NECO Thread Bottom Bracket

	
inner bearing: JIS-square
	
made of steel
	
made of plastic
	
BSA thread
	
nylon (left) and steel cup (right)
	
massive axle
	
axle length: 107mm / 110.5mm / 113.5mm / 115mm / 119mm / 122.5mm / 127.5mm / 131mm