What category is the 2005 Yamaha TT-R 90 E?

The 2005 Yamaha TT-R 90 E has a Category of Enduro / offroad.

What is the engine size of the 2005 Yamaha TT-R 90 E?

The 2005 Yamaha TT-R 90 E has a Capacity: of 89.00 ccm (5.43 cubic inches).

What type of engine does the 2005 Yamaha TT-R 90 E have?

The 2005 Yamaha TT-R 90 E has a Engine type of Single cylinder.

Is the 2005 Yamaha TT-R 90 E air cooled or liquid cooled?

The 2005 Yamaha TT-R 90 E has a Cooling system of Air.

How many gears does the 2005 Yamaha TT-R 90 E have?

The 2005 Yamaha TT-R 90 E has a Gearbox of 3-speed.

What is the seat height of the 2005 Yamaha TT-R 90 E?

The 2005 Yamaha TT-R 90 E has a Seat height of 625 mm (24.6 inches) If adjustable, lowest setting..

Yamaha TT-R 90 E - 2005 Specifications and Reviews

Name: 2005 Yamaha TT-R 90 E
Brand: Yamaha

The 2005 Yamaha TT-R 90 E is a lightweight enduro designed for young and novice riders seeking affordable off-road capability. Its compact frame, low seat height, and manageable 89cc single-cylinder engine make it ideal for learning trail riding fundamentals. Known for reliability and ease of maintenance, this model remains a popular choice for entry-level off-road enthusiasts.

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General information
Category	Enduro / offroad
Year	2005
Model	Yamaha TT-R 90 E
Engine and Transmission Specifications
Transmission typefinal drive	Chain
Gearbox	3-speed
Cooling system	Air
Fuel control	SOHC
Fuel system	Carburettor
Bore x stroke	47.0 x 51.8 mm (1.9 x 2.0 inches)
Compression	8.5:1
Stroke	4
Engine type	Single cylinder
Capacity:	89.00 ccm (5.43 cubic inches)
Physical measures and capacities
Wheelbase	1,039 mm (40.9 inches)
Ground clearance	160 mm (6.3 inches)
Overall width	605 mm (23.8 inches)
Overall length	1,524 mm (60.0 inches)
Overall height	866 mm (34.1 inches)
Seat height	625 mm (24.6 inches) If adjustable, lowest setting.

Yamaha TT-R 90 E dimensions and frame
Rear brakes diameter	110 mm (4.3 inches)
Rear brakes	Expanding brake (drum brake)
Front brakes diameter	95 mm (3.7 inches)
Front brakes	Expanding brake (drum brake)
Rear tyre dimensions	90/100-14
Front tyre dimensions	70/100-19
Rear suspension travel	94 mm (3.7 inches)
Rear suspension	Single shock
Front suspension travel	109 mm (4.3 inches)
Front suspension	Telescopic fork
Speed and acceleration
Color options	Team Yamaha Blue/White
Fuel capacity	4.16 litres (1.10 gallons)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track5%

City15%

Cornering30%

Daily Riding10%

Touring5%

Passenger0%

Rider Profile

Best For	This is a youth-oriented trail bike designed for beginners, typically pre-teens or young teenagers just learning to ride off-road.
Purpose	It exists to introduce young riders to dirt biking on easy trails and open fields with minimal risk and simple, forgiving controls.
Rider Fit	Its very low seat height and light weight make it accessible to small, short-statured riders rather than full-sized adults.
Character	It behaves as a gentle, low-powered, easygoing trail companion with a low-stress 3-speed gearbox and mild engine character.
Not Ideal For	It is not suitable for adult riders, highway use, passengers, or anyone seeking speed, long-distance touring, or serious technical off-road performance.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2005 Yamaha TT-R 90 E Rider Ergonomics Assessment

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Inseam (optional)

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Feet:

At 625mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2005 Yamaha TT-R 90 E, with a cramped knee angle of around 50 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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