Derbi GPR 125 RACING 4V (4-stroke) (2010) — Specs
Identity
Manufacturer: Derbi
Model: GPR 125 RACING 4V (4-stroke)
Category: Motorcycle
Type: Motorcycle
Years: 2010 →
Engine
Displacement (cc): 125
Cylinders: 1
Power (hp): 15
Power (kW): 11
Torque (Nm): 11
Dimensions
Overall length: 1980 mm
Overall width: 720 mm
Overall height: 1100 mm
Wheelbase: 1340 mm
Ground clearance: 155 mm
Weight (kg): 135
Seat height (mm): 800
Tank (L): 13
Tires
Front pressure (bar): 1.9
Rear pressure (bar): 2
Drivetrain
Drive chain: 420 chain, 130 links
Sprockets (front / rear): 14 / 49
Ignition
Spark plug: NGK CR8EB
Plug gap: 0.8 mm
Fluids & Filters
Engine oil: SAE10W-40, API SJ
Engine oil (with filter, L): 1.15
Oil filter: Hiflofiltro HF563
Coolant (L): 1.1
Brake fluid: DOT 4
Fuel consumption
Estimated range: ~433 km on a full tank (13.0 L)
Service
Service interval (km): 6000
Service interval (months): 12
Valve check (km): 12000
Parts and consumables for this motorcycle
Data is gathered with care, but without guarantee. Always confirm critical information with your dealer or workshop.
Service notes
Service interval: every 6,000 km or 12 months, whichever comes first. Valve clearance check every 12,000 km. Valve clearance — intake cold 0.12-0.15 mm, exhaust cold 0.15-0.20 mm. Engine oil: oil grade SAE10W-40, API SJ, 1.15 L with filter change. Spark plug: NGK CR8EB (gap 0.8 mm). Brake fluid: DOT 4. Coolant capacity: 1.1 L. Chain: 130 links, sprockets 14/49 teeth. Tire pressure: front 1.9 bar, rear 2 bar (cold). Always confirm critical values with the workshop manual or an authorised dealer.
OEM and quality aftermarket parts that fit this bike. Always confirm with your dealer before ordering.
Engine oil
Spec: SAE10W-40, API SJ, 1.15 L (with filter)
- OEM OEM recommended engine oil (SAE 10W-40)
- Premium Motul 7100 4T (100% Synthetic, Ester)
Fully Synthetic vs Semi-Synthetic
| Fully Synthetic | Semi-Synthetic | |
|---|---|---|
| Base oil | 100% chemical synthesis (ester or PAO) | Mineral oil + synthetic additives |
| Heat resistance | Excellent — stable at extreme heat & RPM | Good — suitable for normal temperatures |
| Cold start | Better — reaches engine faster when cold | Good — adequate for normal climates |
| Change interval | Longer (up to 10,000 km) | Shorter (5,000–7,000 km typical) |
| Price | Higher | Lower |
Oil filter
Spec: Hiflofiltro HF563
- Premium Hiflofiltro HF563
Spark plug
Spec: NGK CR8EB, gap 0.8 mm
- OEM NGK CR8EB
- Premium NGK CR8EIX
Front brake pads
Rear brake pads
Front tire
Spec: 1.9 bar
Rear tire
Spec: 2.0 bar
Brake fluid
Spec: DOT 4
Coolant
Spec: 1.10 L coolant capacity
Service interval
Spec: 6 000 km / 12 months
- OEM Engine oil + oil filter change
- OEM Air filter inspection
- OEM Spark plug check
- OEM Brake fluid replacement: every 2 years
Valve check
Spec: 12 000 km
- OEM Intake clearance: cold 0.12-0.15 mm
- OEM Exhaust clearance: cold 0.15-0.20 mm
Suspension
Spec: 41 mm USD fork / 390 ml SAE 7.5W
- OEM Fork: 41 mm USD fork
- OEM Fork oil grade: 390 ml SAE 7.5W
Air filter
Drive chain
Battery
- Premium Yuasa YTX7L-BS or YTX7A-BS (typical 125-250cc)
