and long-last look.

Engine

The new FX 350 engine is designed to deliver maximum performance. For 2023, the repositioning of all major engine components and shaft arrangements enhances overall handling with the design improving anti-squat behaviour from the whole chassis. The engine is tilted two degrees backwards and is 8 mm shorter in height to further centralise mass. Weighing just 59.9 lb (27.2 kilograms), the new 350cc 4-stroke engine produces a higher and more usable power output.

Cylinder head

The DOHC cylinder head offers improved durability and serviceability, with diamond-like carbon (DLC) coated finger followers that guarantee minimal friction and optimal performance. These actuate large titanium valves, 36.3 mm for the intake and 29.1 mm for the exhaust, which optimise gas flow for strong, usable power across the rev-range, all the way up to the 13,400 rpm limit. Valve timings work in perfect harmony with the camshaft, which features a bearing bridge design for stiffness and easy serviceability.

Cylinder and piston

A large 88 mm bore and 57.5 mm stroke cylinder is professionally engineered from high-strength aluminium for maximum reliability, and houses the high performance forged bridged-box-type piston from CP. The compression ratio is 14.6:1 for exceptional torque and peak power. Engine response is strong thanks to optimised valve guides and valve shaft diameters that are precisely engineered using computational fluid dynamics (CFD).

2025 Husqvarna FX 350 Heritage

Specs and Features

FX 350 Heritage 2025

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