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PostPosted: Wed Dec 08, 2010 10:22 am 
retrobike rider
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Joined: Wed Jul 07, 2010 11:19 am
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Location: Worthing, W.Sussex
Hi all,

I have recently aquired a Raleigh c1986 in Team Panasonic colours. It is entry level 18-23 Hi-ten. But it does have Oval profile down and seat tubes. 8)

And this has got me wondering. I know aero profiling is now the norm on a lot of bikes, but was there much about pre '86, and further BITD? I guess there were seatposts, concealed cabling, and some very dodgy head gear :roll: . Anything else?

So i would very interested to see any examples members have, along with dates, and any remanisances you might have about riding with aero profile bikes, parts, or kit.

TTFN,

Dave


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PostPosted: Wed Dec 08, 2010 8:20 pm 
rBoTM Winner
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Location: Northamptonshire
Columbus Air and Reynolds 531 Speed Stream were oval section tube sets that were available in the early 80's, my 1985 Roy Cottingham is made of Columbus KL which has teardrop seatstays and slightly flattened profile fork blades.

The late 70's / early 80's were a time for innovation especially when low profiles came along, do a search for 'Martin Pynes mini bike' for an example of this over on www.timetriallingforum.co.uk Check out the forks with the custom made brakes behind the crown :D


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PostPosted: Wed Dec 08, 2010 10:04 pm 
Concours Judge
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Joined: Wed Jul 06, 2005 3:59 pm
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Location: a proper EU country
This Koga-Miyata FullPro-S frame is showing many aero influences and dates from before the aero era took off. Serial# tells me it is from 1977. Rare, not present in any catalogue and not much known of. Maybe it is even a one off for display on bikeshows, but without any doubt it is at least part of a very small run.

The full bike came with several drilled out parts for the purpose to save weight. The 3T stem had drillings in the shaft, a drilling from the back through the actual stem and there was even excess material shaved off the bolt head flange...

The aero features of the frame:
- Aero crown
- Shifters on top downtube
- Internal routing for brake AND gear cables. Rear brake cables exits through seatpost!
- Low profile seatcluster, milled stainless binder bolt
- Recessed brake calliper mounting bolts, milled stainless steel
- 63mm wide bottom bracket shell

Image

Image

exit gear cable front
exit gear cable rear
crown engraving

I will be rebuilding it with early Dura-Ace groupset including Crane mech.

In 1981 Koga introduced the FullPro-L with several aero influences. A year later a completely fillet brazed FullPro-A with drop shape tubing was introduced. Both FP-L and FP-A were equipped with the full Dura-Ace AX groupset.


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PostPosted: Wed Dec 08, 2010 11:29 pm 
retrobike rider
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Joined: Sat May 29, 2010 3:44 pm
Posts: 1508
Location: Leeds
This frame was for the Shimano 600 AX groupset so dates it to about 81/82

Ovalised seat and down tube. SR Racing and Made in Japan, it is the only one i've seen like it.

Image


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PostPosted: Thu Dec 09, 2010 11:46 am 
retrobike rider
retrobike rider
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Joined: Wed Jul 07, 2010 11:19 am
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Location: Worthing, W.Sussex
Thanks guys.

Loving the Koga-Miyata 8)

Keep em coming.....


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PostPosted: Thu Dec 09, 2010 12:09 pm 
Old School Grand Master
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Joined: Wed Jul 25, 2007 2:04 pm
Posts: 3364
Location: Completely in the dark, thanks to me good mate Terry....
Piperdave wrote:
Hi all,

I have recently aquired a Raleigh c1986 in Team Panasonic colours. It is entry level 18-23 Hi-ten. But it does have Oval profile down and seat tubes. 8)

And this has got me wondering. I know aero profiling is now the norm on a lot of bikes, but was there much about pre '86, and further BITD? I guess there were seatposts, concealed cabling, and some very dodgy head gear :roll: . Anything else?

So i would very interested to see any examples members have, along with dates, and any remanisances you might have about riding with aero profile bikes, parts, or kit.

TTFN,

Dave


Raleigh had 3 other fairly cheap 'n' cheerful bikes in the range with aero tubing at around the time yours was made; the Record Sprint and Quasar (I used to own one of those) with Reynolds 501 Cr-Mo main tubes and the Pulsar with 18-23 high-tensile tubing. The Pulsar and Quasar were notable for the use of Shimano Adamas AX aero brake levers at a time when having cables under the bar tape was a relatively new idea.

David


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PostPosted: Thu Dec 09, 2010 12:42 pm 
King of the Skip Monkeys
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Location: Moomin Valley
I had the record Sprint as my first real road bike.

Ovalised 501 tubing

a recent tip find:

Image


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PostPosted: Thu Dec 09, 2010 1:05 pm 
Old School Grand Master
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Joined: Wed Jul 25, 2007 2:04 pm
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Location: Completely in the dark, thanks to me good mate Terry....
legrandefromage wrote:
I had the record Sprint as my first real road bike.

Ovalised 501 tubing

a recent tip find:

Image


The Record Sprint must have been the deluxe model of the bunch - all of the others only allowed for one water bottle and no pump mounting stud on the head tube.

David


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PostPosted: Thu Dec 09, 2010 2:21 pm 
rider | rBoTM Winner
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Joined: Fri Jan 25, 2008 1:42 pm
Posts: 5133
Location: Wakefield, Yorkshire
In the mid '80's I had a Low Profile bike built by Steve Elsworth. Steve was one of the MKM builders in the 70's and built their lugless frames which he tended to specialise in. My LoPro was lugless, built from Ishiwata tubing (019? the very light one?) and was a dream. I didn't ride it much sadly and this photo is my only tangible memory of it. Wheels were 28 spoke Wolber 18mm rims and tubulars which could be pumped up to some astronomical pressure (150-180 psi?!) with the then fashionable Shimano aero levers and pedals, Dia-Compe aero brakes etc. I wish I could find it again, I'm sure it's still in existence owned by somebody in the local club.

I must admit that the first couple of times riding it felt very strange without there being any handlebars and stem in the 'normal' place and it took a little while to feel confident.

The reason the photo is blurred is because I was going to fast for the shutter speed........................... :roll:

And the polka dot jersey is because there are lots of hills on Yorkshire time trial courses. :wink:

Still wearing socks though, not very aero :oops:


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PostPosted: Thu Dec 09, 2010 8:39 pm 
Retro Guru
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Joined: Sun Jan 11, 2009 10:50 pm
Posts: 612
Location: Lazy Town
[/quote]

Raleigh had 3 other fairly cheap 'n' cheerful bikes in the range with aero tubing at around the time yours was made; the Record Sprint and Quasar (I used to own one of those) with Reynolds 501 Cr-Mo main tubes and the Pulsar with 18-23 high-tensile tubing. The Pulsar and Quasar were notable for the use of Shimano Adamas AX aero brake levers at a time when having cables under the bar tape was a relatively new idea.

David[/quote]

The Pulsar, Quasar, Team Cadet etc with "Aero " tubes, were all in fact built with round tubes. The entire frame was put into a huge press, machine and squashed. The process literally shook the ground !!!


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