CA10RR and CA10R engines, different markets?

[spanersc]

Hi. Does anybody know if all 'CA10RR' prefixed Road-Rocket engines were for export and all 'CA10R' engines for the UK market or were they a mix. Any help much appreciated. Thanks, Peter

[jfligg]

Hi
      I live in Canada and my 56 engine is a CA10RR.  I hope this helps.  Jeff

[minibsa]

 Hi, my CA10RR lives in Australia !!  Bob.

[trevinoz]

I was always under the impression that Road rocket engines were CA10RR and Super Rocket engines were CA10R.
Interesting.
  Trev.

[rocket man]

super rocket engines are DA10R

[trevinoz]

Not so rocket man.
                                 The first Super Rockets were CA10R.
The DA10R engine was introduced in 1960.
  Trev.

[rocket man]

ok trev one to you mate

[spanersc]

Hi Again. Interesting to read to replies. Perhaps now it seems that all export Road-Rockets had the 'CA10RR' prefix whatever country they were destined for?  Does anyone have a genuine UK R/Rocket with the 'RR' prefix?  I have some early 55 R/Rocket (USA only) crankcases without the 'RR' which may prove that they could be either 'CA10R' or 'CA10RR' whatever market they were sold to

[tombeau]

My engine is a CA10RR
I bought the bike in Britain, but have no idea of the history of the engine.
Iain

[mark]

I have two 55 crankcases and one 57, all from the US I believe and they are all CA10R.

  Mark