KEN ROGERS TRICYCLE CONVERSION SET ON CARLTON 531 FRAME on eBay (end time 11-Jun-11 22:32:49 BST)
The photographs of this Rogers conversion were so good that I have included it here as an example to other sellers. Also to show what a Rogers conversion looks like, of course. The images are so good that they can be used by a new owner of a trike conversion set to see how they should be fitted to the donor bike frame.
Note that more modern conversion sets are completely different. Much later sets increase the wheelbase rather than shortening it. (Trykit conversion axles for example fit behind the rear drop-outs) Earlier conversion sets fit through the rear stay triangle of the donor bike. As seen here.
General view clearly showing the duplication of the seat stays typical of a trike conversion. Near side, one wheel drive typical of manufacture in Great Britain.
As always, the donor frame is not vitally important to the buyer. A conversion can easily be mounted onto almost any steel road frame in under an hour. There are some limitations depending on the rider. The bike frame should fit the owner or the exercise is rather pointless.
I have (instinctive) reservations about using carbon fibre or alloy bike frames with a trike axle conversion. They have no long history to be certain of their safety when subjected to the heavy side and twisting loads of a trike. It is true that the seat stays carry wheel loads into the seat clamp. Close to where the rider sits. But a few minutes of riding will convince the trike rider that there are all sorts of things going on at the back end. A saddle bag on a bike has no reason to sway about. On a trike it needs fixing down to cope with side loads and sudden changes of attitude.
Those with large feet should avoid a very short wheelbase bike frame. As I discovered myself when swapping my Longstaff conversion to yet another recycled road frame. I had an overlap of the rear axle casing of about an inch by my heels! Probably because I have never seemed in danger of toppling in a high wind. Note how the trike axle passes inside the bike frame stay triangles. This not only shortens the wheelbase but puts a large crossbar across just behind the rider's heels. Trykit has put their conversion axles behind the rear drop-outs of the donor bike.
And now a simultaneous auction of a Rogers trike: Lady's model.
The yellow Rogers trike made £200 precisely.