Cyclists on serious training programs and competitors use the Cyclometer 45tt to quantify their effort. Its unique functions include a destination distance display for time trialing and gear/cadence measurement.



SPEED To 400.0 mph in 0.1 mph increments
Maximum speed To 400.0 mph in 0.1 increments (resettable)
Average Speed To 199.99 mph in 0.01 increments. Calculated only while the wheel is turning. Averages up to 250 hours (resettable)
Pace Arrow Indicates whether current speed is above or below average speed. Displayed in all functions
Cadence From 15 to 250 rpm. Requires cadence mount kit included in packages marked 'Gear/Cadence'; available separately for others
Gear-Inch From 20 to 200. Requires cadence mount kit


TRIP DISTANCE To 999.99 mi in 0.01 mi increments and from 1,000.0 to 1,999.9 in 0.1 increments (resettable). Display freezes at 1999.9 mi
Total Distance To 19,999 mi in 1 mi increments. Display freezes at 19,999 mi
Riding Distance To 999.99 mi in 0.01 mi increments and from 1,000.0 to 1,999.9 in 0.1 increments (distance used to compute average speed)
Destination Distance Distances up to 199.99 mi can be entered and count down after the function is turned on


TIMER To 9:59:59 in 1 scond increments; resettable
Clock To 1 minute; 12 or 24 hour format
Riding Time To 9:59:59 (time used to compute average speed)
Destination Time To 9:59:59 Only accumulates when Destination Distance is turned on and the wheel is turning


Miles/Kilometers Stored data converted when setup is changed. Displays gear development in cm when setup for km
Total Distance Setup Total distance programmable by the user
Wheel Size Calibration Calibration for wheels from 30.24" circumference to 130.99" circumference in 0.04" increments
Sleep Cuts power consumption by 50% while retaining stored data


Dimensions 1.75" X 1.75" x 0.3"
Weight Unit, 0.5 oz
Display Dual liquid crystal, UPPER NUMBERS 0.3" high; lower numbers 0.2 high
Units Instrument displays either miles or kilometers
Reset Functions can be reset individually or globally
Operational Temperature Range 0°F to 150°F
Data Speed display updated every second. MultiPulse transmitter sends 20 pulses per wheel revolution
Weather resistance Water resistant
Mount System Compatible with all Avocet computers except models 15 and 25
Battery 1.5 volt, 2 year life. Use Avocet Cyclometer 35/45 battery or 357 (Renata, Eveready, RayOVac, Phillips). SR44W (Maxell, National, Panasonic, Sony, Toshiba), D357H (Duracell)
Accessories Cadence mount kit to add gear/cadence (the Cyclometer 45tt can be purchased with a gear/cadence mount or the gear/cadence mount can be purchased separately)
Colors Cyclometers are available in black, red, white, blue, and purple

Spare parts and accessories for Avocet Cyclometers are available from your dealer or you can order directly from Avocet.