Top Class

Frame Hand-crafted, made to measure frame, with Columbus SL steel tubing
Frame weight 1705 gms Ø Seat post 27,2 mm
Fork weight 735 gms Color* at your choice
BB Housing BSA Brakes Traditional
Compatible groups Mechanical    


* Possibility to change the colors, and where possible also the graphic

Vintage Columbus SL steel tubing. The seat stays and fork have an aerodynamic shape. Microfusion lugs and bottom bracket housing, custom-shaped specially for Somec.

BSA bottom bracket housing.
To accept Ø 27,2 mm seatpost.
Custom built.
 

 

 

Somec Design
Custom built
 
 

Top Class Geometries

Notice: weights are based on 55,5 cm rough frame size
(in sloping geometry)

Top Class
C,F,
A C/C
B
D
C
E
F
H
 
49 47,50 50,50 74,5° 12,55 57,50 40,3 27,00
50 48,50 51,50 74,5° 13,23 58,00 40,3 26,50
51 49,50 52,00 74,5° 13,50 58,40 40,3 26,50
52 50,50 53,00 74,5° 13,76 58,50 40,3 26,50
53 51,50 53,50 74° 14,03 58,70 40,4 26,50
54 52,50 54,50 74° 14,75 59,00 40,4 26,50
55 53,50 54,50 74° 15,02 59,00 40,4 26,50
56 54,50 55,50 73,5° 15,30 59,60 40,6 26,50
57 55,50 56,00 73,5° 16,05 59,80 40,6 26,50
58 56,50 57,00 73° 16,33 60,00 40,8 26,50
59 57,50 57,50 73° 16,61 60,50 40,8 26,50
60 58,50 58,00 73° 17,40 60,50 40,8 26,50
61 59,50 59,00 72,5° 17,69 60,80 40,9 26,50
62 60,50 59,50 72,5° 17,98 61,20 40,9 26,50
63 61,50 60,00 72,5° 18,27 61,70 40,9 26,50