15 functions: Current Speed, Average Speed, Max Speed, Cadence,Trip,TripTimer, Speed Comparator, Odometer, Auto Scan, SpeedTendency, Programmable Repair indicator, Freeze frame, Memory, Digital Clock, Odometer saveMulti Language CompatibleHandlebar and Stem mountableAuto Start / StopWhether you're interested in a more effectiveTraining program or simply intoThe maximThat "knowledge is power"The level 3.3's impressive feature list including wireless cadence has everything you need. On ofThe best
Strengths: Good clear readout, well built sensors.
Weaknesses: Very dificult to install, positioning the magnets and the sensors is dificult. They virtually need to be touching to work, i initially set them up to clip each other and then moved it a fraction. This seems to work.
Very buly computer attachment.
Once set up the computer actually seems to work well. The auto stop/start is fine and the data accurate.
Spend time on the set up and it does what it says on the tin. Only used it for 100 miles but so far so good!!
a Weekend Warrior
from Almaty (Kazakhstan)
Date Reviewed: December 2, 2009
Strengths: It's actually SI3-B unit - level Three wireless, 9 functions with cadence kit.
1. big numbers on display,
2. backlite at night.
Weaknesses: 1. fragile-tiny mount that does NOT keep heavy computer securely -> easy to lose computer riding off-road.
2. cadence kit does NOT work at all,
3. NO auto start function - you have to press buttom every time before you ride, and after short break comp is off (auto off is Ok),
4. easy to break cheap zip-ties.
for $20 you get BIG BULKY unit which partially-and-sometimes works + spare batt. from cadence sensor. hope to lose and forget about it.