2010 Husqvarna TC450
General Specifications
| Model | Husqvarna TC450 |
| Year | 2010 |
| Category | Motocross |
| Engine Type | Single-cylinder, liquid-cooled, 4-stroke, DOHC, 4-valve |
| Weight | Approximately 105 kg dry |
Engine
| Displacement | 449 cc |
| Bore x Stroke | 97.0 x 60.76 mm |
| Compression Ratio | 12.9:1 |
| Fuel System | Keihin FCR-MX 41 mm flat-slide carburettor with accelerator pump and TPS | Replacement Options |
| Ignition | Digital electronic CDI with variable advance |
| Spark Plug | NGK CR8EB |
| Spark Plug Gap | 0.7 mm |
| Cooling System | Liquid cooled with water-pump circulation and twin radiators |
| Starting System | Kick starter with automatic decompressor |
Transmission
| Transmission | 5-speed constant-mesh manual |
| Clutch | Wet multi-plate, hydraulically operated |
| Final Drive | 520 chain; 14-tooth front / 50-tooth rear sprockets |
Dimensions
| Overall Length | 2207 mm |
| Overall Width | 820 mm |
| Overall Height | 1285 mm |
| Wheelbase | 1495 mm |
| Ground Clearance | 300 mm |
| Seat Height | 968 mm |
| Fuel Capacity | 7.2 L |
Chassis
| Frame | Chromium-molybdenum steel single-tube cradle frame with light-alloy rear subframe |
| Front Tyre | 80/100-21 | Tyre Size Guide |
| Rear Tyre | 110/90-19 | Tyre Size Guide |
Suspension
| Front Suspension | 48 mm Kayaba AOS upside-down sealed-cartridge hydraulic fork, adjustable for compression and rebound damping | Fork Oil Levels |
| Front Suspension Travel | 300 mm |
| Rear Suspension | Sachs Progressive Soft Damp hydraulic monoshock with linkage, adjustable for spring preload, high/low-speed compression and rebound damping |
| Rear Suspension Travel | 296 mm |
| Fork Oil | Kayaba fork oil to factory AOS fork specification |
Brakes & Wheels
| Front Brake | 260 mm wave-type hydraulic single disc with floating 2-piston caliper |
| Rear Brake | 240 mm wave-type hydraulic single disc with floating caliper |
| Front Wheel Size | 1.60 x 21 in light-alloy rim |
| Rear Wheel Size | 2.15 x 19 in light-alloy rim |
Service Data
| Fuel Type | Premium unleaded petrol, 98 RON recommended |
| Premix Information | Not applicable - 4-stroke engine |
| Gearbox Oil | Engine, gearbox and primary drive share wet-clutch-compatible 10W-50 or 10W-60 motorcycle oil; approximately 1.7 L with oil filter replacement |
| Air Filter | Oiled foam air filter |
| Service Notes | Competition motocross model. Change engine oil and filter frequently, clean and re-oil the air filter after dusty riding and regularly inspect valve clearances, cam-chain condition, hydraulic clutch, cooling system, drive chain, steering-head bearings, wheel bearings and suspension linkage. |
2010 Husqvarna TC450 – Kayaba Suspension for the Proven Italian 450
The 2010 Husqvarna TC450 was an evolutionary update rather than a completely new generation. The proven 449cc DOHC engine, five-speed motocross gearbox and steel-frame layout remained, but Husqvarna continued refining the chassis and suspension package to keep the TC450 competitive against increasingly sophisticated Japanese and European 450 motocross machines.
The engine retained its 97.0 x 60.76 mm bore and stroke and high 12.9:1 compression ratio, with fuel supplied by a 41 mm Keihin FCR-MX flat-slide carburettor. The FCR gives excellent response when correctly set up, but worn slides, accelerator-pump components and incorrect jetting can cause poor starting and hesitation. Owners rebuilding the original induction system can compare replacement carburettor options when required.
A significant chassis change for 2010 was the move to 48 mm Kayaba AOS sealed-cartridge forks. The Kayaba units provided approximately 300 mm of front-wheel travel and offered compression and rebound adjustment, while a Sachs linkage shock continued at the rear. The MXOwners fork oil reference is useful when servicing the original front suspension.
The TC450 remained a dedicated motocross machine, using a 21-inch front and 19-inch rear wheel, hydraulic disc brakes and no enduro lighting equipment in standard TC specification. Owners replacing aged tyres can compare the original 80/100-21 front and 110/90-19 rear dimensions with modern alternatives using the MXOwners tyre size guide.
For today's owner, maintenance history is especially important. Regular oil and filter changes, accurate valve-clearance checks, clean air filtration and inspection of the cam chain, hydraulic clutch and chassis bearings are essential. The 2010 TC450 was not a clean-sheet redesign, but the Kayaba suspension and continuing chassis development made it one of the more refined versions of Husqvarna's Italian-built carburetted 450 motocrosser.
