BMW 46511457477 Rear Frame
fits model: R100, Gs. make: Bmw.
( Manufacturer Part Number: 46511457477 ), ( Part Type: Frame ), ( Color: Black ), ( Material: Metal ), ( Country Of Origin: Germany )
Review BMW Pd Rear Frame Black fits R100 GS
The **BMW R100GS PD Rear Frame (Part Number: 46511457477)** is a meticulously engineered component designed to form the backbone of the legendary BMW R100GS adventure motorcycle, a machine renowned for its durability, off-road prowess, and timeless appeal. Crafted from high-grade steel, this rear frame is a masterpiece of German engineering, built to withstand the rigors of both on-road commuting and demanding off-road excursions. The frame s robust construction ensures exceptional rigidity, which translates into precise handling, enhanced stability, and a confident riding experience, whether navigating twisty mountain roads or tackling rough terrain. Its classic yet functional design reflects the R100GS s heritage as a pioneer in the adventure motorcycle category, blending vintage charm with modern reliability.
This rear frame is a critical structural element, seamlessly integrating with the motorcycle s suspension system, engine mounts, and other chassis components to create a harmonious balance of strength and flexibility. The precise machining and heat treatment of the steel ensure that the frame maintains its integrity under extreme conditions, from high-speed cruising to aggressive off-road maneuvers. The PD (or "Parallelogram") frame design of the R100GS, characterized by its distinctive rear swingarm pivot and engine-mounted rear suspension, contributes to the bike s legendary long-travel capability and ground clearance, making it a favorite among riders seeking both comfort and capability.
For restoration enthusiasts and mechanics, this rear frame is a sought-after part, as it plays a pivotal role in preserving the authenticity and performance of the R100GS. Whether replacing an aged or damaged frame or upgrading an existing build, this component ensures that the motorcycle retains its iconic character while benefiting from modern standards of quality. Its compatibility with a wide range of aftermarket and OEM accessories further enhances its versatility, allowing riders to customize their R100GS to suit their specific needs whether for touring, racing, or off-road adventure. With its blend of historical significance and engineering excellence, the BMW R100GS Rear Frame (46511457477) remains an indispensable piece for anyone passionate about this legendary motorcycle.
### **Pros and Cons of Buying a BMW R100 GS PD Rear Frame (1980 1985, Model Code 46511457477)**
#### **Pros**
1. **Classic BMW Adventure Bike Design**
The R100 GS was BMW s first true adventure bike, designed for long-distance touring and off-road capability. Its boxer-twin engine, long-travel suspension, and rugged construction make it a beloved classic among motorcycle enthusiasts.
2. **Reliable Boxer-Twin Engine**
The 980cc air-cooled flat-twin engine is known for its durability and smooth power delivery. With proper maintenance, these engines can easily exceed 100,000 miles. The simplicity of the design also makes repairs more straightforward compared to modern fuel-injected engines.
3. **Off-Road Capability**
The R100 GS was built for adventure, featuring a long-travel suspension (front 120mm, rear 110mm), a high ground clearance, and a robust frame. It handles rough terrain well, making it a great choice for riders who enjoy exploring dirt roads and light trails.
4. **Timeless Aesthetic & Collectibility**
The R100 GS has a strong cult following, and well-maintained examples are highly sought after. Its retro styling, combined with its historical significance as BMW s first "adventure bike," makes it a desirable collector s item.
5. **Modification Potential**
The R100 GS has a strong aftermarket support, with options for performance upgrades (exhaust, carburetor tuning), comfort modifications (seat, handlebars), and even modernizing components (electronic ignition, fuel injection).
6. **Lower Operating Costs (Compared to Modern Bikes)**
Fuel efficiency is decent for its class (around 40 50 mpg), and parts are relatively affordable compared to newer BMW models. The simplicity of the engine also means lower long-term maintenance costs if kept in good condition.
7. **Strong Community & Support**
There are numerous clubs, forums (e.g., BMW Motorrad GS Owners), and restoration guides available for R100 GS owners. This makes troubleshooting and finding parts easier than for rarer models.
---
#### **Cons**
1. **Age & Wear**
Most R100 GS models in this range are from the early 1980s, meaning they will require significant maintenance. Rust, worn suspension, and aging electrical components are common issues that need addressing.
