I have a Cannondale Killer V900 mountain bike that I bought new in 1994. It came with 22x32x42 chainrings, which I have decided to change to a Sugino XD300, 26x36x46 crank. I do have a couple of questions.
a) The BB shell size on the Cannondale is 70mm. Is this a Cannondale proprietary size? Am I going to need a new BB to accomodate the Sugino? The Sugino specifies a spindle interface type that is Square Taper JIS (what does this mean?). If I do find out that I can use the stock BB, should I insist on it being repacked by the bicycle shop?
b) The Sugino XD300 comes with steel chainrings, cost 45 U.S. dollars and weighs 860g, while the XD600 is made of alloy chainrings, weighs 690g and cost 67 U.S. dollars.
I think I read somewhere that steel chainrings last longer. Is this not so?
Is the cost difference justified?
c) If I do need a new BB, what brand and model do you recommend? I treasure stiffness, strength, reliability in a bottom bracket. I am of the opinion that the newer type BBs like Octalink etc would not work with the Sugino XD300 and the BB shell size of the Cannondale. Am I right? What kind of BB should I look for?
Thanks for your response.
Regards,
Lucas
a) The BB shell size on the Cannondale is 70mm. Is this a Cannondale proprietary size? Am I going to need a new BB to accomodate the Sugino? The Sugino specifies a spindle interface type that is Square Taper JIS (what does this mean?). If I do find out that I can use the stock BB, should I insist on it being repacked by the bicycle shop?
b) The Sugino XD300 comes with steel chainrings, cost 45 U.S. dollars and weighs 860g, while the XD600 is made of alloy chainrings, weighs 690g and cost 67 U.S. dollars.
I think I read somewhere that steel chainrings last longer. Is this not so?
Is the cost difference justified?
c) If I do need a new BB, what brand and model do you recommend? I treasure stiffness, strength, reliability in a bottom bracket. I am of the opinion that the newer type BBs like Octalink etc would not work with the Sugino XD300 and the BB shell size of the Cannondale. Am I right? What kind of BB should I look for?
Thanks for your response.
Regards,
Lucas