
MZ 125 SX
Key specifications
Overview
Introducing the 2011 KTM 125 SX, a standout in the competitive realm of enduro-offroad motorcycles. Designed for both seasoned riders and those looking to hone their skills, the 125 SX is a lightweight, agile machine that strikes a perfect balance between power and precision. With its striking orange, black, and white color scheme, this bike not only looks the part but also embodies KTM's commitment to performance and innovation in the off-road segment. As a member of the renowned SX lineup, the 125 SX is engineered to dominate motocross tracks and rugged trails alike, making it a favorite among enthusiasts who crave the thrill of off-road adventures. At the heart of the 2011 KTM 125 SX is its spirited 124.80 ccm single-cylinder, two-stroke engine, designed to deliver exhilarating performance. With a bore and stroke measuring 54.0 x 54.5 mm, this powerplant is all about responsiveness. The Keihin PWK 38S AG carburetor ensures optimal fuel delivery, while the liquid cooling system keeps temperatures in check during intense rides. Coupled with a 6-speed gearbox and a wet double-disk clutch operated hydraulically, the 125 SX offers seamless gear transitions and the ability to harness its power effectively, allowing riders to tackle steep inclines and technical terrain with confidence. Whether you’re blasting through a straightaway or navigating tight corners, the bike’s lightweight build, tipping the scales at just 88.8 kg (195.8 pounds), allows for nimble handling and quick maneuverability. KTM has packed a host of features into the 125 SX that elevate the riding experience. The central double-cradle frame constructed from durable 25CrMo4 steel and an aluminum subframe provide a solid foundation without adding unnecessary weight. The WP USD 48 mm front forks and a WP PDS shock absorber offer 185 mm of travel both front and rear, ensuring that the suspension can absorb the toughest bumps and jumps with ease. Stopping power is provided by responsive single disc brakes, with a generous 260 mm diameter up front and 220 mm at the rear, giving riders the confidence to take on any terrain. The bike’s ground clearance of 385 mm (15.2 inches) and adjustable seat height of 992 mm (39.1 inches) further enhance its versatility, accommodating a wide range of rider preferences. **
Pros
- Lightweight Performance: Weighing just 88.8 kg, the 125 SX is incredibly nimble, making it easy to handle in challenging off-road conditions.
- Responsive Power Delivery: The two-stroke engine and well-tuned carburetor provide impressive acceleration and a thrilling ride experience.
- Advanced Suspension: With 185 mm of travel in both the front and rear suspension, the bike offers exceptional comfort and control over rough terrain.
Cons
- Limited Fuel Capacity: The 7.50-litre tank may require more frequent stops on longer rides compared to competitors with larger tanks.
- Kick Starter Only: While nostalgic for some, the absence of an electric start can be less convenient for riders in challenging situations.
- High Seat Height: At 992 mm, the seat height may be daunting for shorter riders, potentially affecting confidence and control.
Technical details
Source specification data
- Make
- KTM
- Model
- 125 SX
- Category
- Enduro-offroad
- Starter
- Kick
- Color Options
- Orange/black/white
- Clutch
- Wet
- m
- Double
- disk clutch, operated hydraulically
- Gearbox
- 6-speed
- Ignition
- Kokusan
- Driveline
- 13:50. Primary drive: 23:73.
- Fuel System
- Carburettor. Keihin PWK 38S AG
- Bore X Stroke
- 54.0 x 54.5 mm (2.1 x 2.1 inches)
- Displacement
- 124.80 ccm (7.62 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, two-stroke
- Exhaust System
- Aluminium
- Lubrication System
- Mixture oil lubrication 1:40
- Transmission Type Final Drive
- Chain
- Dry Weight
- 88.8 kg (195.8 pounds)
- Seat Height
- 992 mm (39.1 inches) If adjustable, lowest setting.
- Fuel Capacity
- 7.50 litres (1.98 gallons)
- Ground Clearance
- 385 mm (15.2 inches)
- Rake
- 26.5°
- Wheels
- 1.60 x 21in., 2.15 x 19in. Excel
- Rear Tyre
- 100/90-19
- Frame Type
- Central
- double-cradle-type 25
- Mo4
- .
- Subframe
- :
- Aluminium
- .
- Front Tyre
- 80/100-21
- Rear Brakes
- Single disc
- Front Brakes
- Single disc
- Rear Suspension
- WP PDS shock absorber
- Front Suspension
- WP USD 48 mm (1.89 in)
- Rear Wheel Travel
- 185 mm (7.3 inches)
- Front Wheel Travel
- 185 mm (7.3 inches)
- Rear Brakes Diameter
- 220 mm (8.7 inches)
- Front Brakes Diameter
- 260 mm (10.2 inches)