BMW K75 & K100
Known as the 'Flying Brick,' BMW's K75 and K100 models introduced a new era of liquid-cooled, inline-engine motorcycles. They are now appreciated as durable, affordable classics popular with both touring riders and custom builders.
BMW K75 & K100 sold for a median of $4,800 over the last 12 months, based on 12 auction sales; the middle 50% sold between $3,463 and $8,225. 76 currently for sale.
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BMW K75 & K100 prices by year
| Year | Median (3 yrs) | Middle 50% | Sales (3 yrs) | For sale now |
|---|---|---|---|---|
| 1985 | $7.8k | $6.3k–$13k | 10 | 9 |
| 1986 | $8.9k | – | 3 | 9 |
| 1987 | $3.5k | – | 3 | 9 |
| 1988 | $26k | – | 1 | 6 |
| 1990 | $5.6k | $3.5k–$6.8k | 10 | 7 |
| 1991 | $7.1k | $7k–$9.5k | 5 | 4 |
| 1992 | $5.5k | $4.1k–$6.3k | 6 | 4 |
| 1993 | $10k | $6.9k–$10k | 9 | 4 |
| 1994 | $5.3k | $3.7k–$7k | 4 | 12 |
| 1995 | $4.5k | – | 3 | 6 |
Auction sales in the last 3 years; prices leave out salvage and other branded titles.
Listings
BMW introduced the K100 in 1983 as a radical departure from its traditional air-cooled boxer twins. The new bike featured a liquid-cooled inline-four engine laid on its side, earning it the nickname 'Flying Brick'. It was a direct effort to compete with the multi-cylinder motorcycles from Japan. In 1985, BMW followed up with the K75, a 750cc triple that was smoother and lighter, which many riders came to prefer.
These K-series bikes are prized for their unique engineering and incredible durability, with many examples easily surpassing 100,000 miles. They represent a major turning point for BMW and offer a comfortable, capable, and distinctive riding experience. Their relatively simple mechanicals make them approachable for home mechanics, and they have become a popular platform for cafe racer and scrambler custom builds.
Buying Tips
- Check service records for regular final drive and transmission input spline lubrication. Neglect leads to costly repairs.
- Test the early ABS system if equipped. The warning lights should cycle correctly on startup, as non-functional units are common.
- Inspect the wiring harness and connectors for corrosion or brittleness, especially around the instrument cluster and under the tank.
- Listen for the fuel pump to prime when the ignition is turned on. Fuel systems can be problematic on bikes that have sat for long periods.
- Look for smoke on startup, which can indicate worn valve stem seals, a common issue as these bikes age.
237 BMW K75 & K100 vehicles have been tracked across auctions and listings on Hypercars, with 76 currently live.
Data sourced from auction results and dealer and private listings across 100+ marketplaces, auctions and forums, plus thousands of dealers. Updated daily.
Frequently Asked Questions
How much does a BMW K75 & K100 cost?
Over the last 12 months, BMW K75 & K100 sold for a median of $4,800 across 12 auction sales tracked on Hypercars; the middle 50% sold between $3,463 and $8,225. There are 76 currently for sale.
How many BMW K75 & K100 listings are for sale right now?
There are 76 BMW K75 & K100 listings currently live across auctions, dealers, and marketplaces tracked by Hypercars.