What are the numbers for a track chain/cog relating to for dimenisions?
[2007-09-15 10:49:59]

Q: Ive seen sizes for track (fixed gear) cogs that say to use a 1/2" x 3/32" and 1/2" x 1/8". What do these numbers mean? Or even simplier, will a standard Shimano 10spd chain fit either of these? I'm trying to convert my tri bike

A: The numbers you're seeing are the pitch (distance between roller pins) and width (from the inside of the plates). 1/2"x1/8" is a wide standard for track and bmx bikes. All modern derailleur systems use 1/2"x3/32", though the outside

Yamaha Press Conference Transcript: Data Sharing Stopped ...

One of the most heavily-attended press conferences at Sepang was the Yamaha affair, at which Yamaha's MotoGP group leader Masahiko Nakajima, Racing MD Lin Jarvis, team bosses Davide Brivio and Wilco Zeelenberg and the two stars of the show, Valentino Rossi and Jorge Lorenzo faced questions from the assembled press. The subjects covered a lot of ground, from Wilco Zeelenberg's first day on the job, to Yamaha Indonesia's stepping up with sponsorship, to whether post-race burnouts are things of the past. But more pressing subjects were also covered, such as the end to data sharing between Valentino Rossi's and Jorge Lorenzo's sides of the garage, whether Yamaha thinks they can retain both their riders, and the two riders' impressions of the new YZR M1.

All these and more are covered in the transcript of the press conference, which follows below, thanks to our friends over at Superbikeplanet.com : 

Q. To MN: Are you satisfied with the development of the M1?

Masahiko Nakajima: Difficult to say! It's too early to say how the development is but so far, on the first day of the winter test, we have quite good results and we are quite satisfied.

Q. To LJ: This morning you announced new sponsors for the FYT. There is a still a critical situation in the global economy; how is Yamaha's situation and does this situation affect the Tech 3 Racing team?

Lin Jarvis: Yamaha's situation globally at the moment is difficult because, like every global company, they are facing difficulties due to the economic situation. We are struggling, I would say, in the business in Europe and America, but the business in Asia is quite positive for us at the moment so it's not by accident that one of our new sponsors is actually Yamaha Motor Indonesia, and we are carrying their marketing slogan on our bikes this year. The slogan 'Semakin de Depan means 'Always One Step Ahead' so this is showing that this region, the Asian region, is one of the growth areas for motorcycles. So we are positive for our future and we will be putting a lot of effort into the Asian zone, and it is not by accident that we're here today launching the team in Asia. We also have an extension of our Fiat group sponsorship because we're joined by Iveco, so another member of the Fiat group is joining us this year. I think we will be in a good condition to fight for the championship and we will do our best again.

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