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Identify these bikes! / Re: NEED ID's FOR 1920s MACHINES
« on: December 28, 2011, 12:16:42 PM »Hi John,
Some healthy scepticism! I'm going to stick with Blackburne. In the photo we see is almost precisiely side-on (the bike is off the stand, and is leaning to the left) and slightly from the front. The side-on nature of the motor means we don't get to see the "plan" of the cylinder fins (below) except in subtle variation of the light (which I have no difficulty imagining). The slightly front-on aspect of the photo means we only see a bit of the outside flywheel in the gap between the frame, exhaust etc. (Since we are looking slightly down in the Neracar photo the flywheel looks higher - paralax.) 8 fins, widely-spaced valves, circular timing chest, valve lifter at 2 o'clock... perhaps there is another motor with these attributes?
The one-piece side-valve Blackburne cylinder was described as new in September 1922 when Marchant and Handley went long distance record breaking (7 hours/400 miles) at Brooklands on a 60 x 88 - 248 cc OK-Blackburne. I wonder if "our" bike is a 250 or 350?
Cheers
Leon
I am glad you experts are having such fun with this. I will trawl the archive and see if I can find a better pic!
I know Hilda owned an "Indian" at one stage, so she was quite a biker.
Cheers,
Mac.