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- From: npet@bnr.ca (Nick Pettefar)
- Newsgroups: rec.motorcycles
- Subject: Re: All-wheel drive???
- Message-ID: <1993Jan25.175935.7067@bnr.uk>
- Date: 25 Jan 93 17:59:35 GMT
- References: <1jnmm3$qkg@agate.berkeley.edu>
- Sender: news@bnr.uk (News Administrator)
- Organization: BNR Europe Ltd, Maidenhead, UK
- Lines: 49
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-
- Michael Robinson (robinson@cogsci.berkeley.edu) wrote:
- : I was talking to a friend the other day, and he told me about a motorcycle
- : show he went to a while back.
-
- Yes, I've been to one of these. Too many bikes though.
-
- : He claims he saw an old Spagthorpe prototype that had a driven front wheel.
-
- The idea was later stolen by Yamaha for an experimental trail bike. This bike
- used a cable drive to the front instead of the steam drive originated by
- Spagthorpe. One of the drawbacks of the cable drive is that if the front
- brake is applied, the cable drive tries to straighten out - resulting in the
- rider being thrown violently from the bike. This was why the design was
- limited to dirt-bikes, the riders are (more) used to being thrown from their
- bikes and don't complain so much.
-
- : The goal behind the driven front wheel design was similar to that of
- : 4-wheel drive cars--increased cornering stability, and better control
- : on surfaces with poor traction.
-
- Fine, fine but see above. The steam-powered front-wheeled bike was fairly
- dangerous and certainly too dangerous to be used in the States where it's
- citisens have that nasty tendency to sue somebody everytime they encounter
- even a reasonable amount of danger.
-
- The Spagthorpe was entered in the Ulster Trials but the local Police
- confiscated it, thinking it a device of the IRA.
-
- : I was concerned about the effect of the additional unsprung weight in
- : the front wheel, but my friend just said, "Hey, it's a Spagthorpe."
- : Good point.
-
- Yes, of course. Unsprung weight is a _good_ thing. It helps keep the tyre
- on the road and the heavier the weight, the larger the contact patch.
-
- : Apparently these bikes were never made in quantity, because
- : the cost of British union steamfitters would have made production bikes
- : prohibitively expensive.
-
- This is just provocative right-wing slander.
-
- : --
- : Michael Robinson
-
-
- Nick (the Histo/erical Biker) DoD 1069 Steamfitters & Hackers Union.
-
-
- M'Lud. "Chuff chuff"
-