Hello.
I love studded snow tires. We had them on our Civic and had better traction on snow and ice than AWD vehicles on all seasons. Studded tires are second only to chains and can be driven at high speed. We have a Clarity now and still live in a place that gets a lot of snow and that's how I came across this thread.
I put some calculations in a spreadsheet to compare tire sizes to the stock 235/45R18 and I agree with the other people that have mentioned this size that 215/55R17 seems like a great match. Narrower tires help in snow and getting a narrower tire also reduces risk of clearance issues. This is the spreadsheet:
https://docs.google.com/spreadsheets/d/1HSnYmUaTGy9DxgmNCE6rfPIt-wgEQNMYekntcYGfzh8/edit?usp=sharing
Next is the offset of the wheels. The Clarity has +50mm offset. This means the mounting surface of the wheels is moved 50 mm outward from the center of the wheels. Installing wheels with different offset results in a different scrub radius and can adversely affect handling. So wheels with a smaller positive offset are not very suitable.
Someone in this thread mentioned Accord wheels and I found these wheels from a 2016 Accord:
https://www.wheelership.com/new-17-replacement-wheel-for-honda-accord-2016-2017-rim-64080.html
The link given is for inexpensive replicas of the OE wheels. I just ordered them and I hope they're as strong as OE. The seller claims JWL certification. Here's something on this Japanese standard:
https://en.wikipedia.org/wiki/JWL_standard
These wheels have an offset of 55mm and with 5 mm spacers they will match the Clarity's offset. Their appearance is somewhat similar to Clarity wheels. They are more than an inch less wide than the Clarity wheels, which are on the wide side for their tires. This will make the wheels a good match for the 215 width tires.
Tirerack has three different studdable snow tires in 215/55R17. I like these:
https://www.tirerack.com/tires/tire...55SR7WF2&vehicleSearch=false&fromCompare1=yes
I like them because they have reviews, and they're very positive. I've had very good luck going by Tirerack's ratings in the past and I prefer this over choosing by known brand names. Tirerack has a studding service that you can select on checkout.
If you want to get studded tires, do check what your local laws are. Not all states allow studded tires, because they are destructive to the road. Here in WA, studded tires are legal November 1 through March 31st. This spring, probably due to weather, the take-off date was moved forward a bit.
What I haven't figured out yet is how to get the TPMS to work. Perhaps it's not essential, but it'd be nice if that worked. I saw online that many vehicles have the sensors at the base of the tire valves. I wrote to hondapartsnow.com to ask for part numbers of valves with TPMS sensors. Their response was as follows:
On your 18 clarity plug in hybrid, the tpms is on your wheel speed sensors. You would not need to replace those as long as wheels are in specs. If out of specs you will have to contact whoever you bought the wheels from. Now you do want to put new valves on your wheels if not equip.
The part number is 42753-SB8-661.
I looked up that part number and that's just a regular rubber schrader valve.
So how do we get the right wheel speed sensors? What is the part number? Are they strapped to the inside of the wheel?
Thank you,
Michiel van Wessem