If you want to work on your cadence here's a cadence drill from a programme I'm following...
First do the bkool FTP test to set your power zones. (Not the same day as you plan this cadence set)
10 min Warm up Z1 to Z2
5 mins 100rpm, max. of Z3
2 mins 90rpm, max. of Z3
5 mins 100rpm, max of Z3
5 mins 110rpm, max of Z3
2 mins 100rpm, max of Z3
5 mins 110rpm, max of Z3
3 mins 125rpm, max of Z3
Cool down 10 mins recovery, Z2 into Z1.
The 110 and 125rpm section are difficult to hold your form but do your best. Imagine wiping your feet on a mat when your pedal at the bottom of its stroke rather than just powering down on the down stroke. Once your stamina is built up the you can repeat the whole set but for now once will be enough.
It's best to do this on a steady gradient of say 2% so you have some resistance to push into - ive set this up...
http://www.bkool.com/profile/detail/924153?durationType=DISTANCE&lapCount=1