fits model: K1200s. make: Bmw. year: 2006.

( Manufacturer Part Number: 2205171 ), ( Type: Swingarm )
The **BMW 2205171 Rear Swingarm Drive Hub Differential/Sensor Caliper Assembly** from the **2006 K1200S** is a meticulously engineered, high-performance component designed to deliver uncompromising reliability and precision in the motorcycle s rear suspension and braking system. This critical assembly integrates the **rear drive hub, differential mechanism, and hydraulic caliper** into a single, robust unit, ensuring seamless power transfer, smooth gear engagement, and responsive braking performance. Crafted from high-grade steel and reinforced alloys, the drive hub features a **multi-stage planetary differential** that optimizes torque distribution between the rear wheels, enhancing traction and stability especially during aggressive cornering, high-speed maneuvers, or off-road conditions where wheel slip is a concern. The differential s precision-machined gears and robust bearings minimize friction and wear, extending the lifespan of the assembly while maintaining smooth operation under heavy loads.
The **integrated hydraulic caliper** is a key component of the motorcycle s braking system, featuring a **dual-piston design** that provides consistent, powerful stopping power with minimal brake fade. Engineered to work in tandem with the **BMW ABS (Anti-lock Braking System)**, this caliper ensures optimal braking efficiency while preventing wheel lockup, thereby enhancing rider control and safety. The caliper s mounting points are strategically reinforced to withstand the forces generated during hard braking, and its seals are designed to resist contamination from dirt, moisture, and debris, which is particularly important for riders who frequently operate in challenging environments. The assembly also incorporates a **speed sensor** a critical component for the motorcycle s traction control and ABS systems ensuring accurate wheel speed data is relayed to the ECU for real-time adjustments.
For maintenance and replacement purposes, this component is engineered for ease of installation, though it requires specialized tools and expertise to ensure proper alignment and calibration. The **2205171 part number** is specific to the **2006 K1200S**, making it a direct-fit replacement for OEM applications, though compatibility may vary slightly depending on the motorcycle s mileage and wear history. Whether restoring a classic K1200S to factory specifications or upgrading an existing setup for enhanced performance, this rear swingarm assembly represents a fusion of German engineering precision and durability, ensuring that riders can trust in its reliability for both daily commuting and high-performance riding. Proper installation, regular lubrication, and periodic inspections of the differential and caliper components are essential to maintaining optimal functionality and extending the assembly s service life.
### **Pros and Cons of Buying a Used BMW K1200S Rear Swingarm Drive Hub Differential/Sensor/Caliper (Part Number: 2205171, 2006 Model)**
#### **Pros:**1. **Compatibility** This part is designed specifically for the BMW K1200S, ensuring a perfect fit without modifications.
2. **Reliability** BMW s K-series components, especially the rear hub and differential, are known for durability when properly maintained.
3. **Performance Impact** A functional rear hub and differential are critical for smooth power delivery and stability, especially in high-performance bikes.
4. **Ease of Installation** Many mechanics and DIY riders report that the rear hub assembly is relatively straightforward to install, provided the necessary tools and experience are available.
5. **Cost-Effective Alternative** Purchasing a used or rebuilt unit can be significantly cheaper than buying new, reducing overall repair costs.
6. **Potential for Long-Term Use** If the part is in good condition, it can last for many years, especially if paired with proper maintenance (e.g., regular chain/lubrication checks, wheel balancing).
7. **Accessibility of Parts** BMW s aftermarket and OEM parts are widely available, making replacements easier if issues arise later.
#### **Cons:**1. **Wear and Tear** A used part may have hidden damage, such as worn bearings, cracked housing, or internal differential issues, which could lead to premature failure.
2. **Inconsistent Quality** The condition of the part depends entirely on the seller s honesty. Without a thorough inspection or professional assessment, you risk buying a faulty unit.
3. **Potential for Hidden Problems** Even if the hub and differential look fine externally, internal components (e.g., seals, bearings, or the differential gearset) may be degraded, leading to costly repairs down the line.
4. **Compatibility Risks** If the part was sourced from a modified or non-standard bike, it might not fit perfectly or could introduce alignment issues.
5. **Labor Costs** While installation may not be extremely difficult, removing the old hub and setting up the new one requires time, skill, and possibly specialized tools (e.g., chain whippers, torque wrenches).
6. **Warranty Limitations** Used parts typically come with no warranty, meaning you bear full responsibility for any failures post-purchase.
7. **Market Variability** Prices for used parts can fluctuate widely based on demand, condition, and seller reputation, making it difficult to gauge fair value.
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### **Ending Conclusion**
Buying a used BMW K1200S rear swingarm drive hub differential/sensor/caliper assembly (2205171) can be a cost-effective solution if you prioritize affordability and are willing to take on the risk of potential hidden issues. The part is critical for the bike s drivetrain and handling, so its condition directly impacts ride quality and safety. However, the lack of warranty and the uncertainty of its internal health make this a high-risk purchase unless you have access to a trusted mechanic for inspection.
If you proceed, **verify the part s history** (e.g., ask for service records, photos of the assembly, or a test ride to check for smooth operation). Consider having a professional inspect it before installation to avoid costly mistakes. Alternatively, if budget allows, purchasing a **rebuilt or remanufactured OEM part** from a reputable dealer may offer better long-term reliability.
### **Recommendation**
- **If you re experienced and confident in your ability to inspect mechanical components:** Proceed with caution, prioritize sellers with strong reviews or warranties, and budget for potential follow-up repairs.
- **If you re unsure or lack mechanical expertise:** Opt for a **new or remanufactured part** from BMW or an authorized dealer to ensure quality and warranty coverage.
- **If you re on a tight budget but want to minimize risk:** Look for a **used part from a trusted source** (e.g., a local motorcycle shop with a return policy or a seller who offers a short warranty) and have it professionally inspected before installation.
Ultimately, the decision depends on your risk tolerance, mechanical skills, and willingness to invest in thorough due diligence.
If the item does not fit motorcycle model specified in listing. More options available upon request. ; 2006 BMW K1200S REAR SWINGARM FINAL DRIVE HUB DIFFERENTIAL/SENSOR CALIPER. Many countries only allow 79 max package length and girth combined.
Inglewood, CO 80110. ADDRESS: Steele's Cycle, 2025 W. Each part is systematically placed to be easily located once purchased.