Nervures ALTEA 25 Manual page 16

RISERS - TRIMS
The Altea is delivered with a 3 branches risers system of 450 mm
length and a speed bar system.
The accelerator progressively pulls 8 cm on A and 4 cm on B and then 6 cm
simultaneously on A and B. T.
LINES - SCHEMES
see pages 8, 9 & 10
16