The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => A7 & A10 Engine => Topic started by: A10Boy on 02.06. 2023 21:42

Title: Super Rocket Valve Collets [Split Cotters]
Post by: A10Boy on 02.06. 2023 21:42

Hi Guys can anyone help? I need a set of Super Rocket Collets and am struggling to find any for sale, SRM is out of stock too. I bought some from fleabay but they don't fit properly so are useless. Does anyone know of an alternative to the same spec?

Sorry if this has been asked before I did search it.

Thanks in advance

Title: Re: Super Rocket Valve Collets [Split Cotters]
Post by: DazRR on 07.06. 2023 17:03

Hi, I had the same issue, found that George Prew has some in stock, give him a go mate.

Title: Re: Super Rocket Valve Collets [Split Cotters]
Post by: muskrat on 07.06. 2023 20:24

G'day A10Boy.
https://tinyurl.com/5d5vd3u4 shows 9 in stock.
https://www.vintage-motorcycle.com/en/parts/bsa-65/bsa-valve-cotter-pair
Cheers

Title: Re: Super Rocket Valve Collets [Split Cotters]
Post by: jjbsa on 25.06. 2023 11:59

I had a very small batch of these made last year.  They are for alloy head 650 engines (valves have the semi-circular annular stem groove) and were made from EN24T steel on a CNC Swiss lathe and are pretty accurate.  I've been contemplating selling them on my Ebor Bikes website but the price would probably not be as cheap as old BSA stock, so I haven't listed them.  I had been contemplating using them up on engines that I build.  If anyone is interested they are wecome to PM me.
Cheers,
Jon