Titanium chain & sprokets

[Peter Matteson]

Originally Posted by Holtzman

You should also note, that these bicycle sprockets are designed to take torque in one direction only. Ex, you don't ride a bike back wards. If you look closely, the tooth profile is optimized for load in the pedaling direction. It is much more obvious on the front chain rings.

Not true. They only see it in one direction. The teeth however are ground to help shifting in the normal direction of operation. See the below link to see what I mean.
http://www.dura-ace.com/publish/cont...ive_train.html

Originally Posted by Holtzman

These sprockets would also be very hard to work with. All the major bicycle component manufactures have there rear sprockets fitted on a non-standard spline, that would be VERY difficult to machine yourself. Theres also not very much material left over do drill your own mounting holes either.

This is true and I purposely didn't mention it before. It's also a PITA to take apart a cassette. Which is why I pointed to front chainrings.

Originally Posted by Holtzman

The front chain-rings would be much more easily adapted. Most road chain rings fit on a standard 130mm bold circle, and the higher quality ones are very light. Mountain bike chain rings are smaller in size, and also have a smaller bold diameter.(which i don't know off the top of my head) On the other hand you still limited to bicycle chain, which although is 1/2", is much narrower than standard ANSI chain. You also need special connecting pins, to change the chain length, and a different chain tool. Also, you cannot get half-links for it.

Shimano Std Chainring BOLT circle = 130mm
Campagnolo Std Chainring BOLT circle = 135mm

Yes they use a 1/2" pitch chain. No the chaintools aren't that special just smaller. No special parts are required you just add or remove links. Bike chains don't use master links. Yeah they make really narrow chain for the 10-speed cassettes that doesn't even work with the 9-speed cassettes. The advantage is you can get it at any bike shop.