Greetings. I would like to change my crankset/bottom bracket but do not own the tools for it nor know exactly which tools I need. I have the general knowledge of how to do it but would like to confirm on the exact tools to do so. Im working with the Sugino Messenger crankset and matching BB. Thanks in advance.

tools I think I need:
- 8mm hex (check)
- park tool bbt 2
- park tool ccb 22

That sounds right. You also need some grease... and a torque wrench to get proper torque on the bottom bracket...

You only need one thing, a good lbs.

I really wish people would stop posting these smart alec comments in here... He obviously wants to do it himself, and there are enough online resources for him to figure out how to do it properly, providing he has the proper tools.

- hex key to get the crank bolts off
- crank puller to get the cranks off
- BB socket to get the BB out
- grease/anti-seize for re-assembly

Its bone easy, just make sure you don't cross thread the BB during re-install. If it doesn't screw in by hand, you've done something wrong. There should be virtually no resistance.

Park tool website:

Crank removal (sq spindle type -- other types covered on website)

BB service

One tool I strongly recommend getting is a good quality ratcheting click type calibrated torque wrench for proper tightening of crank arm bolts. The crank arm bolts require a torque of about 400 in-lbs (33 ft-lbs) to prevent loosening of the crank arms. This cannot be done using a hex (allen) key, and cannot be done accurately with a ratchet wrench and hex fitting. Futheremore, even when tightened properly, square tape cranks can creep on the spindle and lose bolt preload, requiring periodic retightening when first installed. The only way to check this is with a torque wrench. If you use excessive torque, you may draw the cranks in too much and wear them out prematurely.

Don't forget you'll need a nice big crescent wrench or socket wrench for that BB tool.

While a good torque wrench is a good tool to have for several parts on a bike, I wound up installing my cranks with the poor man's torque wrench: allen key, cheater bar, bathroom scale, and a bit of math.