I'm 6 foot tall and 200+ lbs and I love my St Martin Cranks. They're super light and still strong. you should periodically check the bolt on the arm for tightness after riding, as it loosens slightly. The St Martins are a 22 mm spindle, so your inner race on the bottom bracket would be 22 mm. The Stylus has a USA bottom bracket. Be careful which sprocket you get with the St Martin cranks. Some may need to be modified. Not a large task but if you have no power tools at your convenience, it may make things difficult.