Serial number W265 appeared on a Maclean "Super Cycle" model, which had a bill of sale dated 29th April 1938, so yours would probably date to 1937 or 1938. As for the 26 inch wheels and other equipment, including tyres, I suggest you email me off list, and I should be able to assist with sources.
Neil Foddering Weymouth, Dorset, England
>From: Simon PJ <simonpj@mac.com>
>To: <Classicrendezvous@bikelist.org>
>Subject: [CR]1930's Macleans Featherweight, & 26" wheels
>Date: Thu, 13 Jul 2006 14:12:25 +0100
>
>I have a couple of questions after picking up a 1930's Macleans
>Featherweight frame from eBay yesterday (#320004939033)
>
>The frame number is W 108. Does anybody know how to date Macleans frames?
>
>It takes 26" wheels, about which I know nothing. What rims and hubs should
>I
>be looking for? How easy is it to get hold of appropriate tyres?
>
>Many thanks,
>
>Wyndham Pulman-Jones
>Cambridge, UK