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Current Lead Times: Rider-Ready Framesets: 3 weeks. Full Custom Bikes: 7 weeks.

Building Your Titanium and Carbon-Titanium Bikes in the USA for 29 Years

Lion of Spring: Allroads Aero Fit


The Aero Fit

Optimized for speed.

Our Aero Fit is our most aggressive Rider Ready position. When speed is first on your list, the aerodynamics of your riding position should be first on the aero checklist. It will be difficult to find a production bike with more aggressive fit potential than our Aero Fit geometry. Our lead designer has designed bikes for World Champions; he knows something about fit for speed.

Of course, when choosing a frame size, it has to fit YOU. That's why we offer the Lion in Spring in three distinct fit categories (Standard, Aero, and Endurance). Choose wisely.

Positional modifications relative to our popular Standard Fit: Longer and lower:

  • Lower front end: About 3.0 cm lower frame stack means all things equal, the handlebar will sit about 3 cm lower than our Standard Fit.
  • Longer reach: About 1.0 cm longer top tube means that, all things equal the handlebar will be about 1.0 cm farther from the saddle.

Looking for a different fit?

We offer the Lion of Spring in two other distinct fit profiles:

Standard Fit

This is our neutral contemporary allroad position. Great for all kinds of performance riding. This fit gets you in a reasonably easy aero position while also supporting comfort on longer outings.

By the numbers:

  • Higher front end: About 3.0 cm taller frame stack puts you in a more contemporary road position. Not as aerodynamic as our Aero Fit but is more comfortable on longer rides.
  • About 1.0 cm shorter frame reach. Less aero but improved handling control.

See the full details and frame geometry for the Standard Fit Lion of Spring.

Endurance Fit

Optimized for the long ride. The Endurance Fit is ideal for rides where comfort, control, and energy management are critical. This fit also excels on rougher roads and dirt; it provides more stability and control in all conditions.

By the numbers:

  • Much taller front end: About 6.0 cm higher frame stack puts you in a more comfortable and distance-oriented riding position.
  • About 2.0 cm shorter frame reach which provides you more control and comfort.

See the full fit details and frame geometry for the Endurance Fit Lion of Spring.


Aero Frameset Geometry: Lion Allroad Disc

Click your frame size to choose it.

All measurements are in centimeters and degrees. Bike geometry shown with 700c x 28 mm slick tires. All specifications subject to change. See the frame design details page for all other specifications and details.

Frame size
& top tube, effective[1]
Frame Stack, BB-HT
Frame Reach, BB-HT[6]
Head tube length
Head tube angle
Seat tube angle
Bottom bracket drop
Chainstay length
Front center[3]
Seat Tube Length
Top tube slope
Standover height[5]

Size-specific components

These component sizes are ideal in most situations. However, you can choose other lengths if you prefer.

All specifications subject to change. See the frame design details page for all other specifications and details.

Frame size
Stem length
Stem angle
Crank arm length
General Frame & Bike Geometry Notes

All measurements in centimeters and degrees. Bike geometry shown with 700c x 28 mm slick tires.

  1. Top tube length is the effective distance from the intersection of the head tube and top tube, measured horizontally to the ground back to the seat tube's centerline.
  2. Specifications shown with 28 mm tires.
  3. Seat tube length is measured from the center of the bottom bracket to the intersection of the top tube and seat tube. To determine the total seat tube length — the top edge of the seat top to the center of the bottom bracket — add about 4.5 cm.
  4. Toe overlap warning: Because toe overlap is determined, in large part, by factors not related to frame geometry, we cannot guarantee that your bike setup will not have any overlap. Make sure you are comfortable with the length of the front center before ordering. You can check your current bike to compare the front center of your sized Seven.
  5. Standover height is measured midway along the top tube, the typical point where a rider stands on a bike. Seven's standover measurement point is different from many production bikes. Make sure Seven's measurement works for your needs.
  6. Warning: The popular measurement "frame reach" is not a good gauge of proper bike fit. Also, the term is not accurate and, therefore, often causes confusion. Seven qualifies the term with "BB-HT" to help define the measurement. Regardless of these shortcomings, we include frame reach BB-HT because it has become a popular industry shorthand for comparing one bike size to another. While the frame reach numbers Seven shows here are accurate, Seven does not take responsibility for an ill-fitting bike if you rely on the industry's frame reach number. Top tube length is much more relevant and helpful in bike-to-bike fit comparisons. To better understand the limitations of frame reach, visit our Engineering the Lion page.
  7. Handlebar width is measured center-to-center at the hoods.

All specifications subject to change. See the frame design details page for all other specifications and details.