The CD2a is born. Almost completely new bike based on the early "sloper" model CB/CL175

BoatAnchor-1.jpg (29654 bytes) Bare frame before de-tabbing.

21 lbs.  (just the frame of course)
CD2A-Frame-fitment-1.jpg (27138 bytes)  

 

The "new" CD-2a.
New chassis is from a CB160 sport. Most parts bolt right on, others will require some modification. Steering stem is about 7mm too short so I will move it up in the bottom clamp and reweld. Fiberglass tank fits better on this frame too.

CD2A-Frame-fitment-3.jpg (27956 bytes)  

 

Here we see the engine test fitted to the chassis. Engine is now a hi-bred combination of "sloper" and vertical 175 parts.  New intake manifolds will have to be fabricated and a new exhaust system.

I do not plan on bracing the frame except some additional sheet metal added to the swingarm pivot area. I will reweld all the seams and joints.
Twin-175-1.jpg (51507 bytes) A couple of matching CB175 Sloper race bikes being put together.

Bike on left in photo uses a CB550/4 front end with a Suzuki T500 brake. Bike on right uses a CB200 front end with a CB160 front brake.
CD2a-1.jpg (52800 bytes) The chassis on the left now in race trim.

Fiberglass tank and seat. Dunlop KR825 race tires.