For Sale: Spectrum track bike made by tom Kellogg

     This is a really cool bike we got recently. it is a Spectrum track bike made by Tom Kellogg in Trexlertown, PA. Tom is well known in our area and world wide for his bikes. This example is no exception. Top notch construction for the velodrome. It is also equipped with Shimano Dura-Ace 10 pitch drive train and hubs.
What is so special about 10 mm pitch parts?
      Well, most bike (drive) parts in the world are designed around a 1/2 inch (12.7 mm) pitch chain. That is the centre to centre distance of the chain pins. A  long time ago, chain pitch was 1", but that was a different chain design. Somewhere in the 1970s, the Shimano people got the great idea to reduce the chain pitch to 10 mm. The chain rings and the sprockets became smaller and the chain shorter, resulting in less weight.
Dura Ace 10 mm pitch series were introduced in 1976.
      Somehow, the 10 mm pitch series never convinced the cycling world and the parts weren't a big success, despite the world championship match sprint (1976) of John Nicholson from Australia with these components. There is a story, that the Keirin federation banned these parts, because the riders would have an unfair advantage. Somewhere in the 1980's, the 10 mm pitch series were discontinued.
      Not only is the chain  unique. Of course, chain rings and sprockets have to match the smaller pitch and are different, too.  Because the chain rings and sprockets have a smaller pitch, but the same number of teeth as regular components, the diameter is smaller. That makes it necessary to make the bolt circle diameter of the cranks smaller, as well as the diameter of the threads on the rear hub.
Head set and bottom bracket set are the same as the normal 1/2" pitch Dura Ace track series.

The details of this bike are as follows:

• 52 CM CTC seat tube
• 56 CM CTC top tube
• 31" standover height
• Shimano Dura Ace 10 pitch hubs laced to Mavic Gel 280 tubular rims with tied and soldered double butted spokes.
• Shimano Dura-Ace 10 pitch drivetrain (rear cog, cranks 165mm, chain ring, and chain)
• Shimano Dura-Ace bottom bracket.
• Shimano Dura-Ace NJS head set
• Shimano Dura-Ace seat post
• San Marco SuperCorsa saddle ( Concor)
• Shimano Dura-Ace aero stem (110mm) extension
• Suntour Superbe track pedals
• Cinelli Criterium 39CM wide bars

     The bike is painted a magnificent metal flake emerald green and has all the original decals and the previous owner's name "Charlie" is hand painted on the top tube. Serial number: 84 280 30 45 is stamped  on the BB shell.
     please email: bikeville@gmail.com for price and any questions you may have. Thanks!

Saddle supports

Stayer, or motor-pace, bicycles have some specific parts from the custom geometry to allow a smaller front wheel and reverse rake fork to the large front chainring to provide the gearing to race closely behind a motorcycle. Another addition is the saddle support. Affixed to the top tube and then to the nose of the saddle, it offered support to ensure the saddle did not shift an any direction, especially then the bicycle encountered some steep banks at some velodromes.

Below is a beautiful unrestored early 1930s Malvern Star Stayer bike from my friend's blog. We sold it a couple years ago.  I highly recommend following it if you like old track bikes, and stayers. -
http://vintagetrackbikes-corbettclassics.blogspot.com/

from http://vintagetrackbikes-corbettclassics.blogspot.com/

Here are for different saddle supports. The two bottom examples are manufactured by Cyclo(UK) from the 1940s-1950s. I am unaware who made the other two. They are not for sale.

Indoor Velodrome to be built in Philly Suburb, Maybe

Coatesville, PA to have the first indoor Velodrome on the East Coast. Well, they are talking about it again. It would be a great way to get more people into track racing, and get some of these Fixies off the street and to good use. They have proposed it a couple times, maybe this time it will stick.
Like I have always said- "you have to put it out there, for them to put it in there." Never seemed more appropriate.

News story HERE on the Philly News.com