Someone will come along with the long answer shortly no doubt but I'll just do reassuring hand hold and say that the S-300 will work and work very well with very little fuss. I've been using mine for seven years daily and have no complaints. That said they RRP at about £100? If so consider spending the extra £25ish to get a set of forum favourite Omniums from Bike24
You'll need some decent grease for the threads and BB tool like this, but it's a very installation - getting the old BB out of the frame maybe not though. Also if not already removed, it will probably need a different BB tool like this as it's not external cups.
Edit:
Should you get stuck at any point there's also the Mechanics and Fixing subforum where you'll find loads of useful information.
Someone will come along with the long answer shortly no doubt but I'll just do reassuring hand hold and say that the S-300 will work and work very well with very little fuss. I've been using mine for seven years daily and have no complaints. That said they RRP at about £100? If so consider spending the extra £25ish to get a set of forum favourite Omniums from Bike24
You'll need some decent grease for the threads and BB tool like this, but it's a very installation - getting the old BB out of the frame maybe not though. Also if not already removed, it will probably need a different BB tool like this as it's not external cups.
Edit:
Should you get stuck at any point there's also the Mechanics and Fixing subforum where you'll find loads of useful information.