KTM 525 SMR 2005
Super Moto / Racing
510cc
4-stroke
260lb
wet weight
33.7in
Seat height
11.2in
Front travel
6spd
Gearbox
The machine
The 2005 KTM 525 SMR is part of KTM’s SMR Racing line, specifically the 520/525 SMR Racing family. Its maintenance path centers on the oil system, hydraulic clutch, and braking, with concrete service steps for oil screening, filter changes, and fluid types. The oil circuit uses a long oil screen and a short oil screen, with a second oil pump drawing oil from the crankcase to lubricate transmission gears. For lubrication, use fully synthetic Motorex Power Synt 4T meeting JASO MA standards: 10W/50 in temperatures above 0°C and 5W/40 when it’s colder. When changing oil, you must clean both screens and replace both oil filters, and you add 1.2 liters of oil. The hydraulic clutch requires Motorex Kupplungs-Fluid 75 (SAE 10 biodegradable hydraulic oil), while brake fluid must be DOT 5.1 (never DOT 5). Torque specs include 20 Nm for the drain plug, 15 Nm for the long-screen plug, 10 Nm for the short-screen plug, and 6 Nm for oil-filter cover bolts. Original KTM spare parts are recommended, and the maintenance framework includes a periodic schedule within the racing lineup.
Who should ride it
The KTM 525 SMR appeals to experienced riders who push a bike in racing or high-intensity trail contexts. This profile includes hare scrambles racers, dedicated weekend SMR riders, and riders who value precise, serviceable maintenance. You’re looking for a race-ready 525 that you can service with clear oiling, fluid, and brake procedures, and that you’ll keep up with regular filter and screen maintenance to maintain reliability in demanding conditions.
Tech specs
- Displacement
- 510cc
- Stroke
- 4-stroke
- Fuel system
- Carburetor
- Bore × stroke
- 95 × 72 mm
- Compression
- 11:1
- Cooling
- Liquid
- Configuration
- Single-cylinder
- Valve train
- SOHC
- Valves
- 4
- Oil chamber
- Single
- Engine oil
- 1.25 L
- Oil type
- 10W-50
- Coolant
- 1 L
- Type
- Wet multiplate
- Actuation
- Hydraulic
- Assist
- Manual
- Spring
- Coil
- Brand
- KTM
- Starting
- Kick
- Transmission
- 6-speed
- Chain size
- 525
- Front sprocket
- 14T
- Rear sprocket
- 45T
- Wet weight
- 260 lb
- Dry weight
- 249 lb
- Seat height
- 33.7″
- Ground clearance
- 15.1″
- Wheelbase
- 58.3″
- Fuel capacity
- 1.85 gal
- Frame material
- Chromoly
- Architecture
- Central tube
- Rake
- 26.5°
- Steering angle
- 63.5°
- Front
- WP Up Side Down 4860 MA
- Front travel
- 11.2″
- Rear
- WP 5018 PDS
- Rear travel
- 11.8″
- Front wheel
- 17″
- Rear wheel
- 17″
- Front tire
- 120/75 R17 KR 106
- Rear tire
- 165/55 R17 KR 108
- Front disc
- 310 mm
- Rear disc
- 220 mm
- Radiator fan
- Yes
- Street legal
- No
- Battery
- No
- Chemistry
- Lead acid
- Voltage
- 12V
- Capacity
- 8 Ah
Pit-lane questions
- 01
What oil does the 2005 KTM 525 SMR use and what grade should I run by temperature?
Use fully synthetic oil that meets JASO MA. KTM recommends Motorex Power Synt 4T 10W/50 for temperatures above 0°C, or 5W/40 for temperatures below 0°C.
- 02
How much oil do I add after an engine oil change?
After changing the oil and filters, add 1.2 liters of fully synthetic engine oil.
- 03
Do I need to replace the oil filters when changing oil?
Yes. When changing the engine oil, you must replace both oil filters and clean the short and long oil screens.
- 04
What kind of oil screens does the engine have and how are they serviced?
The engine uses a long oil screen and a short oil screen. Dismount the corresponding plugs to remove and clean each screen, inspect O-rings, and reassemble with the specified torques.
- 05
What hydraulic fluid is used for the clutch, and are there any cautions?
Use Motorex Kupplungs-Fluid 75 (SAE 10 biodegradable hydraulic oil). Never use brake fluid.
- 06
What brake fluid should I use, and what should I avoid?
Use DOT 5.1 brake fluid (Motorex Brake Fluid DOT 5.1). Do not use DOT 5 brake fluid, and avoid mixing biodegradable hydraulic oils with mineral oils.
- 07
What are the torque specs I should remember when servicing the oil system?
Drain plug: 20 Nm; long oil-screen plug: 15 Nm; short oil-screen plug: 10 Nm; oil-filter cover bolts: 6 Nm.
- 08
Is there a model-year change I should know about regarding the brake fluid reservoir?
The brake fluid container arrangement is noted as mounted up to the 2003 model; changes occur for later model years.
- 09
How should I check the engine oil level?
Check with the engine warm or cold. When warm, the oil level should be near the MAX mark; when cold, it should be near the lower edge of the inspection glass, and correct if needed.