I like these all out of proportion to what they actually are—caps to keep the gunk out of my square-taper fixie crank threads. They look great (better than the online photo, actually!), are a bit pricey, and probably will get pretty scratched-up, eventually (can always sand them). Nice solid chunk of brass, too…no skimping, here. I should mention they’re very nicely finished. Maybe could be used as an extractor, but I’ll stick with my park-tool steel version (if you’re considering use as an extractor, I’d suggest you research it first, but you’ll need a nylon washer, in any case). Would buy again in a minute.

Well, It's my own fault: I added these to my cart in a hurry, to round-out an order of other small parts, but didn't read carefully enough. These are self-extractor CAPS only. The other half - the self-extractor BOLTS - aren't included. The product description isnt deceptive - I just made the mistake of looking at pictures and not reading. I guess I'm to buy a complete set somewhere, and toss out the aluminum caps? Seems silly, but maybe that's just the price for being stylish.

Sure, it's heavy, but it's a handsome bit of utility for your tapered crankset. My crank bolts came with a plastic gasket/trim piece that just pops off. The crank caps fit the bolts precisely! Prolly should grease the caps well. Looks very nice on my scorcher project.

Didn’t fit. But 100% me cos didn’t check my crank. So saving them til the next bike cos they are soooo beeyutiful.

Brass Crank Caps