Beta RR 125 LC User Manual

ENGINE SPECIFICATIONS
Height H 5.0 mm (0.20 in)
Offset 0.50 mm (0.0197 in)
Offset direction Intake side
Piston pin bore inside diameter 14.002–14.013 mm (0.5513–0.5517 in)
Limit 14.043 mm (0.5529 in)
Piston pin outside diameter 13.995–14.000 mm (0.5510–0.5512 in)
Limit 13.975 mm (0.5502 in)
Piston-pin-to-piston-pin-bore clearance 0.002–0.018 mm (0.0001–0.0007 in)
Limit 0.068 mm (0.0027 in)
Piston ring
Top ring
Ring type Barrel
Dimensions (B × T) 0.80 × 1.90 mm (0.03 × 0.07 in)
End gap (installed) 0.10–0.25 mm (0.0039–0.0098 in)
Limit 0.50 mm (0.0197 in)
Ring side clearance 0.030–0.065 mm (0.0012–0.0026 in)
Limit 0.100 mm (0.0039 in)
2nd ring
Ring type Taper
Dimensions (B × T) 0.80 × 2.10 mm (0.03 × 0.08 in)
End gap (installed) 0.10–0.25 mm (0.0039–0.0098 in)
Limit 0.60 mm (0.0236 in)
Ring side clearance 0.020–0.055 mm (0.0008–0.0022 in)
Limit 0.100 mm (0.0039 in)
Oil ring
Dimensions (B × T) 1.50 × 1.95 mm (0.06 × 0.08 in)
End gap (installed) 0.20–0.70 mm (0.0079–0.0276 in)
Ring side clearance 0.040–0.160 mm (0.0016–0.0063 in)
Crankshaft
Width A 47.95–48.00 mm (1.888–1.890 in)
H
D
T
B
B
T
B
T

Beta RR 125 LC Specifications

General

Displacement	124.8 cc
Fuel System	Electronic Fuel Injection
Ignition	Electronic
Lubrication	Wet sump
Clutch	Wet multi-disc
Transmission	6-speed
Final Drive	Chain
Seat Height	920 mm
Fuel Tank Capacity	7.5 liters
Starting System	Electric
Front Suspension	Hydraulic fork with ø41 mm shaft
Front Brake	260 mm disc
Rear Brake	Single disc, 220 mm
Engine Type	Liquid-cooled, 4-stroke, single cylinder