Take off from my S-Works Roubaix. Was working great when removed--I just upgraded to a crankset with a power meter. I've since sold the Roubaix and am cleaning out the garage and getting rid of some old take-off parts I've been hanging on to for a while... "just in case". :) The original bike this was installed on was circa 2012 / 2013... and I believe the bottom bracket shell was Specialized OSBB. https://www.kogel.cc/blogs/kbba/specialized-osbb-explained But there are typically adapters out there for many / most cranskets to make them viable on a variety of different bikes / bottom bracket shells. Wheels Manufacturing comes to mind... but I'm sure there are others... Problem Solvers... Modern Bike... etc. https://wheelsmfg.com/bottom-brackets.html?gad=1&gclid=CjwKCAjwl6OiBhA2EiwAuUwWZdzmhb1H_hdcg-hylcrkHUmESP3tLjK9f5LbOGTqwI4CyFYyHrf_PBoCxzYQAvD_BwE https://problemsolversbike.com/products https://www.modernbike.com/bottom-bracket-adapters The crankset wasn't replaced specifically because the teeth were worn... but it is a used crankset so you have to assume that it may need new chainrings sooner than a brand new cransket would. But you can get pretty affordable replacements online. https://www.jensonusa.com/SRAM-Red-Yaw-10-Speed-Chainring-Yaw-34T-110-Chainring?loc=usa&gclid=CjwKCAjwl6OiBhA2EiwAuUwWZfMWl_wsYdjaG9QWPoLW3dd0Vyos6nQhuON1dAbfDTNiBAQ5pcsZeRoC42QQAvD_BwE I've never weighed it so not sure about that detail but everything S-Works is super light... so it's definitely on the lighter side. Here's a similar crankset for sale with a listed weight of 540 grams. But looks like they've replaced the original super light chainrings with fairly standards ones. https://elevatecycling.com/products/170mm-50-34t-specialized-s-works-fact-carbon-crankset#:~:text=170mm%2050%2F34T%20BB30%20Specialized%20S%2DWORKS%20FACT%20Carbon%20Crankset%20540g,-%24175.00 Reply with any questions. I'm in the 9th and 9th area.