Who made this bicycle frame?

put up a picture in fixya post of the bike you have there

could be a vintage then bike made else where
is it like this badge
these badges are sold on ebay ..may have been put on your bike


or modern


Jamis Bicycles is an American distributor of bicycles, designed in the USA and built in China and Taiwan. Jamis was acquired in 1990 by its parent company, G. Joannou Cycle Co. ..

. Jamis sold the Dragon, its mountain bike, in 1993, featuring a fillet-welded, hand-polished tube frame, Rock Shox front suspension, XTR ...


Jamis - Jamis is the house brand of G. Joannou Cycle, a long-time distributor of bicycles and accessories. The bicycles are designed in the U.S. and sourced from Asia.

This is from the
Trek Aluminum Series 420 The model is TBI 0405.
Nice bicycle, but I wish they had included a chain guard as standard.
They were gray paint with a red TREK logo on the drop tube in the original finish.

This is from the
Trek Aluminum Series 420 The model is TBI 0405.
Nice bicycle, but I wish they had included a chain guard as standard.
They were gray paint with a red TREK logo on the drop tube in the original finish.

down load from internet

THE TRICK TO SWITCHING OVER THE OUTLET FOR THE PUMPED AIR IS BACK PRESSURE. IF WHAT YOU ARE FILLING IS COMPLETELY FLAT, BLOW INTO THE FITTING YOU WANT TO USE AND IT WILL SWITCH OVER.

What kind of valve do you have on your bicycle tires - standard (like a car) or Presta (narrow with manual screw down valve)? If you unscrew the head of the pump you should be able to reverse the rubber gasket to fit each type - wide for standard and narrow for Presta.

Bigger.

As you can tell, sizing is a matter of interpretation and no bike should be purchased prior to trying it on for size. Seat tube length is only part of the equation and can be modified simply enough with a longer seatpost. Your torso, arm length and comfortable or desired riding position also play into it. Sloped tubing and other factors in modern design toss the old seat tube measurement out as a standard anymore.

Your rear end, feet and reach determine the fit. The rest just connects the dots.

http://www.sheldonbrown.com/frame-sizing.html

Do you have a presta or schrader valve on you bike tube? A schrader is a standard valve, presta has a little nut that has to be loosened to add air. Your pump has both heads or adaptors (I don't know which model you have). You should have instructions with your pump to explain how to use it, if not go to www.ehow.com and you can read all of the instructions, no use me repeating what you can read on your own.

I just took a look at mine, which is a 1990 "The Machine" model, and the easiest way I can tell you they although they are made with round Columbus tubing that has been FLATTENED on the sides of the top tube and the down tube where it joins the steer tube giving the tube more of an oval shape. The top tube is also flattened on the top and bottom where it joins the seat tube lug. I don't recall anyone else doing this. Mike.