VALUATION
Secondhand HPN Bikes have a limited following and £10k should get you a very good Bike.
The market for these Bikes is limited [/QUOTE]
Buying used ones can be hard as according to Klaus from HPN only about 10% of the almost 700 bikes they have built since 1987 have been sold by the original owners.

Bill i would disagree with you , the market is small and demand for these machines is quite high..

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HPN Bikes – valuations and availability
I agree that HPN built Bikes are few and far between on the secondhand market and the figure of 70 is interesting, BUT my point is a more general one and maybe could be illustrated by asking the question and considering “how many HPN tanks have been sold”.
BMW had great success in the Paris Dakar Rally in the 80s and obviously entered for a commercial reason. Following this success they produced the 1985 R80G/S Paris Dakar mono and in 1989 the R100GS PD para, initially with Paris Dakar on the Tank, but after the “first Bikes – the 1989 model”, it had to be removed by BMW for copyright reasons, (not sure who owns the Paris Dakar name?), and was replaced by R100GS PD
My point is that there have been thousands of HPN “types” Bikes build, following in part the HPN or Paris Dakar concept. The build spec is easy to see as it has always been available from HPN, initially for the “big tank” Bikes and then for smaller tank ones built of the ST and G/S frames
The situation is that the HPN “style” can range from
to
OK the first is a little extreme
Many come up for sale each year.
If you want a full spec HPN Bike built by HPN it will cost you dearly but there are many variations in between and for guys who wanted a Paris Dakar image BMW produced the R100GSPD.
One of the marvels of the
Airhead boxer engine initially developed so many years ago is that “an enthusiast in his shed” can build, (assemble), a PD ish Bike using readily available parts, either new from HPN and other suppliers or secondhand from a number of sources. Many such Bikes are worth very little and even at the top end good ones can be found quite often for well under £10k.