Porter Bicycles – Made in New Mexico, USA

Off to the Santa Fe Concorso

LeMans winner Bob Bondurant and wife Patty at Concorso

Framers and visitors:

Finished and ready for the San Diego bike show… It’s pretty sweet if I may say so myself..

I was in a hurry and took the pictures before I’d properly adjusted the handlebar positions.. so I’ve already been chastised for that..

This is the low trail design that Martin Manning (bike geometry 101) suggested that I try. This falls below the 2″ threshold and I must admit that it feels very light. The idea is that it will be less twitchy at lower speeds but still very stable at higher speeds  due to the team weight (mass).

Haven’t had a stoker on it yet, but due to initial feeling I see no reason for it not to be as predicted. It’s a 74.5 degree head tube if you all are wondering.

OK, if one looks at the pictures you’ll see that the captain’s bars are at the same height as the seat.  I don’t know precisely what the dynamics of this arrangement set up, something akin to over-leverage, Suffice it to say that after I flipped the stem over to a slightly negative rise the oversteering issue disappeared and the tandem handles like a dream.

In respect to the short trail design, I suspect that the major tandem suppliers don’t do this to protect themselves from litigation arising from neophyte owners with little or no tandem experience.

Hope you all approve.. have a great weekend

dave

Click on to enlarge-return arrow to escape

tote that load

sure is green

lotta rake

pretty Turquoise bits

adequate stoker space

Price yet to be determined…