BH S1Ri Guide D'utilisation page 18

STEP 6
1) Slide the Back Rest (N-1) down on to Back Rest Post (M-1). Make sure the knob that tightens the back
rest is loosened. Pull out the knob to slide the back rest onto the Back Rest Post (M-1). Secure the back rest
by seating the back rest adjustment knob into one of the pre-drilled settings and tighten the knob.
M-1
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