KTM 125 SX Parts & Accessories
Everything we stock that fits the KTM 125 SX (2023–2026): 31 parts, each verified against manufacturer fitment data, grouped by category. Prices and stock are live. Not sure on year or trim? Use the bike finder to confirm your exact match.
Brakes for the KTM 125 SX
Master Cylinder Rebuild Kit — Gas-Gas EX250
$49.45
Master Cylinder Rebuild Kit — Gas-Gas EX250
$37.79
Brake Caliper Rebuild Kit — Gas-Gas EX250 (2022)
$31.23
Brake Caliper Rebuild Kit — Gas-Gas EX250 (2022)
$30.99
Brake Caliper Bolt Kit — Ducati DESMO 450 MX
$15.49
Brake Caliper Piston Kit — Gas-Gas EX250 (2022)
$47.86
Brake Caliper Piston Kit — Husqvarna FC 250
$26.57
Drivetrain for the KTM 125 SX
Renthal Front Sprocket Grooved 14T — 6 Makes — (PN 292--520-14GP)
$34.16
Renthal Front Sprocket Grooved 14T — GasGas/Husqvarna/KTM — (PN 292U-520-14GP)
$43.16
Renthal Front Sprocket Grooved 15T — 6 Makes — (PN 292--520-15GP)
$34.16
JT Sprockets Steel Front Sprocket — JTF1901.11 (11T)
$12.99
JT Sprockets Steel Front Sprocket — JTF1901.13 (13T)
$12.99
JT Sprockets Steel Rear Sprocket — JTR897.40 (40T)
$36.99
JT Sprockets Steel Rear Sprocket — JTR897.41 (41T)
$36.99
JT Sprockets Steel Rear Sprocket — JTR897.46 (46T)
$36.99
JT Sprockets Self-Cleaning Steel Rear Sprocket — JTR897.51SC (51T) — (see
$36.99
Wheel Bearing Kit — Beta RC 4T 450 (2025) + 356
$34.08
JT Sprockets Steel Front Sprocket — JTF1901.14 (14T)
$12.99
JT Sprockets Self-Cleaning Steel Rear Sprocket — JTR897.45SC (45T) — (see
$36.99
JT Sprockets Self-Cleaning Steel Rear Sprocket — JTR897.48SC (48T) — (see
$36.99
JT Sprockets Self-Cleaning Steel Rear Sprocket — JTR897.50SC (50T) — (see
$36.99
JT Sprockets Self-Cleaning Steel Rear Sprocket — JTR897.52SC (52T) — (see
$36.99
Suspension for the KTM 125 SX
Fork Oil Seal Kit — Beta RR 2T 125 (2019-2023) +
$18.24
Fork Dust Seal Kit — Beta RR 2T 125 (2019-2023)
$19.50
Fork Bushing Kit — KTM Adventure R Rally 790
$43.59
Suspension Linkage Bearing Kit — Gas-Gas EC125 — 3 Makes — (PN 27-1217)
$120.65
Swingarm Bearing Kit — Beta RC 4T 450 (2025) +
$75.40
Fork Oil & Dust Seal Kit — Beta RR 2T 125
$40.57
Controls for the KTM 125 SX
Maintenance for the KTM 125 SX
Fitment is anchored on the manufacturer's own application data and verified before it goes live. If you spot anything that looks off for your KTM 125 SX, tell us. Accuracy is the whole point.














