Hot Rods Crankshaft Assembly
M09-164380 (MFG #: 4096)
$637.67
Sale price
$637.67
Regular price
$671.23
Sale
-4%
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Hot Rods Crankshaft Assembly for KTM 85 SX Dirt Bike
Hot Rods Crankshaft Assembly for KTM 85 SX Dirt Bike
$637.67
Sale price
$637.67
Regular price
$671.23
Sale
-4%
SKU:M09-164380
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Description
Hot Rods Crankshift Assemblies.
FEATURES
- All new assembly sold complete with Hot Rods connecting rod
- Crankshafts are sold complete with the original proven Hot Rods connecting rods, top end bearings, and crankshaft webs
- Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance and durability
- Cranks are sold ready for installation and are completely re-buildable with genuine Hot Rods connecting rods
- Main bearings not included
Technical Specifications
- MFG. Part Number 4096
Vehicle Information
KTM 85 SX Dirt Bike (2003-2026)
The KTM 85 SX has been a cornerstone in junior motocross racing from 2003 to 2026, consistently powered by an 85cc two-stroke, liquid-cooled engine. This high-performance dirt bike is renowned for its agility and competitive edge, featuring an 84.9cc single-cylinder engine paired with a 6-speed manual transmission and a hydraulic clutch. Throughout its production, the 85 SX has offered two primary wheel size configurations—17/14 and 19/16 inches—to accommodate various rider heights and skill levels, a consistent trim distinction since at least 2009. The model has seen several key evolutions. Introduced in 2003 as a new construction, it received significant updates in 2008 with a sturdier frame and improved engine, followed by a new chassis and power enhancements in 2011. A major redesign around 2018 introduced a chromoly steel frame and WP Xact suspension. The 2026 model continues this trend with further engine weight reduction (120g lighter), new triple clamps, and advanced WP XACT AER forks, alongside a redesigned subframe, ensuring continuous optimization for performance. FAQ:
Q: How do I ensure I select the correct parts for my KTM 85 SX?
A: Always use the year and edition selector on this page to find parts specifically compatible with your motorcycle.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | 5 to 10 h | 5 h for aggressive/race riding; 10 h for recreational riding. Some models may require 3 h for very aggressive riding. |
| Air Filter | 2 to 5 h | 2-3 h for aggressive/dusty riding; 5 h for recreational riding. Clean and lubricate regularly. |
| Spark Plug | Check regularly | Replace if required. No fixed hourly interval specified. |
| Coolant | Check levels | Check cooling system for leaks. No fixed replacement interval specified. |
| Chain (Final Drive) | Every 5 h | Clean and lubricate regularly to ensure smooth operation and prevent premature wear. |
| Valve Inspections | 10 to 30 h | 10 h for aggressive riding; 20 h for recreational riding (some models). The 2010 model recommends 30 h. |
| Top-End Inspections (Piston, Cylinder) | 15 to 30 h | 15 h for aggressive riding; 30 h for recreational riding. |
| Bottom-End Inspections (Crankshaft, Bearings) | 30 to 60 h | 30 h for aggressive riding; 60 h for recreational riding. |
Maintenance intervals can vary significantly by model year and riding style (recreational vs. aggressive). Always consult your specific owner's manual for precise recommendations.