It is unknown whether it was produced like that, or that was the only brake available when the bike was put together by a previous owner. I'm well aware of the one-year-only '68 TLS brake on Triumphs and BSAs, I have a couple of others. It is decidedly a "bitsa", so anything is possible.miffa said:fantastic bike mr ,you must be well chuffed 8)must be a real early 69 probably came of the line in 68 running side entry TLS they changed to top entry TLS in 69,flanged TLS was by far the best twin leader ever produced bar none teamed up with the QD great set up