2015 KTM 125 SX

2015 KTM 125 SX

The KTM 125 SX model comes equipped with a 124.8cc two stroke engine with a six speed transmission. It also has a strong but lightweight chassis, a redesigned damping system and new linkage with improved geometry. The KTM 125 SX also has a new 22 millimeter front axle, new fork stubs for an offset of 33 millimeters and lighter fork protectors.

Model125 SX
Engine TypeSingle-cylinder, two-stroke
Engine Displacement124.8cc
Bore Stroke54 mm x 54.5 mm
Compression RatioNA
Fuel SystemNA
IgnitionContactless, controlled, electronic ignition system w/digital ignition timing adjustment
Starting SystemKick starter
TransmissionSix gear, claw shifted
Final Drive520 X-ring Chain
Rake TrailNA
Seat Height39.0 in.
Wheelbase58.2 in.
Front SuspensionWP Suspension Up Side Down 4860 MXMA 4CS, 11.8 in. travel
Rear SuspensionWP Suspension 5018 BAVP DCC, 12.4 in. travel
Front BrakeDisc brakes, brake calipers on floating bearings, 260 mm
Rear BrakeDisc brakes, brake calipers on floating bearings, 220 mm
Front TireMaxxis
Rear TireMaxxis
Fuel Capacity1.98 gal.
Dry Weight203 lbs.

2016 KTM 125SX First Ride Review

2016 KTM 125 SX & 150 SX Two-Stroke First Ride

MotoUSA hops on the new KTM 125 SX and KTM 150 SX to see how the updated two-stroke machines performed at Ironman Raceway Motocross track.

2016 KTM Two-Stroke SX First Looks

2016 KTM Two-Stroke SX First Looks

KTM has released details on its 2016 line of two-stroke SX off road models, with major overhauls for the 125 SX and 150 SX models and minor revisions to the 250 SX.