Side by Side Motorcycle Specifications Comparison
Yamaha YZF-R125 vs Aprilia RS4 125
Run an instant motorcycle specifications comparison across 44,149+ models. Select any two bikes below to compare engine displacement, horsepower, torque, wet weight, seat height, motorcycle fit, brakes, suspension, and ownership factors side by side.
Overlay rider knee angle, torso lean, and traffic-stop foot reach for YZF-R125 vs RS4 125 using your exact height & inseam:
Head-to-Head Character Radar
| Spec | Yamaha YZF-R125 2016 | Aprilia RS4 125 2017 |
|---|---|---|
| Category | Sport | Sport |
| Year | 2016 | 2017 |
| Displacement | 124.7 ccm (7.61 cubic inches) | 124.8 ccm (7.62 cubic inches) ✓ |
| Power | 15.0 HP (10.9 kW) @ 9000 RPM | 15.0 HP (10.9 kW) @ 10500 RPM |
| Torque | 12.2 Nm (1.2 kgf-m or 9.0 ft.lbs) @ 8000 RPM ✓ | 10.9 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM |
| Gearbox | 6-speed | 6-speed |
| Final Drive | Chain (final drive) | Chain (final drive) |
| Front Suspension | Telescopic forks | Upside down hydraulic fork, 40 mm. |
| Rear Suspension | Linked monoshock with spring preload adjustment | Asymmetric swingarm with monoshock |
| Front Tyre | 100/80-17 | 110/80-17 |
| Rear Tyre | 130/70-17 | 130/70-17 |
| Front Brakes | Single disc. Optional ABS. Radial caliper with floating disc. | Single disc. Stainless steel disc with radial 4 piston calliper |
| Rear Brakes | Single disc. Optional ABS | Single disc. Single 30 mm piston |
| Dry Weight | 126.5 kg (278.9 pounds) | — |
| Wet Weight | 140.0 kg (308.6 pounds) ✓ | 145.0 kg (319.7 pounds) |
| Power/Weight | 0.1186 HP/kg | — |
| Seat Height | 818 mm (32.2 inches) If adjustable, lowest setting. | 820 mm (32.3 inches) If adjustable, lowest setting. |
| Fuel Capacity | 11.50 litres (3.04 US gallons) | 14.50 litres (3.83 US gallons) ✓ |
| Oil Capacity | 1.20 litres (1.27 US quarts) | 1.10 litres (1.16 US quarts) |
| Wheelbase | 1355 mm (53.3 inches) | 1350 mm (53.1 inches) |
| Ground Clearance | 155 mm (6.1 inches) | — |
| Engine Oil | SAE 10W-40 4T (API SL/SN / JASO MA2) | SAE 5W-40 Synthetic (API SL / JASO MA) |
| Spark Plugs | NGK CR8E / CPR8EA-9 | NGK CR8EB |
| Battery | 12V 6Ah / 7Ah (YTX7L-BS) | 12V 6Ah (YTX7L-BS) |
| Front Tire Pressure | 1.8 bar (26 psi) | 1.8 bar (26 psi) |
| Rear Tire Pressure | 2.0 bar (29 psi) | 2.0 bar (29 psi) |
Popular Motorcycle Comparisons
Click any matchup below to open a side-by-side motorcycle specifications comparison, including Indian Scout vs Chief, Indian Scout vs Bobber, and popular middleweight rivals.
Motorcycle Sport, Touring & Cruiser Differences Comparison
When comparing motorcycles across categories, numbers like horsepower and displacement tell only part of the story. Use this table to compare how sport, touring, cruiser, and naked motorcycles differ in ergonomics, seat height, weight, and real-world use.
| Category | Riding Posture & Fit | Typical Seat Height | Wet Weight Range | Power & Torque Character | Best Real-World Use |
|---|---|---|---|---|---|
| Sport Bikes | Forward lean, clip-on bars, high rearsets | 780 – 835 mm (30.7″ – 32.9″) | 165 – 208 kg | High-RPM horsepower, aerodynamic fairing, sharp braking | Canyon carving, track days, spirited weekend rides |
| Touring Motorcycles | Relaxed upright, full wind protection, spacious saddle | 755 – 840 mm (29.7″ – 33.1″) | 235 – 380+ kg | Broad midrange torque, 20L+ fuel tank, shaft or belt drive | Two-up highway travel, cross-country distance comfort |
| Cruisers & Bobbers | Low-slung seat, upright or forward footpegs | 649 – 720 mm (25.5″ – 28.3″) | 220 – 320 kg | Strong low-RPM V-twin or parallel-twin torque, relaxed gearing | Easy flat-foot stops, boulevard cruising, relaxed highway miles |
| Naked & Standards | Neutral upright bars, balanced peg placement | 775 – 815 mm (30.5″ – 32.1″) | 168 – 215 kg | Punchy low-to-midrange street torque, wide steering lock | Daily commuting, urban agility, all-around versatility |
Motorcycle Fit & Seat Height Comparison Guide
Evaluating motorcycle fit requires comparing three specs together: seat height (mm), wet weight (kg), and wheelbase. A narrow 790 mm twin-cylinder motorcycle is often easier to flat-foot at traffic lights than a wide 750 mm touring saddle.
- Compare your trouser inseam against the published seat height in our motorcycle seat height chart by rider height.
- Check dry/wet weight alongside seat height—every 20 kg of weight reduction noticeably improves low-speed balance.
- Review our optimal motorcycle fit guide before test-sitting your shortlist.
Motorcycle Comparison Questions
What motorcycle specifications should I compare first?
Start a motorcycle specifications comparison with category, displacement (cc), horsepower, torque RPM, wet weight, seat height, and wheelbase. Together these numbers reveal real-world acceleration, low-speed balance, and ergonomic fit.
What are the main differences in a sport vs touring vs cruiser motorcycle comparison?
Sport motorcycles prioritize light weight, high-RPM horsepower, sharp steering geometry, and forward-leaning ergonomics. Cruisers feature low seat heights (650–720 mm), relaxed feet-forward ergonomics, and low-end V-twin or parallel-twin torque. Touring motorcycles combine upright long-distance comfort, wind protection, large fuel capacity (20L+), and high payload capacity.
How do I compare motorcycle fit and seat height for my rider height?
Compare published seat height alongside wet weight and engine configuration. A narrow 790 mm twin-cylinder bike is often easier to flat-foot than a wide 750 mm inline-four or heavy touring model. Compare your inseam against the seat height spec before buying.
How do motorcycle specifications affect a motorcycle insurance comparison?
Insurers price policies largely by engine displacement (cc), category classification (supersport vs standard/cruiser), power-to-weight ratio, ABS availability, and replacement value. A 650cc standard or cruiser typically costs significantly less to insure than a 600cc supersport bike.
What is the difference between Indian Scout vs Chief and Indian Scout vs Bobber?
The Indian Scout uses a liquid-cooled V-twin (1,133 cc, ~100 HP) in a lighter ~256 kg chassis with a 649 mm seat height, whereas the Indian Chief uses an air-cooled Thunderstroke V-twin (1,811–1,890 cc) tuned for massive low-RPM torque in a heavier ~304 kg frame. The Scout Bobber shares the Scout platform with lower suspension, blacked-out bobber styling, and a slightly more forward riding posture.
Can I compare beginner motorcycles side by side here?
Yes. Search any two 125cc, 300cc, 400cc, or 500cc beginner motorcycles in Bike A and Bike B above to compare their seat height, wet weight, power delivery, and fuel capacity side by side.