
This is my home built BSA and I still own it. Made from a clean up in the workshop. Almost entirely of BSA parts. It is from the start a 1963 BSA A10 Super Rocket frame, witch is changed by a heavy jig to adopt the B33 / B34 engine. Standard gearbox, oil tank and tool box. Petrol tank pretty much standard except from the big badges with was an unsuccessful conversion from small badges. The tank is not possible to re-chrome, the welding torch did to much damage.
The engine lower half is an GB33 1958 bottom end, now with an Lucas PowerBase 180 W Alternator. The upper half is an standard DBD34 Gold Star cylinder and cylinder head, this is practically an bolt on except for the swap of suiting conrod. Carburation via an AMAL 1038 Concentric. Because of the GB33 bottom end ther is no Lucas MagDyno, instead it has a battery ignition witch could be fine but is not perfect. The retard mechanism is too flimsy. Most of the time I have run the bike with fixt ignition timing, witch only major problem is a bad tickover. The transmission is a little bit noisy, it uses no shock absorbers at all. I still use standard B33 lifters and home modified pushrods to fit. Actually I can adjust the valve lifters in the bottom and the eccentric adjustment on the head, but I only use the bottom adjustment.
After a blow up in the crank the machine was downgraded to an standard GB33 engine for many years, but now (2004) it is back in the ‘original’ DBD state.
Rear wheel is a standard A65 QD wheel with 18” rim, and in the front I use an BSA/Triumph ca 1973 front fork, with a 1970 front brake an 19” wheel. Mudguards and headlamp I from a BSA Rocket 3. Rear mudguard stay is from the old Super Rocket.
To conclude, it is a very ride able bike with good handling, good brakes, good suspension witch could be built by BSA if the not chased the production of the Gold Star in 1963. In my version this is the 1972 Alternator Goldie.