Finally cleared my work schedule a little and started building our new tandem / engagement ring and thought I should chronicle the ups and downs as I go along...
Frame is a custom built Arvon and a model he calls a "kid a long" but it is adaptable and will accommodate an adult stoker with the addition of the removable rear top tube.
Am really leaning toward building a single side drive for economy, easy stock parts availability, and durability... as I work with Arvon and am apprenticing I can bring the frame in and make any modifications I want as the blue paint is temporary and protective.
Had some nice cold forged Deore cranks so installed those, the rear wheel, and the rear chain to test the drive... set up needs to run nicely whether it is myself and the lady (a strong cyclist) or me and my daughters who are 10 and 12.
Should have the timing chain set up as soon as my long chain ring bolts arrive and by the time they get here I should have everything else finished.
Set up is currently 20-117 gear inches and the cranks will take a 4th ring for the timing chain... gearing limit actually stems from clearance in the rear for anything much larger than a 54 tooth ring so if I wanted to go nuts with the gearing would have to look at a front drive system.
But we probably won't be racing and will use the bike for day touring and some weekend trips where comfort will be most important.
The extra chain stay length in the back is a feature of nearly every Arvon frame whether it is a single bike or tandem and the lower centre of gravity will make for a pretty stable bike.
Once the bike passes it's road tests will be tearing it down for powdercoating and will be adding bottle and pump braze ons and disc mounts for the front and rear to go with some custom hubs we have in the works.
My 10 year old daughter is stoked about stoking...