Maximum Fork Length; Headtube - Cannondale PROPHET Owner's Manual Supplement

maximum fork length

Maximum Fork Length is an important frame safety testing specification. You must
observe the measurement when installing headset parts, headset adapters, installing
and adjusting a fork, and replacement forks. The specification is printed on a warning
label indicated in the figure below. In this manual, the number is also listed in the
specifications section.
WARNING
MAXIMUM FORK LENGTH
See Owner's Manual Supplement.
The Maximum Fork Length
in millimeters will be printed
on the label.
WARNING
DO NOT INSTALL HEADSET PARTS OR FORKS RESULTING IN A MAXIMUM FORK LENGTH
LONGER THAN THE SPECIFICATION FOR YOUR FRAME. DO NOT ADJUST A TRIPLE CLAMP FORK
SO THAT MAXIMUM FORK LENGTH EXCEEDS THE FRAME LIMIT. Exceeding the MAXIMUM
FORK LENGTH limit can overload the frame causing it to fail (break) while riding.
YOU CAN BE SEVERELY INJURED, PARALYZED OR KILLED IN AN ACCIDENT

HEADTUBE

HEADSET
PARTS or
ADAPTERS
MAXIMUM
FORK
LENGTH
IF YOU IGNORE THIS WARNING.
8
HOW TO MEASURE:
1. Temporarily install the
fork into the headtube
with the headset/
adapter in use.
2. Fully extend the fork.
If the fork is a triple
clamp type, extend
the legs to maximum
designed length.
3. Measure the distance
from the bottom of
the head tube to the
center of the wheel
axle.
Do not measure from
the bottom of headset
bearing cups or head
tube adapters. The
measurement MUST be
taken from the bottom of
the head tube!!