Wanted - Siamese pipes for A10 RGS lookalike. Some online - are they any good??

[t20racerman]

Hi all

I'm rebuilding my old A10 and the siamese pipes are pretty corroded and damaged, and to be honest, they never fitted very well in the first place! I need to get some new pipes pretty quick as I've nearly finished the rebuild. If you have some decent 2nd hand ones, please let me know. Alternatively, what do you think to these ones advertised on feked.com:

http://www.feked.com/bsa-a10-650cc-siamese-exhaust-pipe-swing-arm.html

Different shape to my present ones, but look like easier to fit. Any offers, thoughts or comments welcomed!

[alanp]

Call Roger Sharman at Cake Street Classics, the RGS specialist, he will sell you what you need with the correct curved blend of the left pipe to the right hand pipe. Job done.
Alan

[iansoady]

I got some from the guy selling as jrpclassics on ebay and they fit quite well (had to remove about 1/4" from the left hand one). Chrome seems good but I have to say haven't used the bike much since fitting.

[Topdad]

Hi ,I got mine from Cake st as well ,that was over 8 yrs ago and they are still fine ,bit of blueing but no other problems, regards Bob.

[t20racerman]

Call Roger Sharman at Cake Street Classics, the RGS specialist, he will sell you what you need with the correct curved blend of the left pipe to the right hand pipe. Job done.
Alan

Thanks for the contact, but at 250 quid just for the downpipes, it is a bit pricy for me. I went the ebay route!

[Topdad]

Good God ,how much? I know quality is priceless but I didn't pay anywhere near that ,mind you I could have paid him in white fivers (9yrs ago) and I know another guy who went down the local trader route and his look worse than my old A7SS pipes that have lain around the shed for 25 yrs and he only got 'em 3 yrs ago, anyway hope they are okay ,best wishes Bob.

[craigb]

Gee that must have been close, I thought I had bought the last set at JRP on the 4th! I guess you need to match them up to any bike, but when you say Ian you took 1/4" off the left one, I take it that is off the length that goes into the cylinder head? Also what muffler have you used on yours and do you recall what diameter it is. I have seen some different shapes but my bike being ex SA police they were all fit with the siamese pipe and from photos it looks pretty much like the standard one, but I am guessing maybe a bigger diameter with only one? My pipes will be here Tuesday probably so will be able to measure then.

[a101960]

I got my pipes from Cake Street 10+ years ago and did not pay anything like that. What I can say is they are very high quality and the fit is perfect. The bends are correct, and so far they have not "blued" or shown any signs of deterioration. Virtually all of the alternative pipes that I have seen are the wrong shape. I suppose it depends on weather you want just a set of pipes or weather you want a set of original looking pipes. You pay your money............. Just a mention about RGS silencers. I have both an Armour silencer, and a Toga silencer. The Armour silencer is far to quite, the Toga silencer is much more "sporting"

John

[iansoady]

I guess you need to match them up to any bike, but when you say Ian you took 1/4" off the left one, I take it that is off the length that goes into the cylinder head? Also what muffler have you used on yours and do you recall what diameter it is.

Yes, I took the 1/4" off the end that goes into the head on the left hand branch. It did fit without but was too close to the downtube for my peace of mind.

The pipe end was also very slightly oval but a bit of careful squeezing in the vice had it nicely round again.

I used a Goldie style silencer, again from jrpclassics, which again fitted well and seems reasonable quality. It sounds nice without being too aggressive.

AFAIK the pipe is the same diameter whether siamese or twin but others know far more about this than I do.

Unfortunately I have a problem with my left hand at the moment preventing me riding either of my bikes......

[trevinoz]

Same diameter either way.

  Trev.

[craigb]

Thanks for that, funny how things roll out, had to drop a car for exhaust work and pick up some parts nearby on Monday. Rather than bore the wife too much, said I would call her when finished with the exhaust and that should time about right. Walking along and past K & M Motorcycles I thought to pop into Murrays across the road and see what secondhand stuff he had for A10s..... sign said not open Mondays but door was open and he happened to be there...... asked if any decent mufflers.....said he accidentally ordered one brand new sitting in a box.... nice quality, good price......life can be weird sometimes but great when it is good wierd!

[t20racerman]

Hi all
Just thought I'd give an update so that anyone thinking of buying some pipes like this will know the details...

Pipes came and small LH pipe had a dent in it! I complained and the supplier couldn't have been more helpful. He apologised profusely and agreed to send me a replacement as soon as he got the next batch from the platers. He told me that using the dented one until it turned up would be fine. 5 days later the replacement turned up. Excellent service and I'd recommend the supplier anytime...

HOWEVER there is a problem with the pipes - the diameter is too small and they are loose in the head. What makes this worse is that the small pipe is also a little loose where the two pipes join. I found it impossible to get the pipes to stay in, the LH side being awful. Despite using exhaust pastes and sealants it was no use.

To solve this I had to get my welder out and weld a ring around the end of each pipe and then grind this down until I had a lovely firm fit! This didn't affect the chrome though as it was some way from the visible bit.
They now fit, and look, perfect. Not ideal perhaps, but a workable solution.

[muskrat]

G'day t20,
              so who did you get them off? Did you notify him of the problems?
Cheers

[Brian]

T20 there was probably a easier way. Most automotive exhaust places have hydraulic pipe expanders, a multi fingered gadget that fits in the pipe and expands to whatever you need.(within reason) I have used them myself on a couple of occasions.

[t20racerman]

T20 there was probably a easier way. Most automotive exhaust places have hydraulic pipe expanders, a multi fingered gadget that fits in the pipe and expands to whatever you need.(within reason) I have used them myself on a couple of occasions.

I like the idea... but I had a welder to hand, and didn't have a pipe expander. My method was certainly a little more crude!

Muskrat - follow the link at the top to see where they came from. I'll send back the dented pipe today with a covering letter explaining what I found.. and what I had to do to get them to fit. They were only a little bit loose, but the difference between a firm fit and slopping around is of course not much at all. I'd guess they needed to be about 1-2mm bigger across the exhaust port end, and about 1mm at most at the join.