Quick Analysis
JAWA 42 J
27.0 pts
Unweighted: 19 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
KTM 85 SX
9.5 pts
Unweighted: 5 advantages
EnginePerformanceDimensionsBrakesTyresFeaturesOther
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | Liquid Cooled | Liquid cooling (0.8L) |
| Displacement | 334 cc | 84.9 cc |
| Engine Type | Single Cylinder, 4 Stroke, Liquid Cooled, DOHC | 1-cylinder, 2-stroke engine |
| Power | 29.17 PS | 15.5 bhp @ 11500 rpm |
| Torque | 29.62 Nm | 14 Nm @ 8500 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 12 L | 5.2 L |
| Mileage | 32 kmpl | 25 kmpl |
Dimensions & Weight |
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| Kerb Weight | 184 | approx. 67 kg (without fuel) |
| Seat Height | 790 | 865 mm |
Brakes & Suspension |
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| ABS | Dual Channel ABS | — |
| Front Brake | Disc With Floating Caliper 320 mm | Disc 240 mm |
| Front Suspension | Telescopic Forks, Ø 41 mm | XACT 43 WP Upside-Down fork, Ø 43 mm |
| Rear Brake | Disc With Floating Caliper 240 mm | Disc 220 mm |
| Rear Suspension | Twin Shock Absorber With 5-step Adjustable Pre-load | XACT WP PDS mono shock |
Tyres & Wheels |
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| Front Tyre | 100/90-18, 56H | 70/100 - 17 |
| Rear Tyre | 140/70-17, 66H | 90/100 - 14 |
| Tyre Type | Tube | Tubed |
| Wheel Type | Spoke | Spoke |
Features & Technology |
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| Headlight | LED | — |
Other Specifications |
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| Battery | MF Battery | — |
| Bike Image 1 | https://motoautiv.com/wp-content/uploads/2025/11/42fjdeepblackmatteblackclad.webp | — |
| Bike Image 2 | https://motoautiv.com/wp-content/uploads/2025/11/42fjmystiquecopper.webp | — |
| Bike Image 3 | https://motoautiv.com/wp-content/uploads/2025/11/42fjcosmobluematte.webp | — |
| Color Options | Mystique Copper | #A65A2E Deep Black Matte Black Clad | #1A1A1A Aurora Green Matte | #1A1A1A Deep Black Matte Red Clad | #3F5D4A Cosmo Blue Matte | #2C4E6B | Orange |
| Cons | Limited modern features – Lacks advanced electronics, ride modes, or connectivity options. Reliability concerns – Some owners report minor mechanical or electrical issues. After-sales and parts availability – Service centers may be limited in some areas, and spare parts can be hard to get. Comfort limitations for long rides – Pillion seat and luggage capacity are limited; not ideal for long-distance touring. Moderate fuel efficiency – Real-world mileage may be lower than expected in heavy traffic or aggressive riding. | Not road legal and suitable only for off-road tracks. High maintenance due to 2-stroke engine rebuilds. Kick-start only, no electric start option. Relatively expensive compared to other youth dirt bikes. Small fuel tank limits long riding sessions. |
| Detailed Overview | The Jawa 42 FJ is built around a 334cc, single-cylinder, liquid-cooled engine that produces close to 29 bhp and around 29.6 Nm of torque, paired with a 6-speed gearbox. The engine uses fuel injection and also gets an assist and slipper clutch, which helps in smoother gear shifts during regular riding. The power delivery is tuned in a way that focuses on usable performance across different speeds rather than just top-end output. The bike is based on a double cradle frame, which supports its overall structure and contributes to stability while riding. It has a kerb weight of around 184 kg and comes with a 12-litre fuel tank. Seat height is close to 790 mm, making it accessible for most riders, while the ground clearance of around 178 mm helps in dealing with uneven roads and speed breakers. Suspension duties are handled by telescopic forks at the front and twin shock absorbers at the rear. This setup is commonly used in this segment and is designed to handle daily road conditions. The bike runs on an 18-inch front and 17-inch rear wheel combination, with tyre sizes that balance stability and grip during regular riding. Braking is managed through disc brakes at both ends, supported by dual-channel ABS as standard. The front disc is larger compared to the rear, which helps in providing controlled stopping. The braking setup is designed to work in different riding conditions without being overly sharp or aggressive. In terms of features, the bike includes a digital instrument console