Basso Astra Disc 2020 Size Chart


basso astra

 

A1 Bike Size 45 48 51 53 56 58 61
B Top Tube (mm) 505 515 525 545 560 575 590
R Reach (mm) 374 374 377 383 385 388 389
S Stack (mm) 527 527 552 564 591 614 638
C Seat Tube Angle (°) 76 75 75 74 73.5 73 72.5
D Steering Tube Angle (°) 71.8 71.8 72 72.3 73.5 73.5 74
E Chain-Stay Lenght (mm) 400 400 400 400 402 406 406
F BB to Fork Lenght (mm) 576 576 585 592 590 599 602
HT Headtube (mm) 125 125 150 162 180 204 228


 

ASTRA FRAME TECHNOLOGY

100% 3K Torayca High Modulus Carbon Fiber in T700-MR60

LAY-UP STRUCTURE:

Top Tube: 1 x 0° + 1 x 22° + 2 x 45° = the lightest part of the frame.

Down tube: 2 x 0° + 1 x 22° + 2 x 45° fiber lay-up light and stiff.

HT: 2 x 0° + 4 x 45° the most rigid part of the bike, zero giving in torque.

ST: 1 x 0° + 3 x 22° comfortable and vertical shock absorption.

CS and ST: 1 x 0°, 3 x 22° + 1 x 45° light and stiff.

3K inside tube lay-up of ht - bb and st increases torque resistence.