Pre 70 eligibility issue

[VMX60]

My sidepipe fitted with a Bassani down pipe To each his own everybody has their own idea 

[090]

Nice! What brand of tank is on it?

[VMX60]

The tank is Alloy Husky 125cc most models had the same tank in the late 70s
My take on what my CZ race bike should look like.
Have seen the Photos of the factory sidepipe CZ runnng down pipes in about 1967
Cheers

[GMC]

I have been asked a few things like this over the years, I always describe them as "Grey area's"
Depends how anal people want to be on the day.

One thing about doing this with the CZ's though is that the frames are different.

The early frame has the front downtube bend and go underneath the motor where the side cradle tubes bend and join into it.

The later frame has the front down tube straight and finishes just before the bottom of the engine whereby the side cradle tubes go further forward and bend upwards at an angle to meet the donwtube.

What this means is the downpipes on the later frames can fit nicely between the side cradle tubes and so it can tuck up nicely.

On the early frames however that front down tube that bends underneath the engine gets in the way forcing the pipe lower to the ground.
It can be done, I made a pipe like this about 11 years ago but the front section sits about 40 -50mm lower on the sidepipe frames.

I have blown up some of VMX60 photo's to help explain my words.
Early Sidepipe frame



Later 72? onwards frame

[firko]

That's interesting Geoff. My thoughts on fitting a downpipe to a 69 360 are purely based on the general perception of what the bike is. The major identifying point of a '69 CZ is its pipe location, hence its "Sidepiper" moniker. It's what defines the bike. While I accept and respect Brads dads right to do whatever he likes with his bike, I'll still take the devils advocate role and argue against it purely on aesthetic grounds.

[GMC]

Yes Mark, I agree.
That is what defines the model
Funny how everyone want something different to what they have.
I often get calls from guys that want to change their down pipe to an up pipe or change their up pipe to a down pipe.
Even guys with moderns, post 2000 ask me for downpipes