Icebear Champion PBZ125-2

Drive Train

• • Standard chain: 420 series (stock), but 428 series also works and has higher tensile strength. Both are 1/2" pitch.
• • Stock gearing: 16T front sprocket, 32T rear sprocket.
• • The Champion uses a bolt-type rear sprocket (clearance holes, no tabbed sprocket like CT70 clones).
• • Recommended chain tension: 15–25mm (0.59–0.98").

Electrical

• • Typical battery voltage: 12.8 VDC
• • Recommended spark plug gap: 0.6–0.7mm (0.024–0.028")
• • Headlight bulb style: S2

Engine

• • Engine: 4-stroke, single cylinder, 125cc LC125FMI Loncin
• • Recommended cold valve clearance: 0.05mm (0.00197") intake & exhaust
• • Factory idle speed: 1500 ± 150 RPM in Neutral

Fluids

• • Oil capacity: 800ml (28.16oz)
• • The Champion does not use gear oil — any sticker or manual reference is an error or mistranslation.
• • Has a wet clutch → requires T4 motorcycle oil.
• • Bobcat's Motorsports recommends breaking in the engine with conventional oil.
• • Acceptable oil weights: 10W30, 10W40, or 15W40, as long as they are 4-stroke wet-clutch rated (JASO MA/MA2).

Fuel Delivery

Fuel tank capacity

• • Total usable: 3300ml (3.3L, 0.87gal)
• • Main: 2600ml (2.6L, 0.69gal)
• • Reserve: 700ml (0.7L, 0.18gal)

• • Fuel line size: 5mm or 3/16"
• • Recommended fuel: 91 octane (R+M)/2, ethanol-free
• • Petcock orientation:
  • - Shorter inlet = Reserve
  • - Longer inlet = Main
  • - Switch icon: full cup = Main, partially empty cup = Reserve

Interface & Starter

• • Odometer reads Kilometers.
• • Right-hand mirror is reverse threaded.
• • Auto-shutoff feature:
  • - If engine is off and key is left ON, the bike will eventually power down to conserve battery.
  • - To restart: turn key OFF then ON, then electric start.
• • Bike includes a kick starter.
• • Headlight is powered directly by the alternator.
• • Bike can run with a dead or absent battery.

Nuts & Bolts

• • Top Yoke Nut (Stem Nut): M22 × 1.00, stem hollow ID approx. 15mm
• • Front axle thread: M10 × 1.25

Suspension & Brakes

• • Front suspension max compression: approx 2.66"
• • Recommended brake specs:
  • - Brake pad wear limit: 1.5mm
  • - Front brake lever play: 10–20mm (0.39–0.79")
  • - Rear brake pedal free play: 20–30mm (0.79–1.18")

Tires & Tubes

• • Factory max tire pressure: 248 kPa (36 psi)
• • Factory recommended street tire pressure: 175 kPa (25 psi)
• • Minimum tread depth: 1.6mm (0.06")
• • Tire ply rating: 3.5–4.1 PR

Tube Valves

• • Front wheel: TR87 (short), TR87C (medium), JS244/A 90° Schrader
• • Rear wheel: TR87 (short), TR87C (medium)

Tire Fitment Notes

• • 3.50×10 (factory) or 4.00×10 fit with no fender adjustment.

Manufacturer Website Listed Spec Sheet

Some values were corrected; incorrect listed values appear with strikethrough.