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Yamaha IT 175 The International Trial

Yamaha IT 175 The International Trial

Yamaha IT175 , The IT Is stands for 'International Trial' And this IT Bikes produced by Yamaha during the 1970s and 1980s. The Engine was developed from the Yamaha YZ range of competition motocross bikes with modifications for use in enduro competition and trail riding.

The bike uses an air-cooled, two-stroke, single-cylinder engine with pre-mixed fuel. It is Non Electric start Just kick start only.
Yamaha IT 175 The International Trial
Yamaha IT 175 The International Trial

The IT bikes were designed and sold as enduros and can still be plated and registered today, provided you make the necessary modifications to the tail light. Another option is to get a historical plate and use the old brake signal along with your other hand signals for turning.

Other bikes in the IT range include IT125, IT200, IT250, IT425, IT465 and IT490.

The IT range was superseded by the WR (Wide Ratio) in 1991 with the introduction of the WR200, and the WR250 in 1993.

The Environmental Protection Agency (EPA) invoked new regulations restricting Two Strokes in the early 2000s and new rules were set by the American Motorcycle Association (AMA) which set the path for the development of the less powerful four-stroke engines dominate in the sport today. 

Yamaha IT175 Specs

Yamaha IT 175 G/H Specification

  • Year 1980-81
  • Frame/Engine Prefix (XXX-000101) 3R6/4J0
  • Engine Type 2 stroke
  • Bore (mm) 66
  • Stroke (mm) 50
  • Capacity (cc) 171
  • Compression Ratio (to 1) 7.9
  • Bhp @ rpm 19.86 @ 8,000
  • Torque (kgm) @ rpm 1.88 @ 7,500
  • Oil System Pre Mix
  • Engine Cooling Air
  • Carburetor (mm) VM32SS
  • Ignition System CDI
  • Ignition Timing (mm) -
  • Primary drive gearing 3.06
  • Final Drive Gearing 44/12
  • Box Gearing first 3.09
  • Box Gearing second 2.08
  • Box Gearing third 1.50
  • Box Gearing fourth 1.19
  • Box Gearing fifth 1.00
  • Box Gearing sixth 0.82
  • Fuel Cap. (liters) 11
  • Engine Oil Cap. (liters)
  • Gearbox Oil Cap. (Liters) 0.7
  • Fork Oil Ca. (cc/leg)
  • Front Tire (stock) 3.00 X 21
  • Rear Tire (stock) 4.10 X 18
  • Front Brake SLS DRUM
  • Rear Brake SLS DRUM
  • Rear Suspension Monoshock
  • Front Susp. Travel (mm) 250
  • Rear Susp. Travel (mm) 250
  • Rake (degrees) 28.5
  • Trail (mm) 122
  • Width (mm)
  • Ground Clearance (mm) 290
  • Wheelbase (mm) 1420
  • Dry Weight (kg) 93.5


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