Re: [CR]1975 Peugeot PR10 Geometry


Example: Racing
Date: Thu, 18 May 2006 13:20:14 +1000
From: "P. Lynn Miller" <lynnmiller@optusnet.com.au>
To: Classic Rendezvous <classicrendezvous@bikelist.org>
Subject: Re: [CR]1975 Peugeot PR10 Geometry
References: <446AF517.5090109@optusnet.com.au> <012301c679b4$d8d3a120$24ce2ba2@corp.rfweston.com> <446B3BBC.6020702@optusnet.com.au> <001601c67a20$1b52ef40$0a00a8c0@corp.rfweston.com> <446BDA91.2070307@optusnet.com.au> <002401c67a27$f6814ce0$0a00a8c0@corp.rfweston.com>
In-Reply-To: <002401c67a27$f6814ce0$0a00a8c0@corp.rfweston.com>


Charlie,

The numbers all work with no TCO, just by a few mm's. Anyone else on the list with an opinion on the PR10 or PX10, if it has similar geometry?

This geometry is almost 'time-trial' like, moving the rider forward over the BB. It also produces a low trail geometry of about 33mm, a lot less than the current accepted standard of 55mm - 60mm.

These bikes would have to handle uniquely. Is that good or bad?

Thanks,

Lynn Miller Sydney, Australia / Charles T. Young wrote:
   > This is fascinating and certainly counter to what I would have expected. It would be interesting to find if other listmembers can confirm this and their opinions of the ride. I will have to throw a leg over it tomorrow. Haven't ridden it with a good wheelset w/ 700c tubulars to get a good basis for comparison with most of my other similarly shod bikes. It is currently fitted with 27 inch Rigida alloy rims and what look to be 1 1/8" tires.
   >
   > My PX-10 is a smaller frame and I'm guessing the angles are more slack.
   >
   > Charlie
   > ----- Original Message ----- From: "P. Lynn Miller" <lynnmiller@optusnet.com.au>
   > To: "Charles T. Young" <youngc@ptd.net>
   > Sent: Wednesday, May 17, 2006 10:23 PM
   > Subject: Re: [CR]1975 Peugeot PR10 Geometry
   >
   >
   >> Charlie,
   >>
   >> Thanks for that. I found some photos on the net including photos from the Peugeot catalogues which are linked from CR. I do not think that your angles are off by much, since I am coming up with the same angles from the photos. If you want to get a photo, it needs to be 'square on' is you know what I mean.
   >>
   >> Does the PX10 have the same geometry? These are very unusual angle, that may be the reason why this fellow believes he has never ridden another bike like his old PR10. Interesting.
   >>
   >> This geometry goes against everything that is currently in vogue. Hmmm...
   >>
   >> Thanks for your time,
   >>
   >> Lynn
   >>
   >> /
   >> Charles T. Young wrote:/
   >>> /These were 76 deg head and 75 deg seat angles - it doesn't look nearly that steep (and there is no sign of front end impact damage). Head tube doesn't look overlong as it does on track frames with steeper angles. I dunno, it might be better to get a photo and have you take it off from the image.
   >>>
   >>> Linear dimensions are center to center in cm unless otherwise noted:
   >>>
   >>> ST 58
   >>> TT 58
   >>> Wheelbase 1018
   >>> Chainstay 42.5
   >>> Fork rake 50mm /