If you own a Specialized electric bike and swap wheels around you will know all about this part. For the system to work you need to have one of these speed sensors fitted to your rear wheel / hub. It replaces a standard disc rotor lockring. It uses the same lockring tool as a standard Shimano cassette so no special tools to buy. If you have followed my blog over the years you will know that I have several different wheels sets for my Creo 1 road, Creo 1 gravel and Creo 2 gravel bikes. They all need a speed sensor lockring fitted. When I bought the last one from Certini the part number has changed and this is a V2 model. Not a clue what the difference is, its looks and perform the same as the original V1 model. They are easier to find now as when I first bought one many years ago for a DT Swiss wheel set on my Creo 1 they had to be ordered in from Specialized UK and they only had a couple in stock at the time. As for value for money you have no choice what Specialized put on them as you have to pay it. £12 is not too bad to be honest, could be a lot higher.
RRP £11.99 and I paid £11.99 from Certini Cycles
Manufacturers Blurb -
This is an electric speed sensor magnet holder for use on certain Specialized E-bikes.
Compatibility:
- Specialized Como
- Specialized Como Sl
- Specialized Creo Sl
- Specialized Levo
- Specialized Vado Sl
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