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Classic Lightweights UK
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Granby Twin-tube - c.1922


Granby Eric RB 1


Frame
Year of manufacture uncertain, believed to be 1922.  Seat tube 20" centre to top. Top Tube centre to centre 22"
Wheels
Wood rims, 'Ambra Superca  London  Factories' Italy 
on BSA hubs
Chainset BSA inch-pitch 22-tooth
Pedals BSA
Gears Single fixed
Brakes N/A
Stem/Bars Deep-drop track bars
Headset Clip type
Saddle Brooks B17 Sprinter
Extra details
All bright parts nickel plated as original, finish as per catalogue Garnet 3/6d extra. (17½ new pence). The model advertised in 1924 Granby catalogue had 'struts' between the twin down tubes, it is assumed to stiffen the bottom bracket area.

Granby 1 350
Granby 2 350