Sherco's 290 is two good
By TMX Archives on 18th Feb 10
THE 2010 Sherco trials range represents a major milestone in the life of the relatively young Spanish company. The new models represent the first major redesign since the very first Sherco named Bultaco Sherco back then first hit the trials world in 1998.
There's been plenty of development work along the way of course, with new frames, suspension, swinging-arms etc along the way but the 2010 model, with the fuel tank and air-filter having switched positions, and the basic geometry having been totally re-thought to allow for the rear-mounted fuel tank, is a massive jump in evolution, especially in trials terms where major changes are few and far between.
Although there will be a full family of new models, all utilising the same chassis, including 125, 250 and 290 two-strokes plus the 320 four-stroke, the first batch off the production line were 290s. The 125 has since followed but as an initial intro, we got WOODY HOLE out on the big two-stroke in order to get a feel for the 2010 model...
SPECIFICATIONS
2010 model Sherco ST 2.9
ENGINE
Type: Liquid cooled, single cylinder two-stroke Sherco motor.
Capacity: 272 cc.
Bore x Stroke: 76 x 60 mm.
Cylinder: Nikasil coated cylinder.
Lubrication: Unleaded fuel with 2% oil pre-mix.
Carburettor: Dell'Orto PHPL26.
Transmission: 5 speed sequential gearbox with security selector system to prevent false shifts. Primary gear drive chain secondary drive.
Clutch: Hydraulically activated multi-disc in oil bath.
Ignition: Dual Map Leonelli progressive electronic ignition with a balanced magnetic flywheel.
Kick-start: Geared system with folding lever.
CHASSIS
Type: Tubular section Chrome-moly.
Fuel tank: Ergal aluminium with integrated fuel pump.
BRAKES
Front: Hydraulically actuated AJP, 185 mm floating disc.
Rear: Hydraulically actuated AJP, 145 mm disc.
SUSPENSION
Front: Ceriani 38 mm hydraulic telescopic fork, fully adjustable for pre-load & damping. Micro crom treatment on fork tubes.
Travel: 185 mm.
Rear: Progressive link system with single Olle adjustable shock.
Travel: 175 mm.
WHEELS
Front: Morad 21" black anodised aluminium rim and aluminium hub, steel spokes with Michelin tube-type tire.
Rear: Morad 18" black anodised aluminium rim and aluminium hub, steel spokes with Michelin tubeless tire.
ANCILLARIES
Exhaust: Steel header pipe with an integrated aluminium muffler.
Bash plate: Made from stamped heat treated Aluminium.
DIMENSIONS
Wheelbase: 1,322 mm.
Seat height: 645 mm.
Ground clearance: 310 mm.
Weight: 68 kg.
FOR FULL TEST SEE T+MX NEWS, FRIDAY, FEBRUARY 19, 2010
Specification:
