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Messages - STAR TWIN

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Twins / Re: A65L engine rebuild
« on: 07 February, 2017, 14:16:45 »
Not everyone has had a great experience with timing side needle roller conversions. The original plain bush gets slagged but it's not at all bad. Yes, if it wears badly it will reduce oil flow to the big ends - but by that time the big ends will be due attention anyway. The plain bush A7 and A10 in the family have been absolutely fine despite some frankly brutal treatment over countless thousands of miles over the last 40+ years. Just make sure any replacement bush is properly line reamed. Good enough for me.   

Which BSA do you ride? / Re: A7 Star Twin
« on: 06 February, 2017, 17:05:55 »
The one of me in my youthful days was taken in Little Glen Shee, out for a trail ride. My wife was accompanying me on her A10. The recent grey haired old man one was taken at home in one of our fields near Biggar.
Here's another one of it at the Pass of the Cattle - Bealach na Ba. 

Twins / Re: Bsa A10 ariel hubs
« on: 06 February, 2017, 17:00:42 »
Must have been a few of us at the Haggis Bash. The Ariel hub brakes are reckoned to be no better than the BSA 8" full width ones. Not very good then. The advantage of the BSA full width one is that you can fit a TLS brake plate as I have done. There are a couple of things to watch for - see the relevant thread.   

Which BSA do you ride? / A7 Star Twin
« on: 04 February, 2017, 17:26:13 »
The all-rounder. 40 years of tremendous fun so far. Trail riding, touring, long distance commuting, long distance trials. As all-rounders go, it takes some beating. 

Twins / Re: BSA A10 twin leading shoe brake
« on: 04 February, 2017, 17:24:07 »
It is all too easy to set up a TLS brake badly. Of course, all the usual brake rules apply. Choice of linings being paramount. Most aftermarket linings are far too hard. Something a bit softer like AM2 or MZ41 (if you can get them) are far better for normal use.
The thing to watch with TLS brakes is stopping on a steep slope. You can find yourself setting off backwards despite hauling on the brake as hard as you can.   

Twins / Re: BSA A10 twin leading shoe brake
« on: 03 February, 2017, 13:32:39 »
The 8" SLS on my Star Twin is excellent, as is the 8" SLS brake on my Dominator. However, the 8" SLS full width hub brake on the A10 is almost as useless as the 7" SLS full width hub brake on my B31. The original anti-lock system... So the A10 now sports a TLS brake and actually stops.   

Singles / Re: B40 WD gear ratio
« on: 31 January, 2017, 06:47:58 »
Thanks Julian. Of course you need to replace the primary chain when you fit the 28T engine sprocket. It's the best modification you can make to a B40. And you can still ride long distance trials!

Which BSA do you ride? / Re: Stargazer
« on: 30 January, 2017, 17:33:19 »
And my B31 is called......B31! Seen here on Haggs Mine at the Beamish Trophy Trial and out on a run.

Which BSA do you ride? / Re: A10
« on: 30 January, 2017, 17:26:13 »
Almost there after 16 years in the corner of a damp shed

Singles / Re: B40 WD gear ratio
« on: 30 January, 2017, 10:12:44 »
My WD B40 has a Victor engine sprocket rather than the standard one. Makes the bike much more usable. Sorry, can't remember the number of teeth.

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