that displays basic riding information like speed, trip details and fuel level. It also comes with LED lighting elements, Bluetooth connectivity, and a USB charging port, which add to everyday usability. These features are kept fairly simple and focused on essential functions rather than adding too many extra elements. Overall, the Jawa 42 FJ feels like a well-rounded partner on two wheels. It doesn’t demand constant attention or aggressive riding, but it rewards smooth, thoughtful throttle control and confident road use. For someone looking for a neo-classic bike that’s equally at home in city traffic and on open highways, it’s a choice that marries character with practicality. | The KTM 85 SX is one of the most popular and respected youth motocross bikes in the world, designed specifically for young riders who are ready to take the next big step toward competitive racing. More than just a beginner’s off-road bike, the 85 SX brings true race-bred DNA from KTM’s full-size SX lineup, giving upcoming racers the opportunity to experience high-level performance at an early age. With its sharp power delivery, lightweight design, and premium components, the bike is built to help young riders improve skills and confidently tackle motocross tracks. At the heart of the KTM 85 SX lies its 84.9cc 2-stroke, liquid-cooled engine, which is known for delivering punchy power and rapid acceleration. The powervalve system ensures that the engine produces strong torque across the rev range, making the bike easier to control while still offering impressive performance. Whether riders are attacking tight corners or hitting long straights, the engine responds crisply and delivers the thrilling character 2-strokes are known for. Paired with a 6-speed gearbox, the bike offers smooth shifting and plenty of flexibility for both beginners and experienced youth racers. One of the standout features of the 85 SX is its lightweight chassis, made with high-strength chromoly steel. This frame not only enhances stability but also ensures precise handling, allowing riders to maneuver confidently through jumps, whoops, and rough terrain. The ergonomics are thoughtfully designed to fit young riders, offering a slim body that allows easy movement, better grip, and improved control during aggressive riding. Suspension is another area where KTM excels, and the 85 SX is no exception. It comes equipped with WP XACT suspension, featuring an AER air fork at the front and a fully adjustable shock absorber at the rear. This setup provides excellent damping, great response on jumps, and impressive support on uneven surfaces. Riders can also fine-tune the suspension to match their weight, riding style, and track conditions — something rarely seen in youth motocross bikes. The bike also features powerful disc brakes on both ends, giving young riders the confidence to brake hard into corners. The wave-style discs help with heat dissipation, which is especially important during long practice sessions or competitive races. Lightweight wheels, grippy motocross tyres, and a race-focused design further enhance the overall performance package. In terms of ergonomics, the KTM 85 SX is designed to feel like a miniature version of the bigger SX bikes. The seat height, handlebar position, and narrow bodywork all work together to provide comfort while promoting proper riding posture. This allows young riders to develop good habits early in their riding journey. Overall, the KTM 85 SX is a bike built for serious young racers who want real performance, durability, and race-ready features. With its responsive engine, excellent suspension, strong brakes, and lightweight build, it stands out as one of the top choices in the youth motocross segment. Whether used for training or competition, the 85 SX gives riders a true taste of professional motocross performance. |
| Expert Review | The Jawa 42 FJ follows a design that stays close to the usual Jawa style, with a simple tank shape, minimal bodywork and a clean overall look. The riding position is upright and easy to get used to, with a comfortable reach to the handlebar and a seat height that works for most riders, though the seat can feel firm on longer rides. Its single-cylinder, liquid-cooled engine responds quickly at lower speeds, making it suitable for city use, but it feels slightly strained when pushed harder. The gearbox works in a consistent manner, although mild vibrations can be noticed at higher revs. Handling is predictable, with stable movement in straight lines and easy control in traffic, while the suspension feels a bit stiff over rough patches. Braking setup depends on the variant, and while it performs its function, the feel at the lever may take some time to get familiar with., 3.9, MotoAutiv Team | MotoAutiv Team |
