It’s been almost 1 year exactly since I started racing/driving a spec e30 on track and I have just had my second valve stem failure.
First one was with rubber valves as one started to leak, second was a alloy valve stem that just sheared off. Funny enough, they were on the same track, same corner of the car, 11 months apart.
My rims are the 949s SE30s spec with the double stems, so as you can imagine, I am a little paranoid with double the chance of failure.
Let me know what you guys use!
I have added a pic for proof.