Classic & Vintage - duomatic

I recently acquired a CCM GT-101 Duomatic. It's going to need some work, but I think it'll be worth it given the duomatic hub and sporty angle of the frame. The previous owner said he thought it was about 45 years old, but I can't seem to find any information about this model, or CCMs in general. Anyone familiar with old CCMs?

Post us a picture! If the Duomatic is what I think it is (a 2 speed coaster brake system), I would date it at around mid to late 60's. I remember the 2 speed from when I was a kid, don't remember the GT model, though. The CCM bikes were to Canadians like Schwinn was to Americans, everybody had one and thought they were quality bikes. They also made hockey equipment, so CCM was a big name to Canadians. I don't know of any CCM collectors sites, but there's gotta be something out there!

In the U.S., I believe alot of folks refer to these Bendix transmissions as "kickbacks." Oldroads.com may have some data on when they were introduced (early 1960s, I think).

The "Duomatic" may also be a Sachs two speed coaster brake hub. There are two types. One is a kickback two speed, where shifting is accomplished by doing a "kickback" with the pedals. The other was a true automatic that would shift once the hub was spun at a certain RPM. "Duomatic" seemed to maybe have been a trademark for one or both of these types of hubs by Sachs.

Here's the CCM Duomatic (I hope the attachment works - I'm new at this). As you can see it's a ladies or girls model (I'd like to find the matching mens model if they made one). It has 26 inch wheels and an unusual angle to the front of the bike. The hub is a 2-speed kick-back type with the brand name "Tornado Duomatic" on it. CCMs were very common here in Canada - we all had one in the 60s - but I don't remember this particular model.

The two speed kick-back hubs that Schwinn used in the 60's were manufactured by Bendix. They have three grooves or depressions around the circumference of the center of the hub body that are painted either yellow or blue, depending on the model / year of manufacture.

45 years old would make that bike late 50's early 60's. From the looks of it, I'd say early sixties...

"Tornado" I haven't heard of. "Torpedo" on the other hand was used by Sachs (and still by SRAM).

If you can read German, take a look at this site of various Sachs two speed hub gears:
http://www.3gang.de/3-gang/2-gang_naben.htm

"Tornado" I haven't heard of. "Torpedo" on the other hand was used by Sachs (and still by SRAM).

If you can read German, take a look at this site of various Sachs two speed hub gears:
http://www.3gang.de/3-gang/2-gang_naben.htm

Thanks for the info. I'll put my glasses on and look at the hub again.

Hello

I purchased a CCM GT-101 mans bike last summer at a garage sale . I have not been able to find out what year it is either . It cleaned up well . I put over 400 miles on it . It is a great bike . I made a few changes . I will try to post a picture .

here goes

Hello

I purchased a CCM GT-101 mans bike last summer at a garage sale . I have not been able to find out what year it is either . It cleaned up well . I put over 400 miles on it . It is a great bike . I made a few changes . I will try to post a picture .

D.J. - Did you know there's a "jokes and humor" board?

Hello

I purchased a CCM GT-101 mans bike last summer at a garage sale . I have not been able to find out what year it is either . It cleaned up well . I put over 400 miles on it . It is a great bike . I made a few changes . I will try to post a picture .

btw - That would be more of a man's bike if you did that with a fixie. :D