2. **High Maintenance Requirements**
Unlike modern bikes with sealed components, the R100 GS requires regular attention to:- **Suspension** (shocks, forks, and bushings wear out over time)
- **Brakes** (drum brakes are less effective than modern discs)
- **Electrical system** (old wiring, faulty switches, and weak battery)
- **Fuel system** (carburetor tuning, fuel line leaks)
- **Frame & Subframe** (rust, especially in wet climates)
3. **Poor Fuel Economy & Power**
The air-cooled boxer-twin produces around **50 60 hp**, which is adequate but not powerful by modern standards. Fuel efficiency is decent but not exceptional (around 40 50 mpg), and the bike feels sluggish at highway speeds compared to modern adventure bikes.
4. **Outdated Safety Features**
- **Drum brakes** (less stopping power than modern disc brakes)
- **No ABS** (modern safety standard)
- **Basic lighting** (older halogen or even bulb-based systems)
- **No traction control or slipper clutch** (modern bikes have these for stability)
5. **Comfort Limitations**
While the ergonomics are adjustable, the seat is firm, and the riding position is more upright than modern sport-touring bikes. Long rides may lead to fatigue, especially if the bike hasn t been updated with modern comfort mods.
6. **Parts Availability & Costs**
While parts are widely available, some components (especially OEM) can be expensive. Rebuilding the engine or suspension may require sourcing used or aftermarket parts, which can add up.
7. **Environmental & Emissions Concerns**
The R100 GS is not street-legal in many modern areas due to emissions regulations. Some riders may need to register it as a "vintage" or "classic" bike, which can be restrictive in certain regions.
8. **Rust & Structural Issues**
Many R100 GS frames (especially rear subframes) suffer from rust, particularly in areas exposed to moisture. A thorough inspection is essential to ensure the frame is structurally sound.
---
### **Conclusion & Recommendation**
#### **Who Should Buy This Bike?**
- **Enthusiasts who appreciate classic motorcycle design** and don t mind maintenance.
- **Riders who prioritize adventure and off-road capability** over modern comfort and power.
- **Those looking for a project bike** with strong aftermarket support and a growing collector s market.
- **Owners of other BMW GS models** who want a historical piece to add to their collection.
- **Budget-conscious buyers** who are willing to invest time and money in restoration.
#### **Who Should Avoid This Bike?**
- **Riders seeking a plug-and-play, low-maintenance machine** this is a classic, not a modern adventure bike.
- **Those who prioritize high speed, modern safety features (ABS, traction control), or fuel efficiency.**
- **Buyers in wet climates** unless the frame has been thoroughly checked for rust.
- **People who dislike tinkering with mechanical systems** this bike requires regular upkeep.
#### **Final Recommendation**
If you find a **well-documented, restored, or restored-to-like-new R100 GS PD rear frame**, it can be an excellent investment both as a riding machine and a collector s item. However, **buyers should expect to spend significantly on maintenance, upgrades, and potential frame repairs**.
**Best Approach:**- **Get a professional inspection** (preferably by a BMW specialist) before purchasing.
- **Check for rust, suspension condition, and engine health** these are the biggest red flags.
- **Budget for a full rebuild or restoration** if buying a project bike.
- **Consider buying from a reputable dealer or trusted private seller** with full service history.
If you re willing to put in the work, the R100 GS PD is a fantastic machine with a legacy that few modern bikes can match. If you want convenience and modern features, however, a newer adventure bike (e.g., BMW GS 1250, KTM 1290 Super Adventure) may be a better choice.
Details:
Some wear and cracking to rubber bumpers. Its never been wrecked and was either garaged or covered outside, so everything is in good used condition. Includes rubber bumpers for side panel mounting. Includes 3 sets of mounting bolts/washer/nuts as shown in photos.
Part number 46 51 1 457 477 or 46-51-1-457-477. Bolt that secures through muffler is NOT included. Straight - no accident damage. BMW R100 GS PD Rear Frame, Black.
Condition is GOOD. Fits: 1988 1996 R100 GS and PD.
part #: 46511457477 prices
- $189.99-$259.99
specifications mocycfra:
- for models: R100, Gs
- for makes: Bmw
- mpn: 46511457477
- part type: Frame
- color: Black
- material: Metal
- country of origin: Germany
payments mocycfra:
- wallet: Google-pay
- credit card: Diners-club
- other
returns mocycfra:
- policy: No Returns
shipping mocycfra:
- carrier: UPS
- service: UPS Ground
- cost: $55.77
- class: Standard
- transit: 3-8 Days
- type: Calculated
offer mocycfra:
- availability: In Stock
- sold: 0
- options: Ship-to-home
- started: May 13, 2026
- quantity: 1
general mocycfra:
- condition: Used
- Motorcycle Scooter Parts Accessories > Body Frame > Frames Parts
seller mocycfra:
- rating: 100.0%
- city: Philadelphia, Pennsylvania
- # reviews: 1496
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