ST 250

Significant design work was done to improve the chassis, giving it a new personality. The work done by the Sherco engineers is a major step forward for current and future developments. The main feature is a new frame that is made entirely out of Chrome-Molybdenum steel that combines laminated steel tubes along with sheet metal plates that are all welded together to create the new frame. This configuration was selected after endurance and performance tests to prove its strength, flexibility and lightweight.

This new configuration includes repositioning the fuel tank, it is now in the forward position and the airbox is now in the center position. Therefore, the exhaust has been reviewed and redesigned in order to improve performance at low engine speeds and provide a smoother evacuation of the exhaust gas.

The adjustments that have been made to the size of the available engines has allowed the character of the range to be refined. The 300 is the weapon of choice for competitors and experienced riders, who want a demanding and powerful motorcycle. The 250 meanwhile is reserved for intermediate riders who are looking for a certain sweetness in acceleration and an easier bike to ride.

2016 Evolutions


  • Surflex R clutch
  • Improved sealing of the carburetor inlet connection
  • Silencer evolution
  • Exhaust manifold strengthened
  • Reinforced gear selector lever
  • Improved kick starter lever fixation


  • New chassis
  • New engine guard design
  • New air filter box
  • New rear fender
  • Tech Fork
  • R16V shock
  • Anodized alloy wheels

Data Sheet

Engine 2 strokes Sherco proprietary design
Engine size 249.70 cc (15.24 cu in)
Bore & Stroke 72.80 x 60 mm (2.87 x 2.36 in)
Fuel system
Cylinder lubrication
Cylinder Nikasil coated cylinder
Lubrication 2% oil pre-mix
Fuel Unleaded gasoline 98 Octane
Carburetor Keihin Ø 28 mm (1.10 in)
Cooling Liquid system
Start Geared system with folding lever
Exhaust Steel header pipe with an integrated aluminum muffler
Systeme Allumage
Transmission 5 speed sequential gearbox with security selector system to prevent false shifts. Primary gear drive chain secondary drive
Clutch Hydraulically activated multidisc in oil bath
Ignition Hidria digital
Frame Tubular section Chrome-moly
Fuel Tank Polyamide – 2.4 L (0.63 US Gal) capacity
Brakes Hydraulically activated, floating Ø 185 mm (7.28) in front and Ø 145 mm (5.71 in) rear
Front suspension Tech Ø 39 mm (1.54 in) hydraulic telescopic fork, 165 mm (6.50 in) travel
Rear suspension Progressive link system with single adjustable shock absorber, 175 mm (6.89 in) travel Rear shok
Rear shock absorber R16V
Front wheel Morad 21” graphit anodized aluminum rim and aluminum hub with tube-type tire
Rear wheel Morad 18” graphit anodized aluminum rim and aluminum hub with tubeless tire
Weight 68 kg (149.91 lb)
Wheelbase 1322 mm (52.05 in)
Ground clearance 310 mm (12.20 in)
Seat height 685 mm (26.97 in)