| FAQ (Manual Override) | Q: What is the Jawa 42 FJ? A: It is a modern-styled version of the Jawa 42 with a brushed-metal tank, sporty detailing, and a more premium, neo-retro look. Q: What engine does the Jawa 42 FJ use? A: It uses a 334cc, liquid-cooled, single-cylinder DOHC engine. Q: How much power and torque does it produce? A: It delivers around 29.17 PS of power and 29.62 Nm of torque. Q: What is the mileage of the Jawa 42 FJ? A: Real-world mileage is around 28–32 kmpl depending on riding style. Q: Does the Jawa 42 FJ have a 6-speed gearbox? A: Yes, it comes with a 6-speed constant-mesh gearbox and a slipper clutch. Q: Does the Jawa 42 FJ come with ABS? A: Yes, it features dual-channel ABS for safer braking. Q: What is the seat height of the Jawa 42 FJ? A: The seat height is approximately 790 mm, making it comfortable for most riders. Q: What is the kerb weight of the bike? A: The Jawa 42 FJ weighs around 184 kg. Q: What is the fuel tank capacity? A: It has a 12-litre fuel tank. Q: Is the Jawa 42 FJ good for daily commuting? A: Yes, its smooth engine and comfortable ergonomics make it great for daily use. Q: Is the Jawa 42 FJ suitable for long rides? A: Yes, the stable frame, 6-speed gearbox, and comfortable seating make it capable of touring. Q: What type of brakes does it use? A: It comes with front and rear disc brakes paired with dual-channel ABS. Q: What are the tyre sizes of the Jawa 42 FJ? A: 100/90-18 at the front and 140/70-17 at the rear. Q: What makes the FJ edition different from the regular Jawa 42? A: The FJ gets a brushed-aluminium tank finish, sportier styling, and a more modern premium look. Q: What is the approximate price of the Jawa 42 FJ? A: The ex-showroom price starts around ₹1.93 lakh and varies by location. | Q: What is the mileage? A: The mileage is around 18–20 kmpl (may vary as it’s an off-road motocross bike). Q: What is the engine capacity? A: The KTM 85 SX comes with an 84.9 cc 2-stroke engine. Q: What is the seat height? A: The seat height is approximately 850 mm. Q: What is the top speed? A: The top speed is around 110 km/h, depending on rider and terrain. Q: Does the KTM 85 SX have electric start? A: No, it comes with a kick-start mechanism. Q: What is the fuel tank capacity? A: The fuel tank capacity is 5.2 liters. Q: Is the KTM 85 SX road legal? A: No, it is not road legal as it is designed specifically for motocross/off-road racing. Q: What type of brakes does it have? A: It features disc brakes at both front and rear. Q: Is the KTM 85 SX suitable for beginners? A: It is ideal for youth riders transitioning to higher-powered bikes, but not recommended for complete beginners. Q: What is the weight of the bike? A: The bike weighs approximately 68 kg (dry weight). |
| Fuel System | Electronic Fuel Injection | — |
| Price Variants | Dual Channel Aurora Green Matte Spoke | 193725 Dual Channel Aurora Green Matte | 194950 Dual Channel Cosmo Blue Matte | 198334 Dual Channel Mystique Copper | 198334 Dual Channel Deep Black Matte Red Clad | 204950 Dual Channel Deep Black Matte Black Clad | 204950 | | 669000 |
| Pros | Retro-modern styling – Classic look with modern touches makes it stand out. Decent engine performance – The 294 cc engine with 6-speed gearbox provides good acceleration and city/highway usability. Comfortable ergonomics – Low seat height and upright riding stance make it accessible for most riders. Blend of old-school charm + modern basics – Features like disc brakes, ABS, and alloy/spoke wheel options balance nostalgia with practicality. Fun to ride – Lightweight and responsive, ideal for weekend rides or casual city commuting. | Powerful 2-stroke engine with strong mid-range performance. Lightweight chassis for excellent handling on tracks. Premium WP suspension for smooth jumps and rough terrain. Strong disc brakes offering sharp stopping power. Race-ready ergonomics designed for young motocross riders. |
| Starter | Self Start | Kickstarter |
| Transmission | 6–Speed | 6 Speed Manual |
