COMPACT FRAMES
Compact
frames are developing a sizable following in the cycling community.
As a compact frame owner myself, I appreciate
the nimble liveliness afforded by the design. Like all bicycles,
the handling characteristics of compacts starts with the geometry
so let's take a look.
In
designing the our first compact prototype back in mid '98, we
wanted to discover what if any the real world differences there
would be between traditional and compact frame designs. Our first
compact frame (still my favorite frame) was an exact replica of
my then current titanium frame in materials and geometry save
for the sloping top tube. I designed it with a severe (17 degree) slope
to ensure that any differences would be as obvious as possible.
We had assumed that the new frame would be somewhat
stiffer and lighter. It was lighter (about 4 ounces) but it was not
appreciatively stiffer. Although we were able to measure a slight increase
in stiffness, it was too slight to feel. The big change came when I stood to accelerate
or climb. As I stood up, the bike appeared to loose three
pounds. The inertia of the bike as I rocked it back and
fourth was reduced so much that I felt as though I was on a twelve-pound
bike. Interestingly, when seated, a compact frame feels
exactly like a traditional design. The compact design has no effect on handling
beyond the increases responsiveness during climbing and accelerating.
When
considering a compact frame, take the time to check out the angles,
the virtual tube lengths and how these consideration affect handling.
If you need some advice give us a call.
1190
Dorney Road, Breinigsville, PA 18031-1123 phone:1-610-398-1986
