Bottom_Brackets BOTTOM BRACKET PARTS, SM-BB52, RIGHT & LEFT ADAPTER(BSA), FOR WIDTH 68/73MM megaexo You need a minimum of

You need a minimum of 5mm of headset spacer above the stem and your steerer tube should be 1-2mm below the top of this spacer

You will love the control you have over your brakes

So even when riding you always have the ability to tighten your headset if need be

20P-2 bracket

Bottom_Brackets BOTTOM BRACKET PARTS, SM-BB52, RIGHT & LEFT ADAPTER(BSA), FOR WIDTH 68/73MM megaexo You need a minimum ofShimano Deore SM BB52 Bottom Bracket Threaded HOLLOWTECH II 68 73 mm shell width With better sealing and rotation the Shimano Deore SMBB 52 bottom bracket delivers high driving efficiency. Use: MTB Model: SM BB52 BB Type: HOLLOWTECH II Threaded: BSA Threaded BB shell width: 68 73mm Shell diameter: BSA (BC 1. 37)