Make Model	Aprilia ETX 125
Year	1997 - 98
Engine	Two stroke single cylinder with laminar suction and separate lubrication
Capacity	124.8 cc / 7.6 cu in
Bore x Stroke	54 x 54.5 mm
Compression Ratio	15.5:1
Cooling System	Liquid cooled
Transmission Oil Capacity	0.6 L / 1.3 US pts
Two Stroke Oil Capacity	1.4 L / 3.0 US pts
Two Stroke Oil Reserve	0.5 L / 1.1 US pts
Induction	Dell'Orto PHBH 28 carburetor
Ignition	CDI
Spark Plug	NGK R BR8 ES
Battery	12V, 4Ah
Generator	12V - 180W
Starting	Kick
Clutch	Multidisc in oil bath
Transmission	6 Speed
Final Drive	Chain
Gear Ratios	1st 10:30 / 2nd 14:29 / 3rd 17:27 / 4th 19:25 / 5th 21:23 / 6th 22:21
Primary Ratio	19:63
Final Ratio	16:45
Frame	Single beam, double cradles in high-resistance steel tubes
Rake	28°
Trail	127 mm / 5.0 in
Front Suspension	Hydraulically operated telescopic fork
Front Wheel Travel	232 mm / 9.1 in
Rear Suspension	Hydraulic adjustable mono-shock
Rear Wheel Travel	101.5 mm / 4.0 in
Front Brakes	Single disc, Ø250 mm
Rear Brakes	Single disc, Ø220 mm
Wheels	Stainless steel with tangential spokes
Front Rim	1.60 x 21
Rear Rim	2.15 x 18
Front Tyre	90/90 - 21 54R or 54S or 80/100 - 21 51R
Rear Tyre	120/80 - 18 62S or 120/90 - 18 65R or 65P
Dimensions	Length: 2295 mm / 90.4 in Width:    850 mm / 33.5 in Height:  1205 mm  / 47.4 in (fairing included)
Wheelbase	1475 mm / 58.1 in
Seat Height	915 mm / 36.0 in
Ground Clearance	360 mm / 14.2 in
Wet Weight	129 kg / 284 lbs
GVWR	309 kg / 681 lbs
Fuel Capacity	11 L / 2.9 US gal
Fuel Reserve	4 L / 1.1 US gal