Circuit Performance Shorty Black Bolt Review

Black anodized sun bleached to orange. The rubber baskets rotted and cracked within a few months. air leak. Dangerous. I would not buy them again nor do I recommend them.

Relatively cheap but fitted to a 1991 Miata racer after buying new Advanti Storm wheels. Despite the heat and harsh environment, they hold their breath and have proven their worth. Would buy again.

This is fantastic for the money. The only problem is that even after tightening to typical metal shank torques, when tightened with a screwdriver, the caps still rotate in the bore. No leaks or anything, but that leaves me a bit unsure.

Made from aluminum so small threads can break. I torqued the first 3 perfectly with a torque wrench when the last one decided to remove the threads. My advice: use steel valve stems if you want longer life and reliability. I have a feeling they will let me down or slowly phase out as the day progresses.

I prefer these over WEDS stems because there are no visible fasteners on the outside of the wheel. In addition, they are quite short and the aluminum caps are well made. I bought a second set for my 4runner because they sit so deep in the rim that they are much safer off-road. I'm only giving 4 stars for durability because I haven't had any 4runners off the pavement since they were added. I have no doubt they will be great.

Poor quality control. One of the nuts on the back wasn't even threaded, and the inside diameter is too big to thread it yourself. I emailed Circuit Performance and got an automated response that they will get back to me usually within 1-2 hours. Three days passed without an answer. I would just return them but the bad nut was on the last wheel I installed. Too much pain to remove all the beadlock screws. You only have to buy a nut

coverage is pretty good. The short stem looks really good on my 6ul rims on my Miata. When tightening, I used a 10mm wrench on the butt plate, held it in place, and gently tightened the first nut, tightening it to about 6 or 7 foot-pounds. The caps will hold up as long as you tighten the nut, not the cap. I also used Loctite 242 on the lock nut. Has been holding its breath well for a week now. Edit: I got one after a few months and then the other one started leaking. I chose 949 Racing stems…