SI-30 Level 3 Dual Wireless + Cadence


Available in stock
SKU: SI-30 / 713835030790

Quick Overview

Whether you’re interested in a more effective training program or simply into the maxim that “knowledge is power” the level 3’s impressive feature list including wireless cadence has everything you need. One of the best value’s in cycling computers on the market.

414 in stock (can be backordered)




  • Handlebar & Stem Mountable
  • Large 1.5 Inch Screen
  • Auto Start/Stop
  • KM Or MI Selectable

9 Functions:

  • Current Speed
  • Average Speed
  • Max Speed
  • Trip Distance
  • Auto Trip Timer
  • Speed Comparator
  • Odometer
  • Auto Scan
  • Speed Tendency
  • Cadence
  • Programmable Repair Indicator
  • Freeze Fame
  • Memory
  • Digital Clock
  • Odometer Save

SI-30 Instructions

5 reviews for SI-30 Level 3 Dual Wireless + Cadence

  1. Marvin

    Great little wireless computer. Works great in all aspects. The only complaint I have is the set-up. Depending on your bike set-up will determine how well the computer reads. I would definitely recommend this product to anyone.

  2. tater

    Nice cadence unit. Make sure to actually use a tape to measure ur wheel diamater to get speed/distance setup accurate. BTW I ride in the rain a lot, had it for a year w / no problems. I’m diggin.’ it!

  3. Jason Bailey

    Installed with ease. Clear screen and I like the option of having the info scroll or stay in one spot. I like the cadence, but would prefer viewing size switched with the speed (unless I missed it in the instructions)

  4. Brazilian biker

    The auto ON/OFF function doesn’t work well…

    I need manually turn on the computer, else it doesn’t work.

  5. Oliver SB

    THis is one of the best I’ve had – the wireless aspect makes set up effortless, and you can vary the position on the handlebars with no complications – I have on front end of aero-bars. I don’t understand why any speedos are made without cadence! This has been totally waterproof, and starts up no problem. This photo is misleading as the screen is much better than shown. I have only had one problem – the autoreset of trip time does not seem to work, and although the very nice UK distributor offered a replacement, its not the cadence model 🙁 Otherwise excellent experience all round. Lets see how long it lasts. Keep up the good work Serfas!

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