It's aluminum. However, the cross check has 132.5 mm spacing to take both road and mountain hubs, and the rob roy is steel, so it might not mind being cold set to 135. They're both 'cross bikes though, so no steep angles and tons of clearance.

Is this going to result in the Kogswell Model BC (by committee)?

(I think you meant Model BK - by kommittee)

And, yeah, by committee is right.

Half our frames are designed by way of collaboration. I like to give people what they want.

The other half of the time I just make what I want.

That and I'd like to get a handle on what you all are thinking.

brake drillings are fine (at least in the rear). toe clip overlap isn't necessarily required, but i feel track bikes should have a shorter front end than road bikes, preferably equal to or no more than 1.5cm more than the seat tube. chainstays should be less than 40 cm. 35-40 degress of fork offset (depending on size of frame and head tube angle). no less that 74 degree head and seattube angle (again, that depends on the size of the frame). oh, and clearances should allow for nothing larger than 23mm tires.

my opinions based on what i will get when purchase a custom/BTO frame.

apparently the frameset will be still 135, but when bought as a complete bike the frame will be spaced 120. not sure why they'd bother - maybe because they have started making track cranks too.

I am just lovin' mine to death, but there is no way you can consider this a track bike (or any other 135 spaced frame for that matter)

marty

you are looking for a frame with fork ends as opposed to dropouts, aren't you?

I'm really confused by 29ers... How could they be the same size as 700c if 700c is supposed to be a little smaller than 27" wheels? Is "29ers" just a nickname?

^ "marketing term" not "nickname"

BTW 27"s aren't 27" either

29 is nominal tire diameter, just like 26" or 27". They aren't rim sizes. Yes, it's kind of silly.

Well, personally I think my Steamroller is about perfect for a road going fixed gear bike. I don't want a track style bike at all. The Steamroller handles wonderfully and I can run a long reach front brake and fatter tires. The only things I'd change are adding eyelets for racks and fenders although that tends to mess up the clean look.

Hell, 700c is nominal tire diameter.

700C is a rim+tire combo that's supposed to be 700mm across. Do the math, that's a 39mm tire if you really had a 700C tire. Yowza.

29ers are supposed to be about 29" with a 2.3" tire.

27" calls for a 1-1/4" tire.

26" means 1.75" tires.