Balance pipe and clips like this is what I use at the mo.
https://www.britishbikebits.com/chrome-exhaust-balance-pipe-clips-bsa-triumphI am considering using Mikalor clamps, I have these fitted to the silencers and they are much grippier than the usual type as seen in the link
heres an e bay link to the sort of thing,
https://www.ebay.co.uk/itm/221623600550?_trkparms=ispr%3D1&hash=item3399cbc5a6:g:0PEAAOSwXrhXmz~M&amdata=enc%3AAQAGAAACkPYe5NmHp%252B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsSvtkx670Z0mbyfWqmxLFLYbMSgiGkZ4Kz0Vf2w%252FPg6LFmSnmhCiex9%252FsI9h681lcGhoFMdQ3kEXvU4LPXXcAm8QGUHz4WXslTvAMHoQdhvPe%252B1ZnSsnYIDgJ%252FSpMlRLcCbtrp6jx10QYesrwTTOvT%252F8y0fNF%252FF1b%252Fh6SZ2wY4S34q%252F1R%252BqXu0rw2OyWZEurc7z2HcBUq5OHN64%252BzhupPFOSmLfR53om9re2RfGdd0cTCl4Lqb%252FVLHp1cmzVQgNL0t0KSIEXEWp%252FsuPOKHOEDyu3HizHzOYyFY9dDetfZphjtD8AR6DkU3Lt5ZGoOg7FVr%252FmEWZqCMRBQejkazQ8zhxeIuUIzICzazmfjV7tr8AcvvMUgKWxr1R3Abl2%252F9HISyiy5NWjaWoApCzS04Z3ALImjne1gTSM5GknQ9nGUVShhtSGaaPDcz6%252BxP2gFpJSsJYDQ3mS62pb%252FAIZPp5C%252BqwnJ1YZzwxBeOAL6MjeRZXNvAGGXGeSNYb4bD3kOZxzqGetPIMVPVCy2Uk2R9Jll9t7VTU7%252F3%252BZBO34yztp6cqZmZWZGOPkwJ5yowY5FYeJKIHpU0E1nKHjeE%252BW087sUnsaITXL7vyoBJjWQpGnhhI7MdAtXU3jI5P84TAxR17vCRc18IlBHmISr%252FD0u49ymVNPg4pAsmxDMr7G57%252BDajXziIBWrml2sE5guNhkrfyO6dmVitNW4%252BWukgtDdZ4eStM9J2kl3oN1IT%252F5JuzCf%252BEJzpRLM9JCfdQaDtdzO507XCPdZ%252FkpFMYcgDNZRD1V4YqHwbP2IQxomKvHdmw0Q47PUdcXxjZ6Z%252BNI%252BSnzrpcJT%252B%7Campid%3APL_CLK%7Cclp%3A2334524