This is a 1974 CZ400, this bike was built by my uncle Bob Bertrand, Bob has been a welder and fabricator for 30 plus years, he is the best and does all our welding needs and then some. Bob has been out of racing for a good 20 yrs or so and we got him intersted in the vintage again. Once the bike was purchased, look out. This bike also has extensive mods to it, the list grew as Bob owned it. It has a custom alloy tank that just looks killer, it has a cylinder reed conversion, mikuni carb, electronic ignition, snail pipe, YZ front wheel and brakes, titanium hardware, custom made chromalloy swingarm, proggressive shocks, and a ton of hours and detail. I got to ride this bike and I will tell you it is only a 4 speed but that is more than enough, it runs awesome, handles great, and is one light weight vintage bike. I believe he weighed it at just over 200lbs. The only problem I had with it, was keeping the front wheel on the ground. Love the bike, keep up the good work Bob. Thanks again for looking.