Storm V3 BRX 14/12 Manuel à 4 vitesses - Dirt Bike 125cc

A 125cc 4-stroke engine: Progressive power and durability

The heart of this 125cc Dirt Bike beats to the rhythm of a 125cc 4-stroke single-cylinder engine, developing 5 kW (approximately 6.8 hp) for a top speed of 70 km/h. Unlike 2-strokes, this unit offers a linear power curve, ideal for learning to handle manual gears without surprises. Its air cooling and open high-density foam air filter ensure excellent engine breathing, even in dusty conditions. RiderProShop Tip: To preserve performance, clean the air filter after each ride and use a 10W-40 semi-synthetic oil suitable for 4-stroke engines.

Manual 4-speed transmission: The school of off-road riding

The 4-speed manual gearbox of the Storm V3 BRX is a major educational asset. It allows riders to progressively master clutch control, gear changes, and engine speed management – essential skills for moving on to more powerful machines. The wet clutch system reduces wear and offers increased longevity, even with intensive use. Our recommendation: Start with sessions on flat terrain to familiarize yourself with the clutch's friction point before tackling slopes.

Hydraulic disc brakes: Safety and precision in braking

Safety is paramount on a 125cc Dirt Bike, especially for young riders. The Storm V3 BRX features front and rear hydraulic disc brakes, which are much more efficient than mechanical systems. This technology offers:

• Progressive braking: Hydraulic pressure allows precise control, avoiding unwanted wheel lock-ups.
• Resistance to overheating: The ventilated discs (Ø 220 mm front, 190 mm rear) effectively dissipate heat, even on technical descents.
• Increased durability: The calipers and pads are designed to withstand abrasion from muddy or sandy terrain.

RiderProShop Best Practices: Purge the hydraulic system every 6 months to avoid air bubbles, and check the pad thickness after 50 hours of use. Opt for semi-metallic pads for a perfect compromise between bite and longevity.

14/12 inch tires: Grip and versatility in all terrains

The knobby 14" front and 12" rear tires of this 125cc Dirt Bike are specially designed to grip loose surfaces (dirt, sand, mud) while providing good stability on rocky trails. Their soft rubber compound and aggressive tread pattern ensure:

• • Excellent traction during acceleration, even on steep climbs.
  • Effective self-cleaning: The spaced knobs quickly evacuate mud.
  • Good shock absorption thanks to reinforced sidewalls.

Terrain Tip: For optimal lifespan, check tire pressure (1.2 bar front / 1.5 bar rear) and rotate them regularly for even wear. In competition, opt for extra-soft compound tires (available in our store) for maximum grip.

Upside-down shock absorbers and adjustable suspension: Comfort and control in all conditions

The Storm V3 BRX stands out with its high-end suspension system, rare on a 125cc Dirt Bike:

• Aluminum upside-down fork: More rigid and precise than a conventional fork, it reduces flex and improves handling. Its preload adjustment allows you to adapt the firmness according to the rider's weight (up to 65 kg payload)
• Gas rear shock absorber: With compression and rebound adjustment, it absorbs violent shocks without excessive rebound. Ideal for jumps or rough terrain.
• Reinforced swingarm: Coupled with a chain and driveshaft protector, it minimizes the risk of breakage in case of side impact.

Recommended settings:

• Beginners: Opt for a soft suspension (minimal preload) for better comfort.
• Experienced riders: Increase the preload (+20%) for more responsive handling in tight corners.

Note: The seat height (61 cm) and the low width (33 cm) make it easy to handle, even for smaller riders.