Enduro 3903 LLU bearings these BB's are sure to stand up to the abuse of daily street use. On our test BB the spindle weighed 152 grams and the whole setup came in at 226 grams. Use the bolts from your existing cranks, or
these if you lost yours. No proprietary tools needed,
Park BBT-22 and
any lockring tool is all you need to install this BB. The taper on these is JIS, BTW. That's common to Shimano and others, but will not work with "Campy" taper, AKA, ISO.