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BSA Super Rocket (1957-63) Engine 646cc air cooled parallel twin
Registration Number 187 BTX (Glamorgan)
BSA ALBUM
www.flickr.com/photos/45676495@N05/sets/72157623759878630...
The BSA Super Rocket was a 646 cc (39.4 cu in) air-cooled parallel twin motorcycle introduced in 1957 an improved sports bike member of the BSA A10 series, which at the time was struggling to compete against the Triumph engines and the Norton Featherbed frames. The Super Rocket retained the Amal TT carburettor and 356 sports cam of the Road Rocket, its compression was increased to 8.5:1 and a new alloy cylinder head was fitted. The cylinder head had a cast in inlet manifold with larger ports and valves. The crankshaft was stiffened compared to the previous models. These modifications increased power output to 43 bhp. Cycle World, the American motorcycle magazine, tested the Super Rocket at 116 mph
Diolch am 94,038,704 o olygfeydd anhygoel, mae pob un yn cael ei werthfawrogi'n fawr.
Thanks for 94,038,704 amazing views, every one is greatly appreciated.
Shot 28.05.2022 at Smallwood Steam Rally. Cheshire REF 160-107
Lydden Hill Bike Track day May 6th 2017 This Gentleman may be wearing sea boot socks Cafe racer style but he certainly knows how to ride !!!!
Fantastic weekend at Lydden for the Lord of Lydden and Sidecar Burn-up. Tom Reeves 8 time World Champion 2021 Lord of Lydden Sidecar Burn up Champion
BSA Gold Star 500 BDB34 Clubman (1939-63) Engine 499cc alloy air cooled OHV 2V pushrod single
Frame No: CB32 7505
Engine No: DBD34GS 3421
Registration Number 411 FPL
BSA ALBUM
www.flickr.com/photos/45676495@N05/albums/72157623759878630
Probably the most sought after models produced by BSA are the Gold Star range of 350 and 500cc singles and the rare Rocket Gold Star 650cc twin of the late 50s early 60s. This classic 1958 DBD34 was tested at the factory on the 24th April 1958 and despatched to dealers Comerfords of Thames Ditton on the 8th May, being first registered for the road a couple of weeks later, built to Clubman specification, fitted with an Amal GP carburettor
The 500 cc DBD34 was introduced in 1956, with clip-on handlebars, the same big finned alloy engine with a newly designed head,38 mm ( 1 1/2" ) bell-mouth Amal carburettor and swept-back exhaust. The DBD34 had a 110 mph (180 km/h) top speed. The Gold Star dominated the Isle of Man Clubmans TT that year. Later models had an ultra close-ratio gearbox (RRT2) with a very high first gear, enabling 60 mph (97 km/h) before changing up to a second. Amongst the options available were a tachometer and a 190mm full-width front brake that gave a larger lining area than the standard 8" single-sided unit
This bike was offered at the British Motorcycle Museums, H + H Auction 6th April 2022 selling for £ 14,950 (including buyers premium)
Diolch am 90,853,706 o olygfeydd anhygoel, mae pob un yn cael ei werthfawrogi'n fawr.
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Shot 06.04.2022 H+H sale, National Motorcycle Museum, Solihull Ref. 156-016
Bellypans on most 500 Gammas are distorted and partially dissolved by spilled fuel from leaking floats. On this bike, the float needles have been replaced by precision ground items and the bellypan is almost new
...you can guess the layout of the square four with two stacked crankshafts, 4 rotary disc valves, and the cassette gearbox
What the press said...
...It's as if you have been magically transferred from the road to the race track....
I went into great trouble to cure one of the bike's faults; the ends of the top fairing are not supported, flap and vibrate, and finally crack. To avoid this, I designed an ultralight stay; all the parts are black anodized aluminum, the steering stem bolt is a copy in stainless steel, so the original one is still original. The clamp is a billet milled aluminum affair.