Serfas SI-30 15 Function Wireless Bike Computer - GPS Cycling Speedometer with Backlit Display for Road & Mountain Bikes - Track Speed, Distance & Cadence for Outdoor Training & Commuting

Well the zip ties aren’t long enough and I’ve been messing with it for 2 weeks and can’t get the cadence to work. Unfortunately I went out of town and it’s too late to exchange or return so I’m stuck with a pile of garbage I can’t even use. 5 months now and the speed sensor has stopped working. The company Serfas has awful support, despite a warranty they just stopped responding. Spend your money somewhere else this is garbage.Worked great for a year, then everything stopped. Although the computer is active, it appears the computer is not receiving a signal from either sensor even though all batteries were replaced.One day all was perfect then on the following the SI-30 stopped receiving any signal. Maybe it's just tired, probably it died.I bought this and it was DOA. Complete waste of time I have to return it. Two of the batteries were dead and the unit doesn't work