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Description
FEATURES
- 52100 bearing steel is used in these rebuild kits for motocross, off-road, and dual-purpose bikes
- Kits include all the bearings, seals, shafts and spacers required for a complete rebuild
- Thrust bearings are replaced with Teflon® bearings, which perform better in dirt and water
- Expansive application chart covers bikes from the 70's to present
- Imported
Technical Specifications
- MFG. Part Number 28-1139
Vehicle Information
BETA Rev3 250 Dirt Bike (2000-2008)
The Beta Rev3 250 is a trials motorcycle produced from 2000 to 2008. Throughout this period, it consistently featured a single-cylinder, two-stroke engine with a displacement of 249.6 ccm (approximately 250cc). While the Rev3 model line offered various engine sizes (125cc, 200cc, 250cc, 270cc) as primary variations, the 250cc engine remained a stable option. Although the core engine displacement was consistent, the Rev3 250 received several significant technical updates across its production run. Notable changes include engine modifications for improved low-end performance and cooling system updates in 2002. In 2006, a new cylinder with crankcase induction and a revised stator were introduced, alongside chassis adjustments like lower footrests and a new shock absorber. The 2008 model year brought substantial alterations to reduce weight and boost performance, featuring a new Keihin PWK 28mm carburetor, a redesigned crankcase, and a new cylinder head design for the 250cc, along with updated fork and shock settings. The 2008 model also saw the introduction of the four-stroke Rev 4T 250cc alongside the two-stroke Rev3. Q: How do I ensure I select the correct parts for my Beta Rev3 250?
A: To guarantee a perfect fit, please use the year and edition selector at the top of this page. This will filter parts specifically compatible with your motorcycle's exact model year.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | 6 000 km | Gearbox oil should be changed after the first 5 hours of operation. Subsequent changes follow the maintenance chart in the manual, using recommended lubricants. |
| Belt | Not applicable | Beta Rev3 250 trials motorcycles typically use a chain drive, not a belt. |
| Spark Plug | 13 000 to 16 000 km | Inspect regularly, around every 13 000 km. The specified spark plug is a BP7ES. |
| Air Filter | 4 800 to 8 000 km | Clean and re-oil. For off-road or dusty conditions, more frequent cleaning (e.g., weekly or every 3-4 hours of riding) is recommended. Replace if worn or damaged. |
| Coolant | Every 2 years or 38 500 km | Check level with a cold engine. Some sources suggest yearly changes. |