Donnerstag, 13. August 2009

Cinelli track bike from 1960

Cinelli track bike from 1960


This bike from around 1960 could be traced back to Hans Mangold a teammate of Rudi Altig in the late 50ties till Rudi Altig turned pro in 1960.




This bike is almost in the condition of the 60ties, with the exception of the Continental Sonderklasse 175 pista tubulars which are from 1985 and the Unicanitor M55 saddle, as the bike found it's way from the velodrome to the first collector. From practical experience I know that old track bike were used till the mid 80ties by the clubs as pool bikes for the events on the velodrome.


The same destiny has hapened to the Schwinn Paramount track #E74376 - May 1974 which has been used till the turn of the millennium in Rochester Hills,Mi velodrome.




Details


the headset has a additional pinch-clamp device which could be seen in those days.




Components


the bike has a full Campy track outfit, with second gen cranks with raised lip (eye-let around the pedal hole) rotating around a 'Con Sfere 3/16"' bottom bracket, 'NO Record' Record hubs , pista pedals con dente with spindles which have the 1st gen O-ring seal, and skip tooth (1" pitch) drive train.





The wheels are 3 cross laced without the later popular tied and soldered crossing of the outer most spoke crossing. The Fiamme trapezoid rims were the choice of many riders.







Samstag, 11. April 2009

TEXTIMA Track bike SN#223

One of the rare TEXTIMA's who survied the re-painting during the GDR and after reunion


Montag, 9. März 2009

Schwinn Paramount May 1974 SN#E74376

Schwinn Paramount 1974 SN#E74376

Classy track bike with complete Campy Groupo, Cinelli steel bar and stem, Schwinn approved french (probably MAVIC/Super Champion) rims and seta tubulars.

The gear ratio is the mot used 49 by 15 . I am not sure that the Brooks Vitesse is the original one from 1974.

Heavy duty Campy rear drop outs.

Montag, 2. März 2009

Cinelli M71 clipless Pedals 1974

The 4th  generation of the first modern clipless pedal launched in 1970. 



Mittwoch, 18. Februar 2009

Scorpio 1988


Scorpio 1988

A luged steel frame made in a small shop  near Frankfurt  / Germany by  Bernd Gaessler . All frames he made  had custom geometry due to the manual manufacturing process. He used for his frames all kind of commercially available light weight tubing from Reynolds and Columbus.






The bike is equipped with the first generation Campagnolo C-Record groupo and Campagnolo Record pave rims. The cranks are polished and chromed for optical reasons. 

Donnerstag, 12. Februar 2009

George Hincapie Team Columbia 2008 Giant Prototype

George Hincapie Team Columbia 2008 Giant Prototype size XL spare frame/bike with uncut seat post / mast

This is a new never build up Giant Team Columbia (High Road) 2008 prototype of the size XL. Only the SRM wire harness is assembled. The short stem is attached to hold the fork / headset bearings in place.

The geometry is to the Giant stock dimensions. I have seen on the smaller sizes (S and M) that the top tube was around 15 mm longer than stock. The stock frames had a designated size call out SS and MS means Small Standard (Stock) and Medium Standard Stock dimensions.


But on all frames of 2008 is the drive side BB configuration of the 86.5mm by 41mm standard change in the way that only the generic standard BB ball bearing 37x25x6 [mm] can be pressed in. The ball bearing was machined (two longitudinal cuts 180 deg apart with the hacksaw to release the press fit by reducing hoop stress) out of the Standard DA outboard cups. In the picture above you can see the Ball bearing pressed in and standard plastic bushing.

With this change the clearance get bigger between the SRM power cranks and the BB housing, and the O.D. of the bearing has firm contact alignment to the machine metal housing, instead to be embedded into a plastic housing with 2mm wall thickness.


On the non-drive side you see the standard configuration of the 86.5 by 41 standard and the aluminum insert of the drive side with significant higher wall thickness.

The wire harness for the SRM system which enter into the frame in front of the BB, in the
hole foreseen for the outlet of the shifter cable, exits the frame near the front brake cable stop.

If the SRM cable is now routed parallel to the brake cable in a heat shrinkable hose it
looks like a wireless system.

An update will follow how it looks with the SRM Power cranks, the speed and power sensor in place.


LINK: http://www.georgehincapie.com/gallery/

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