KTM 125SX
Need a fast and agile 2-stroke MX bike? The KTM 125SX off-road motorcycle is an
extremely light motocross machine that makes other dirt bikes of its caliber wimper.
Need parts for the 125 SX, we've got them, and if there's a performance part or
service you do not see here, contact us now, and we'll point you in the right
direction.
KTM 125SX ENGINE SPECS | |
Engine type | Single cylinder, 2-stroke |
KTM 125SX Displacement | 124.8 cc |
KTM 125SX Bore x stroke | 54 x 54.5 mm (2.13 x 2.15") |
KTM 125SX Starter | Kickstarter |
KTM 125SX Transmission | 6 gears |
KTM 125SX Carburetor | Keihin PWK 39 |
KTM 125SX Control | TVC power valve |
KTM 125SX Lubrication | Mixture oil lubrication 1:40 |
KTM 125SX Transmission oil | Motorex, fully synthetic, SAE 15W-50 |
KTM 125SX Primary drive | 23:73 |
KTM 125SX Final drive | 13:50 |
KTM 125SX Cooling | Liquid cooled |
KTM 125SX Clutch | Wet multi-disc clutch, operated hydraulically |
KTM 125SX Ignition | Kokusan digital magnet CDI |
KTM 125SX CHASSIS SPECS | |
KTM 125SX Frame | Central double-cradle-type 25CrMo4 |
KTM 125SX Subframe | Aluminium 7020 |
KTM 125SX Handlebar | Renthal, Aluminium Ø 28/22 mm (1.10 / 0.87") |
KTM 125SX Front suspension | WP USD Ø 48 mm (1.89") |
KTM 125SX Rear suspension | WP PDS shock absorber |
KTM 125SX Suspension travel front / rear | 300 / 335 mm (11.81 / 13.19") |
KTM 125SX Brakes, front / rear | Disc brakes 260 / 220 mm (10.24 / 8.66") |
KTM 125SX Rims, front / rear | 1.60 x 21"; 2.15 x 19" Excel |
KTM 125SX Tires, front / rear | 80/100-21"; 100/90-19" |
KTM 125SX Chain | 5/8 x 1/4" |
KTM 125SX Main silencer | Aluminium |
KTM 125SX Steering head angle | 63° |
KTM 125SX Wheel base | 1471 ± 10 mm (57.91 ± 0.39") |
KTM 125SX Ground clearance (unloaded) | 390 mm (15.35") |
KTM 125SX Seat height | 925 mm (36.4") |
KTM 125SX Fuel capacity | approx. 7.5 liters (2 gal) |
KTM 125SX Weight (no fuel) | approx. 90.8 kg (200.2 lbs) |
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IMS PRODUCTS Fuel / Gas Tank - KTM 125 250 300 380 (98-02) - 3.7 GALLON - Dry Break
IMS Products Dry Break Fuel / Gas Tanks$330.95
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IMS PRODUCTS Fuel / Gas Tank - KTM 125EXC/MXC/SX 250EXC/MXC/SX 300EXC 380EXC/SX (03-06) - 3.2 GALLON
IMS Products Replacement Fuel / Gas Tanks$330.95 -
IMS PRODUCTS Fuel / Gas Tank - KTM 125SX 250SX 380SX (98-02) - 3.4 GALLON
IMS Products Replacement Fuel / Gas Tanks$330.95 -
IMS PRODUCTS Fuel / Gas Tank - KTM KTM125 (03-06) KTM250 (03-06) KTM300 (03-06) KTM380 (98-02) - 3.2 GALLON - Dry Break
IMS Products Dry Break Fuel / Gas Tanks$330.95
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Pivot Works Fork Rebuild Kit - KTM 125MXC 125SX 200SX 250MXC 250SX 300MXC 450MXC 450SX 525MXC 525SX (03-05)
Pivot Works Fork Rebuild Kits$74.95 -
Pivot Works Fork Rebuild Kit - KTM 125SX 200SX 250SX 300SX 380SX 400SX 520SX (2002)
Pivot Works Fork Rebuild Kits$74.95 -
Pivot Works Fork Rebuild Kit - KTM 125SX 200XC 250SX 250SX-F 250XC 300XC 450EXC-G 450SX-F 450XC-G 525EXC-G 525SX (06-07)
Pivot Works Fork Rebuild Kits$74.95
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Pivot Works Rear Wheel Axle Carrier Bearing Kit - KTM 125SX (08) 250SX (08) 450SX-F (08) 505SX-F (08)
Pivot Works Rear Wheel Axle Bearing Kits$38.95 -
Pivot Works Rear Wheel Axle Carrier Bearing Kit - KTM 125SX 200XC (06-07) 200XC-W (07) 250EXC (98-05) 250SX 250SX-F 250XC 250XC (06-07) 250XC-F 250XCF-W (07) 300EXC 300MXC (98-05) 300SX (98-02) 300XC (06-07) 300XC-W (07) 380EXC 380MXC (98-02) 400EXC
Pivot Works Rear Wheel Axle Carrier Bearing Rebuild Kits$39.95 -
Pivot Works Steering Stem Bearing Kits - KTM Models
Pivot Works Dirt Bike Steering Stem Bearing Kits$49.95
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Renthal Fat Bar Handlebars - 1-1/8 - ENDURO BEND
Renthal Fatbars Enduro Bend 1-1/8 Handlebars$119.95
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UNI Dirt Bike Air Filter - ALL 2-4 Stroke (04-06) 85 (08) 105SX 105XC (08) ALL 2-4 Stroke (04-07 Except SX / SXF) 250EXC 400EXC 450EXC 520EXC 525EXC 250MXC 400MXC 450MXC 520MXC 525MXC 250SX 400SX 450SX 520SX 525SX (02-04) 4-Stroke
UNI Air Filters are performance foam air filters. FITS: ALL 2-4 Stroke...$26.95 -
UNI Dirt Bike Air Filter - KTM 85 (04-06) 105 (04-07) 125EXC 200EXC 250EXC 300EXC 380EXC 400EXC 520EXC 125MXC 200MXC 250MXC 300MXC 380MXC 400MXC 520MXC 125SX 200SX 250SX 300SX 380SX 400SX 520SX 125SXC 200SXC 250SXC 300SXC 380SXC 400SXC 520SXC (98-03)
FITS: KTM 85 (04-06) 105 (04-07) 125EXC 200EXC 250EXC 300EXC 380EXC 40...$26.95