Bicycle Specifications

Some of my bike's dimensions as drawn by Tony

For all you bike geeks out there, here are the specifications for my light touring, steel framed bicycle as designed and manufactured by SEVEN 7 CYCLES.

Specific Design Choices

The final design and composition of my bike was determined not only by my physical measurements but by my answers to several questions. Here are my answers on a scale of 1 to 10 with 5 being a standard build.

Handling: Stable -vs- Agile
     Choice: #4 (slightly more stable than average)
     Holds a line better and excels at descending and long rides - less quick

Drive Train Rigidity: Lightweight -vs- Stiff
     Choice: #7 (stiff at the pedals, great uphill and when accelerating)
     Maximizes power transfer

Vertical Compliance: Comfortable -vs- Stiff
     Choice: #3 (comfort for long distances)
     Cushion or flexibility in movement

Weight to Performance: Lightweight -vs- Performance
     Choice: #8 (emphasis on performance with weight reduction a close second)
     Designed to meet specific purpose.

Expected use over the course of a year:
     25% Road Training
     25% Club Riding
     20% Light Touring (non-camping)
     10% Mix Terrain (some crushed gravel path riding)
     10% Century Riding (or long distance touring)

Riding Style:
     Spin or "Mash" the pedals?  -  Spin
     Pedal or coast through corners?   -  Pedal
     Climb seated or standing?   - Seated

Bike Specifications:
Saddle height	63.5 cm
Plumb line	2.9 cm
Saddle length	26.5 cm
Drop	1.1 cm
Grip height	85.1 cm
Bar rotation	5.0º
Reach	71.6 cm
Frame Geometry:
Seat tube	39.5 cm	Head tube w extension	11.3 cm
Top tube	51.6 cm	Head tube diameter	1.1 in
Head tube angle	71.0º	Seat post diameter	27.2 cm
Seat tube angle	74.0º	Standover	70.9 cm
Bottom bracket drop	7.7 cm	Wheel size	700.0 cm
Chain stay	42.6 cm	Max tire width	25.0 cm
Top tube slope	12.0º
Front center	57.9 cm