User Guide

WARNING
24
SEAT AND SEATPOST
Introduction
The seat and seatpost are your primary support on the bike. Their
adjustment is important for your comfort and pedaling efficiency. Ensure
that your position on the bike is correct, comfortable, and that both the
seat and seatpost are securely tightened to hold this adjustment.
Inspection
Inspect the seatpost quick release lever, or seat post binder bolt, and
seat fixing bolt(s) (Figs. 33 and 34) for proper tightness every month.
For quick release levers, with the lever halfway between the OPEN
position and CLOSED position, tighten the quick release adjusting nut on
the opposite end of the quick release axle. Place the quick release lever
in the palm of your hand and move the lever into the CLOSED position. At
the halfway closed position of the quick release lever, you should start to
feel some resistance to this motion. If the lever is moved to the CLOSED
position with little or no resistance, clamping strength is insufficient.
Return the lever to the OPEN position, tighten the quick release adjusting
nut further and close the lever, and test again for resistance.
Check to ensure that the seat is secure by attempting to turn the
seat and seatpost in the frame, and attempt to move the front of the
saddle up and down. If the seat rotates, is loose, or moves up and
down, tighten the binder bolt or quick release, or seat fixing bolts,
and repeat the test. Never engage the seatpost binder lever with the
seatpost out of the frame.
• Tighten seat post binder bolts (Fig. 33) to 85-125 lb•in (9.6-14.1 Nm).
• For seat fixing bolts using a 13 or 14 mm open end wrench (Fig. 34),
tighten to 180-220 lb•in (20.3-24.9 Nm).
• For single seat fixing bolts using a 6 mm allen wrench (Fig. 33),
tighten to 150-250 lb•in (17-28.3 Nm).
• For double seat fixing bolts using a 5 mm allen wrench, tighten to
80-125 lb•in (9.6-14.1 Nm).
• For seatposts with two seat fixing bolts using a 4 mm allen
wrench, tighten to 45-60 lb•in (5-6.8 Nm).
Fig. 33
Seat
fixing
bolts
Seatpost
Seatpost
binder bolt
Fig. 35
Minimum
insertion
mark
Make sure that the minimum insertion mark, also called the
maximum height mark (Fig. 35) remains inside the frame. A
minimum of 2 1/2 inches (64 mm) of seatpost must remain in the
frame. Riding with the seat raised above this height may cause loss
of control resulting in personal injury or damage to your bicycle.
Fig. 34
Seat fix-
ing bolt