The Yamaha XT660Z motorcycle specifications include a 660 cc (40.27 cu in) engine, power of 46.9 hp (34.3 kW) @ 6,000 rpm, a 5-speed gearbox, and a listed weight of 208.5 kg (459.7 lb).
Key specifications
How the Yamaha XT660Z compares
This compares the motorcycle with all Yamaha models in this specifications database. The blue marker is this model and the grey line is the Yamaha database average.
About 12% lower than the Yamaha database average. Around the 55th percentile across Yamaha models.
About 20% higher than the Yamaha database average. Around the 68th percentile across Yamaha models.
About 12% heavier than the Yamaha database average. Around the 63rd percentile across Yamaha models.
About 13% taller than the Yamaha database average. Around the 90th percentile across Yamaha models.
About 76% larger than the Yamaha database average. Around the 96th percentile across Yamaha models.
Yamaha database percentile rankings
Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.
46.9 hp — more powerful than about 55% of Yamaha models with power data.
660 cc — larger displacement than about 68% of Yamaha models.
208.5 kg — heavier than about 63% of Yamaha models, or lighter than about 37%.
896 mm — taller than about 90% of Yamaha models.
23 L — larger than about 96% of Yamaha fuel tanks in this database.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
2,246
2,082
8% above average.
896
823
9% above average.
1,477
1,172
26% above average.
1,500
1,416
6% above average.
896
793
13% above average.
260
181
44% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 90/90-21 |
|---|---|
| Rear tire size | 130/80-17 |
| Front tire width | 90 mm |
| Front tire aspect ratio | 90% |
| Front rim diameter | 21 in |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 80% |
| Rear rim diameter | 17 in |
| Engine oil capacity | 2.90 L (3.06 US qt) |
| Power-to-weight ratio | 0.225 hp/kg |
| Power-to-weight | 224.9 hp/tonne |
| Specific power | 71.1 hp/L |
| Bore/stroke ratio | 1.19:1 (Oversquare) |
Model information
| Year released | 2018 |
|---|---|
| Category | Enduro / offroad |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 660 cc (40.27 cu in) |
| Power | 46.9 hp (34.3 kW) @ 6,000 rpm |
| Torque | 58.0 Nm (5.9 kgf-m or 42.8 ft.lbs) @ 5,920 rpm |
| Bore × stroke | 100.0 x 84 mm (3.9 x 3.3 inches) |
| Compression ratio | 10.0:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection. EFI |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | TCI |
| Starter | Electric |
| Lubrication | Dry sump |
| Oil capacity | 2.90 L (3.06 US qt) |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Frame | Steel tube diamond |
|---|---|
| Front suspension | Telescopic forks |
| Rear suspension | Linked monoshock with spring preload adjustment |
| Front wheel travel | 210 mm (8.3 inches) |
| Rear wheel travel | 200 mm (7.9 inches) |
| Rake | 28.0° |
| Trail | 113 mm (4.4 inches) |
Brakes, wheels and tires
| Front brakes | Double disc. Hydraulic |
|---|---|
| Rear brakes | Single disc. Hydraulic |
| Front tire | 90/90-21 |
| Rear tire | 130/80-17 |
Dimensions and weight
| Wet weight | 208.5 kg (459.7 lb) |
|---|---|
| Seat height | 896 mm (35.3 inches) |
| Overall length | 2,246 mm (88.4 inches) |
| Overall width | 896 mm (35.3 inches) |
| Overall height | 1,477 mm (58.1 inches) |
| Wheelbase | 1,500 mm (59.1 inches) |
| Ground clearance | 260 mm (10.2 inches) |
| Carrying capacity | Saddle bags. |
Fuel and emissions
| Fuel capacity | 23.00 L (6.08 US gal) |
|---|
Electrical and instruments
| Instruments | Analogue and digital |
|---|
Other specifications
| Color options | White/blue/gray |
|---|---|
| Seat | Dual seat |
| Comments | Windshield. |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.