I measured these in at 67x26mm, because they're suppose to be 65mm or something like that. The were great value for a great product while providing grip and durability for my speed run car. I know guys that have ran these exact Contact foams 130+ MPH, but I can only speak for my max speed of 64 MPH. The tires have held up fairly well for the abuse I've taken it through.
Radiator Coolant Overflow Expansion Bottle Tank Reservoir for 88-91 Civic CRX
Feb 25, 2022
A good cheap alternative
It has held up for a couple rides so far with no leaks, and holds pressure. It looks and fits about 95% close to the OEM Honda reservoir; just needs a slight wiggle and bam!