Well Sam, I don't have one of the CB models but I do have 3 of these CA's laying around along with a few spares. How did one go about building one of these up into a racer back in the day? I kind of had hopes of attempting to turn my red early CA into quasi looking CB92 replca on some level. Wasn't going to go as far as getting one of those tanks but wanted to get some flat bars, race seat, cut off bent rear fender, swap in new fender in front, rearsets, flyscreen, you know, stuff like that.
I had the same problem Kev.
When I first started racing them I had a C95, not quite as hot in the engine department as the CA/B95.
At the time my mate John had a fully race kitted CB92 and he only weighed 112lbs, it was a flyer.
When both bikes were paired right down for sprinting they both weighed the same (all the road clutter off and fitted with C100 Cub front ends).
My mate John was a full second quicker over the quarter mile due to his weight and about 4.5 bhp more than me.
In the mid 70s John lost his life when he crashed a TDIC Yamaha at a sprint in South Wales.
I was Racing in Holland at the time and was gutted to hear the news on my return.
I only did one more meeting after that, Also on a Yamaha and on the same track then hung up my leathers.
At the start of the 90s my son had got into bikes and he dragged me back into it.
I resurected the 95 and set about determined to make it equal Johns times and speed,..16sec quarter and 99mph top speed on a flyer.
I am now at the stage where I can't get my weight down, instead I have managed to get the weight of the bike down to 139lbs.
The motor is turning about 18bhp (not been on the dyno yet but quite confident) and is not in the clapped out state that we used to run them in.
All of the development of the motor has been on eighth mile strips, a distance that we never ran over in the 60s, but the bike feels a lot more livley to what it did.
I decided to build a second bike that was capable of stoping and going round corners,and the result was a bike like you are asking about.
I fitted aloy rims to the stock 6" brakes (CB92 to costley and hard to locate) and made a fibre glass mold from a tank loaned to me and turned my own glass tank out from it.
A friend had a seat mold and made me a seat base as in the race kit and I managed to get a set of CB92 foot rests and a brake peddle.
Bollocks to spending a fortune on rocking horse #$%* CB92 stuff when the C stuff can be made to go just as quick.
PM me your address Kev and I'll send you some pics to give you some Ideas.
One thing you can't do is run a front fender as the Benly Sports was conected to the large front brake.
Helping Chris develope the CR750 and work on my RS175 has sadley pushed the Benlys to the back of the workshop but they will return
Sam.