Primero
This specific model has been archived. It is no longer being produced or has changed in appearance but is listed here for historical/research purposes.
The evolution of steel continues in the Primero, our extremely lightweight steel road racing frameset. That’s right, we used ‘lightweight’ and ‘steel’ in the same sentence!
Crafted from True Temper S3 (Super Strength Steel) tubing, the Primero frameset provides carbon-like weight savings in an ultra light steel package. A 49cm (56cm equivalent) Primero weighs in at a mere 3.1 lbs.
The Primero uses a sloping toptube design to provide a fit-friendly platform and greater rider comfort. The double-butted S3 tubeset is optimized with a bi-axially ovalized downtube and teardrop shaped toptube to maximize the frame’s strength-to-weight ratio and ride quality.
Up front, the Primero frameset uses an Alpha Q CS20 full carbon fork made with True Temper’s Carbon Rooting system. Designed for the European pro peloton, the fork weighs 400 grams and provides optimum vibration damping, stiffness-to-weight ratio, and fatigue life.
Not quite as stiff as our scandium Campeón frame model, the Primero is designed as a ‘classics’ road racing or long distance, fast paced road riding bike. It stands up to big gear mashing while soaking up surface harshness and propelling you forward.
All this results in a delightful road machine, built for long hours in the saddle in the glorious pursuit of pavement. Follow up last weekend’s century with another one this week. Go find those big climbs and long descents. Revel in the performance of steel.
Primero. Take the longer way home.
Geometry & Fit
| Switch to mm Switch to inches |
43cm |
45cm |
47cm |
49cm |
51cm |
53cm |
|
|---|
| A.Top Tube Effective |
20.0 " |
20.9 " |
21.4 " |
22.0 " |
22.6 " |
23.3 " |
|
|---|
| B.Seat Tube Length |
19.3 " |
20.1 " |
20.7 " |
21.2 " |
21.8 " |
22.4 " |
|
|---|
| C.Head Tube Angle |
72.5° |
72.5° |
73° |
73° |
73.5° |
74° |
|
|---|
| D.Seat Tube Angle |
74.5° |
74° |
74° |
73.5° |
73° |
72.5° |
|
|---|
| E.BB Drop |
2.9 " |
2.9 " |
2.9 " |
2.9 " |
2.9 " |
2.9 " |
|
|---|
| F.Chainstay Length |
16.3 " |
16.3 " |
16.3 " |
16.3 " |
16.3 " |
16.3 " |
|
|---|
| G.Head Tube Length |
4.3 " |
5.0 " |
5.7 " |
6.4 " |
7.0 " |
7.7 " |
|
|---|
| H.Fork Length |
14.7 " |
14.7 " |
14.7 " |
14.7 " |
14.7 " |
14.7 " |
|
|---|
| J.Fork Offset |
1.7 " |
1.7 " |
1.7 " |
1.7 " |
1.7 " |
1.7 " |
|
|---|
| K.Wheel Base |
37.8 " |
38.4 " |
38.9 " |
39.1 " |
39.4 " |
39.5 " |
|
|---|
| P.Stand Over |
28.9 " |
29.6 " |
30.3 " |
31.0 " |
31.7 " |
32.4 " |
|
|---|
| Top Tube C-C |
19.3 " |
20.1 " |
20.7 " |
21.2 " |
21.8 " |
22.4 " |
|
|---|
| Switch to mm Switch to inches |
43cm |
45cm |
47cm |
49cm |
51cm |
53cm |
|
|---|
| A.Top Tube Effective |
509 mm |
529.6 mm |
544.8 mm |
560 mm |
575.3 mm |
590.8 mm |
|
|---|
| B.Seat Tube Length |
491.2 mm |
510.6 mm |
525.4 mm |
539.4 mm |
553.5 mm |
567.9 mm |
|
|---|
| C.Head Tube Angle |
72.5° |
72.5° |
73° |
73° |
73.5° |
74° |
|
|---|
| D.Seat Tube Angle |
74.5° |
74° |
74° |
73.5° |
73° |
72.5° |
|
|---|
| E.BB Drop |
73 mm |
73 mm |
73 mm |
73 mm |
73 mm |
73 mm |
|
|---|
| F.Chainstay Length |
415 mm |
415 mm |
415 mm |
415 mm |
415 mm |
415 mm |
|
|---|
| G.Head Tube Length |
110 mm |
126 mm |
145 mm |
162 mm |
178 mm |
195 mm |
|
|---|
| H.Fork Length |
374 mm |
374 mm |
374 mm |
374 mm |
374 mm |
374 mm |
|
|---|
| J.Fork Offset |
44 mm |
44 mm |
44 mm |
44 mm |
44 mm |
44 mm |
|
|---|
| K.Wheel Base |
959.8 mm |
967.1 mm |
987.2 mm |
994.4 mm |
999.5 mm |
1004.2 mm |
|
|---|
| P.Stand Over |
734.1 mm |
750.8 mm |
770 mm |
788 mm |
805.5 mm |
823.2 mm |
|
|---|
| Top Tube C-C |
491.2 mm |
510.6 mm |
525.4 mm |
539.4 mm |
553.5 mm |
567.9 mm |
|
|---|
• Standover height is based on using a 700c x 23mm tire measuing 680mm in diameter.
• This frame features a sloping toptube. Add 7cm to the listed size for equivalent level toptube size frame. Or size frame by using TT (horizontal) which is more appropriate anyway.
The best way to determine your proper frame size is to visit your local bicycle dealer. The fit chart below is a simple starting point, but the enormous variation in human body dimensions make it impossible to guarantee this fit chart will work precisely for you. We strongly suggest you consult your local bike shop in this matter. They will help you make a wise purchase.
