BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: A10 JWO on 19 Apr, 2018, 15:56

Title: Thunderbolt Exhaust Brackets. OIF
Post by: A10 JWO on 19 Apr, 2018, 15:56
Just got my complete balanced exhaust system from Armours. All lines up very nice so far. There are lugs on the down pipes which are designed to take a chrome bracket to the top front engine mount. When I got the bike there were no exhaust pipes with it. Armours do not do the said bracket. They suggested looking at the Triumph Bonnie OIF bracket 70-6857. I was hoping someone else had come across this set-back/problem. the gap from lug to engine mount is about 3 1/2". The Triumph chrome brackets are cheap but I don't want to start drilling and cutting as it won't look nice. As normal any help would be appreciated.
Title: Re: Thunderbolt Exhaust Brackets. OIF
Post by: JulianS on 19 Apr, 2018, 16:36
Try stainless ones? Better than adapting chrome.

https://www.ebay.co.uk/itm/Triumph-T120-T140-TR7-H14-Downpipe-Exhaust-Brackets-70-6857-JtClassic-Stainless/183170082159?hash=item2aa5c9a56f:g:K-
Title: Re: Thunderbolt Exhaust Brackets. OIF
Post by: A10 JWO on 19 Apr, 2018, 17:04
Hi Julian. Had a few bits off that guy and have been pleased. His bracket would be ideal if it did not have such a sweeping bend. There is only 3/4" clearance from the down tubes to the centre of the engine bolt hole. So I don't think that one would work ?  :(
Title: Re: Thunderbolt Exhaust Brackets. OIF
Post by: JulianS on 19 Apr, 2018, 18:43
Sounds a bit tight there.
Title: Re: Thunderbolt Exhaust Brackets. OIF
Post by: Ken Oaff on 19 Apr, 2018, 21:28
had a complete set of original factory header pipes  you could have copied

sold them on ebay a while ago for pennies
Title: Re: Thunderbolt Exhaust Brackets. OIF
Post by: A10 JWO on 23 Apr, 2018, 18:03
Got a nice piece of steel and will produce my own, at least I know they will fit. Thanks lads.